Scion FR-S (ZN6, FA20) → MaxxECU MaxxECU STREET REV9+ (auto)
Scion FR-S (ZN6, FA20) — MaxxECU — MaxxECU STREET
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 8: read the Findings page before cutting any wire |
| Size of the job | 56 wires · 10 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A33-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MAXXECUSTREE-C1-M4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A33-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A34-1 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A34-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A34-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A36-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A36-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A33-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A34-27 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A35-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A35-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A36-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-A34-34 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-A35-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A35-22 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A36-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A34-16 | MAXXECUSTREE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A34-14 | MAXXECUSTREE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A36-21 | MAXXECUSTREE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A36-10 | MAXXECUSTREE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A36-31 | MAXXECUSTREE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A36-8 | MAXXECUSTREE-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A36-12 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A36-14 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A36-22 | MAXXECUSTREE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A36-25 | MAXXECUSTREE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A36-24 | MAXXECUSTREE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A36-32 | MAXXECUSTREE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A36-13 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A36-23 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A33-28 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A34-29 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A34-30 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A34-35 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | SP-SHD-1 | MAXXECUSTREE-C1-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A35-13 | MAXXECUSTREE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A35-12 | MAXXECUSTREE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A35-11 | MAXXECUSTREE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A33-20 | MAXXECUSTREE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A34-5 | MAXXECUSTREE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A33-22 | MAXXECUSTREE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A34-20 | MAXXECUSTREE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A35-31 | MAXXECUSTREE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A36-30 | MAXXECUSTREE-C1-J1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A33-12 | MAXXECUSTREE-C1-J2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A36-20 | MAXXECUSTREE-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A33-14 | MAXXECUSTREE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A33-15 | MAXXECUSTREE-C1-K4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A33-19 | MAXXECUSTREE-C1-E1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A33-18 | MAXXECUSTREE-C1-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).
| # | Probe A | Probe B | Expect | Why | Reading |
|---|---|---|---|---|---|
| 1 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-H1 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-L4 | open (OL) | +12 V supply must not touch power ground | |
| 3 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MAXXECUSTREE-C1-L4 | MAXXECUSTREE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-G1 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUSTREE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A2 | IGN 1 | — | W25 | — | 0.5 | OEM-A36-21 | — | — | — |
| A3 | IGN 2 | — | W26 | — | 0.5 | OEM-A36-10 | — | — | — |
| A4 | GPO 8/TACHO | — | W45 | — | 0.5 | OEM-A33-20 | — | — | — |
| B2 | IGN 3 | — | W27 | — | 0.5 | OEM-A36-31 | — | — | — |
| B3 | IGN 4 | — | W28 | — | 0.5 | OEM-A36-8 | — | — | — |
| B4 | GPO 1 | — | W42 | — | 0.5 | OEM-A35-13 | — | — | — |
| C2 | IGN 5 | — | — | — | — | — | — | — | — |
| C3 | IGN 6 | — | — | — | — | — | — | — | — |
| C4 | GPO 2 | — | W43 | — | 0.5 | OEM-A35-12 | — | — | — |
| D1 | WBO2 Heater- | — | W46 | — | 0.5 | OEM-A34-5 | — | — | — |
| D4 | GPO 3 | — | W44 | — | 0.5 | OEM-A35-11 | — | — | — |
| E1 | CAN H | — | W55 | — | 0.5 | OEM-A33-19 | — | — | — |
| E2 | CAN L | — | W56 | — | 0.5 | OEM-A33-18 | — | — | — |
| E3 | GND Shield | — | W41 | — | 0.5 | SP-SHD-1 | — | — | — |
| F1 | CLT | — | W52 | — | 0.5 | OEM-A36-20 | — | — | — |
| F2 | IAT | — | — | — | — | — | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W22 | — | 0.5 | SP-5V1-1 | — | — | — |
| G2 | TPS/AIN | — | W49 | — | 0.5 | OEM-A35-31 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W23 | — | 0.5 | OEM-A34-16 | — | — | — |
| H4 | HOME | — | W24 | — | 0.5 | OEM-A34-14 | — | — | — |
| J1 | AIN 1 (temperature) | — | W50 | — | 0.5 | OEM-A36-30 | — | — | — |
| J2 | AIN 2 (Temperature) | — | W51 | — | 0.5 | OEM-A33-12 | — | — | — |
| J3 | AIN 3 (0-5V) | — | W47 | — | 0.5 | OEM-A33-22 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W48 | — | 0.5 | OEM-A34-20 | — | — | — |
| K1 | INJ 1 | — | W29 | — | 0.5 | OEM-A36-12 | — | — | — |
| K1 | INJ 1 | — | W35 | — | 0.5 | OEM-A36-13 | — | — | — |
| K2 | INJ 2 | — | W30 | — | 0.5 | OEM-A36-14 | — | — | — |
| K2 | INJ 2 | — | W36 | — | 0.5 | OEM-A36-23 | — | — | — |
| K3 | DIN 1 | — | W53 | — | 0.5 | OEM-A33-14 | — | — | — |
| K4 | DIN 2 | — | W54 | — | 0.5 | OEM-A33-15 | — | — | — |
| L3 | INJ 6 | — | W34 | — | 0.5 | OEM-A36-32 | — | — | — |
| L4 | Engine GND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W31 | — | 0.5 | OEM-A36-22 | — | — | — |
| M2 | INJ 4 | — | W32 | — | 0.5 | OEM-A36-25 | — | — | — |
| M3 | INJ 5 | — | W33 | — | 0.5 | OEM-A36-24 | — | — | — |
| M4 | +12V ECU power supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-A33
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU power (+B2, main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | Intake air temperature (THA, in MAF) | — | W51 | — | 0.5 | MAXXECUSTREE-C1-J2 | — | — | — |
| 14 | Starter signal (STSW2) | — | W53 | — | 0.5 | MAXXECUSTREE-C1-K3 | — | — | — |
| 15 | Clutch switch (CLSW) | — | W54 | — | 0.5 | MAXXECUSTREE-C1-K4 | — | — | — |
| 16 | Neutral switch (NSW) | — | — | — | — | — | — | — | — |
| 17 | Starter signal (STSW2) | — | — | — | — | — | — | — | — |
| 18 | CAN low (CANL) | — | W56 | — | 0.5 | MAXXECUSTREE-C1-E2 | — | — | — |
| 19 | CAN high (CANH) | — | W55 | — | 0.5 | MAXXECUSTREE-C1-E1 | — | — | — |
| 2 | Battery constant (BATT, memory) | — | — | — | — | — | — | — | — |
| 20 | Blower relay (HB) | — | W45 | — | 0.5 | MAXXECUSTREE-C1-A4 | — | — | — |
| 22 | Mass air flow (VG) | — | W47 | — | 0.5 | MAXXECUSTREE-C1-J3 | — | — | — |
| 27 | Ignition switch sense (IGSW, IG2 relay) | — | — | — | — | — | — | — | — |
| 28 | Shield ground (SLE2) | — | W37 | — | 0.5 | SP-SHD-1 | — | — | — |
| 29 | MAF sensor ground (E2G) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Stop light switch (ST1-) | — | — | — | — | — | — | — | — |
| 4 | Power ground (EC) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Stop light switch (STP) | — | — | — | — | — | — | — | — |
| 8 | A/C pressure sensor (ACP) | — | — | — | — | — | — | — | — |
OEM-A34
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power ground (E03) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | DI injector confirmation (IJF1) | — | — | — | — | — | — | — | — |
| 13 | High-pressure fuel pump spill valve (FPF) | — | — | — | — | — | — | — | — |
| 14 | VVT cam sensor exhaust bank 1 (EV1+) | — | W24 | — | 0.5 | MAXXECUSTREE-C1-H4 | — | — | — |
| 15 | VVT cam sensor intake bank 2 (VV2+) | — | — | — | — | — | — | — | — |
| 16 | Crank position (NE+) | — | W23 | — | 0.5 | MAXXECUSTREE-C1-H3 | — | — | — |
| 17 | Knock sensor 2 (KNK2) | — | — | — | — | — | — | — | — |
| 18 | A/F ratio sensor (A1A-) | — | — | — | — | — | — | — | — |
| 19 | A/F ratio sensor (A1A+) | — | — | — | — | — | — | — | — |
| 2 | Power ground (E04) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Manifold absolute pressure (PIM) | — | W48 | — | 0.5 | MAXXECUSTREE-C1-J4 | — | — | — |
| 21 | Heated oxygen sensor (OX1B, rear) | — | — | — | — | — | — | — | — |
| 25 | VVT cam sensor exhaust bank 2 (EV2+) | — | — | — | — | — | — | — | — |
| 26 | VVT cam sensor intake bank 1 (VV1+) | — | — | — | — | — | — | — | — |
| 27 | Crank position return (NE-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | — | — | — | — | — | — | — |
| 29 | Shield ground (EKNK) | — | W38 | — | 0.5 | SP-SHD-1 | — | — | — |
| 3 | Power ground (E05) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Shield ground (SLE1) | — | W39 | — | 0.5 | SP-SHD-1 | — | — | — |
| 31 | DI injector confirmation (IJF2) | — | — | — | — | — | — | — | — |
| 32 | High-pressure fuel pump spill valve (FPD) | — | — | — | — | — | — | — | — |
| 34 | OCV power source (VCV, 5V) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 35 | Shield ground (SLE3) | — | W40 | — | 0.5 | SP-SHD-1 | — | — | — |
| 5 | A/F ratio sensor heater (HA1A) | — | W46 | — | 0.5 | MAXXECUSTREE-C1-D1 | — | — | — |
| 6 | ECU power (+B, main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Fuel pressure sensor (PR) | — | — | — | — | — | — | — | — |
OEM-A35
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Canister vent valve (VPMP) | — | — | — | — | — | — | — | — |
| 10 | Fuel pump control monitor (DI) | — | — | — | — | — | — | — | — |
| 11 | Cooling fan relay 3 (FAN1) | — | W44 | — | 0.5 | MAXXECUSTREE-C1-D4 | — | — | — |
| 12 | Cooling fan relay 2 (FAN2) | — | W43 | — | 0.5 | MAXXECUSTREE-C1-C4 | — | — | — |
| 13 | EFI main relay 1 (SSHUT) | — | W42 | — | 0.5 | MAXXECUSTREE-C1-B4 | — | — | — |
| 15 | Tachometer output (TACH) | — | — | — | — | — | — | — | — |
| 17 | ETCS relay (MCR) | — | — | — | — | — | — | — | — |
| 19 | Fuel pump control (FPC) | — | — | — | — | — | — | — | — |
| 20 | Canister pressure sensor (PPMP) | — | — | — | — | — | — | — | — |
| 21 | Accelerator pedal 5V supply (VCPA) | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Accelerator pedal 5V supply (VCP2) | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 23 | Accelerator pedal position (VPA) | — | — | — | — | — | — | — | — |
| 26 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 29 | Accelerator pedal ground (EPA) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Accelerator pedal ground (EPA2) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Accelerator pedal position 2 (VPA2) | — | W49 | — | 0.5 | MAXXECUSTREE-C1-G2 | — | — | — |
| 35 | A/C clutch relay (AC) | — | — | — | — | — | — | — | — |
| 5 | Injector relay (IREL) | — | — | — | — | — | — | — | — |
| 7 | ETCS relay (+BM) | — | — | — | — | — | — | — | — |
| 8 | Leak detection pump (MPMP) | — | — | — | — | — | — | — | — |
OEM-A36
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Throttle actuator motor - (M-) | — | — | — | — | — | — | — | — |
| 10 | Ignition coil 2 (IGT2) | — | W26 | — | 0.5 | MAXXECUSTREE-C1-A3 | — | — | — |
| 11 | Purge valve (PRG) | — | — | — | — | — | — | — | — |
| 12 | Injector 1 port (#10) | — | W29 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 13 | Injector 4 port (#40) | — | W35 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 14 | Injector 1 direct (#1) | — | W30 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 16 | OCV intake bank 2 (OC2) | — | — | — | — | — | — | — | — |
| 17 | OCV intake bank 1 (OC1) | — | — | — | — | — | — | — | — |
| 18 | Throttle position (VTA1) | — | — | — | — | — | — | — | — |
| 19 | Sensor 5V supply (VC) | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 2 | Throttle actuator motor + (M+) | — | — | — | — | — | — | — | — |
| 20 | Oil temperature (OT) | — | W52 | — | 0.5 | MAXXECUSTREE-C1-F1 | — | — | — |
| 21 | Ignition coil 1 (IGT1) | — | W25 | — | 0.5 | MAXXECUSTREE-C1-A2 | — | — | — |
| 22 | Injector 2 port (#20) | — | W31 | — | 0.5 | MAXXECUSTREE-C1-M1 | — | — | — |
| 23 | Injector 4 direct (#4) | — | W36 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 24 | Injector 3 direct (#3) | — | W33 | — | 0.5 | MAXXECUSTREE-C1-M3 | — | — | — |
| 25 | Injector 2 direct (#2) | — | W32 | — | 0.5 | MAXXECUSTREE-C1-M2 | — | — | — |
| 28 | Throttle position 2 (VTA2) | — | — | — | — | — | — | — | — |
| 29 | Sensor ground (E1) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Power ground (E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Engine coolant temperature (THW) | — | W50 | — | 0.5 | MAXXECUSTREE-C1-J1 | — | — | — |
| 31 | Ignition coil 3 (IGT3) | — | W27 | — | 0.5 | MAXXECUSTREE-C1-B2 | — | — | — |
| 32 | Injector 3 port (#30) | — | W34 | — | 0.5 | MAXXECUSTREE-C1-L3 | — | — | — |
| 4 | Power ground (E01) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | OCV exhaust bank 2 (OE2) | — | — | — | — | — | — | — | — |
| 6 | Heated oxygen sensor heater (HT1B) | — | — | — | — | — | — | — | — |
| 7 | OCV exhaust bank 1 (OE1) | — | — | — | — | — | — | — | — |
| 8 | Ignition coil 4 (IGT4) | — | W28 | — | 0.5 | MAXXECUSTREE-C1-B3 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-A33-29 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A34-27 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-A35-29 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-A35-30 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-A36-29 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MAXXECUSTREE-C1-H1 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | MAXXECUSTREE-C1-H2 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A33-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A34-6 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | MAXXECUSTREE-C1-M4 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W18 | — | 0.5 | OEM-A34-34 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-A35-21 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-A35-22 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-A36-19 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | MAXXECUSTREE-C1-G1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A33-4 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A34-1 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A34-2 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A34-3 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A36-3 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A36-4 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MAXXECUSTREE-C1-L4 | — | — | — |
SP-SHD
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W37 | — | 0.5 | OEM-A33-28 | — | — | — |
| 1 | — | — | W38 | — | 0.5 | OEM-A34-29 | — | — | — |
| 1 | — | — | W39 | — | 0.5 | OEM-A34-30 | — | — | — |
| 1 | — | — | W40 | — | 0.5 | OEM-A34-35 | — | — | — |
| 1 | — | — | W41 | — | 0.5 | MAXXECUSTREE-C1-E3 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A33-1 | ECU power (+B2, main relay) | power_in | MAXXECUSTREE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-A33-12 | Intake air temperature (THA, in MAF) | temp_in | MAXXECUSTREE-C1-J2 | AIN 2 (Temperature) | temp_in | single_source | |
| OEM-A33-14 | Starter signal (STSW2) | digital_in | MAXXECUSTREE-C1-K3 | DIN 1 | digital_in | single_source | |
| OEM-A33-15 | Clutch switch (CLSW) | digital_in | MAXXECUSTREE-C1-K4 | DIN 2 | digital_in | single_source | |
| OEM-A33-16 | Neutral switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-A33-17 | Starter signal (STSW2) | digital_in | — | — | — | single_source | |
| OEM-A33-18 | CAN low (CANL) | can_l | MAXXECUSTREE-C1-E2 | CAN L | can_l | single_source | |
| OEM-A33-19 | CAN high (CANH) | can_h | MAXXECUSTREE-C1-E1 | CAN H | can_h | single_source | |
| OEM-A33-2 | Battery constant (BATT, memory) | power_in | — | — | — | single_source | |
| OEM-A33-20 | Blower relay (HB) | low_side_out | MAXXECUSTREE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-A33-22 | Mass air flow (VG) | analog_in | MAXXECUSTREE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-A33-27 | Ignition switch sense (IGSW, IG2 relay) | digital_in | — | — | — | single_source | |
| OEM-A33-28 | Shield ground (SLE2) | shield | MAXXECUSTREE-C1-E3 | GND Shield | shield | single_source | |
| OEM-A33-29 | MAF sensor ground (E2G) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A33-3 | Stop light switch (ST1-) | digital_in | — | — | — | single_source | |
| OEM-A33-4 | Power ground (EC) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A33-7 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-A33-8 | A/C pressure sensor (ACP) | analog_in | — | — | — | single_source | |
| OEM-A34-1 | Power ground (E03) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A34-11 | DI injector confirmation (IJF1) | analog_in | — | — | — | single_source | |
| OEM-A34-13 | High-pressure fuel pump spill valve (FPF) | low_side_out | — | — | — | single_source | |
| OEM-A34-14 | VVT cam sensor exhaust bank 1 (EV1+) | trigger_in | MAXXECUSTREE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-A34-15 | VVT cam sensor intake bank 2 (VV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-16 | Crank position (NE+) | trigger_in | MAXXECUSTREE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-A34-17 | Knock sensor 2 (KNK2) | knock_in | — | — | — | single_source | |
| OEM-A34-18 | A/F ratio sensor (A1A-) | — | — | — | — | single_source | |
| OEM-A34-19 | A/F ratio sensor (A1A+) | — | — | — | — | single_source | |
| OEM-A34-2 | Power ground (E04) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A34-20 | Manifold absolute pressure (PIM) | analog_in | MAXXECUSTREE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-A34-21 | Heated oxygen sensor (OX1B, rear) | lambda_nb_in | — | — | — | single_source | |
| OEM-A34-25 | VVT cam sensor exhaust bank 2 (EV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-26 | VVT cam sensor intake bank 1 (VV1+) | trigger_in | — | — | — | single_source | |
| OEM-A34-27 | Crank position return (NE-) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A34-28 | Knock sensor 1 (KNK1) | knock_in | — | — | — | single_source | |
| OEM-A34-29 | Shield ground (EKNK) | shield | MAXXECUSTREE-C1-E3 | GND Shield | shield | single_source | |
| OEM-A34-3 | Power ground (E05) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A34-30 | Shield ground (SLE1) | shield | MAXXECUSTREE-C1-E3 | GND Shield | shield | single_source | |
| OEM-A34-31 | DI injector confirmation (IJF2) | analog_in | — | — | — | single_source | |
| OEM-A34-32 | High-pressure fuel pump spill valve (FPD) | low_side_out | — | — | — | single_source | |
| OEM-A34-34 | OCV power source (VCV, 5V) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-A34-35 | Shield ground (SLE3) | shield | MAXXECUSTREE-C1-E3 | GND Shield | shield | single_source | |
| OEM-A34-5 | A/F ratio sensor heater (HA1A) | low_side_out | MAXXECUSTREE-C1-D1 | WBO2 Heater- | low_side_out | single_source | |
| OEM-A34-6 | ECU power (+B, main relay) | power_in | MAXXECUSTREE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-A34-9 | Fuel pressure sensor (PR) | analog_in | — | — | — | single_source | |
| OEM-A35-1 | Canister vent valve (VPMP) | low_side_out | — | — | — | single_source | |
| OEM-A35-10 | Fuel pump control monitor (DI) | analog_in | — | — | — | single_source | |
| OEM-A35-11 | Cooling fan relay 3 (FAN1) | low_side_out | MAXXECUSTREE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-A35-12 | Cooling fan relay 2 (FAN2) | low_side_out | MAXXECUSTREE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-A35-13 | EFI main relay 1 (SSHUT) | low_side_out | MAXXECUSTREE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-A35-15 | Tachometer output (TACH) | tacho_out | — | — | — | single_source | |
| OEM-A35-17 | ETCS relay (MCR) | low_side_out | — | — | — | single_source | |
| OEM-A35-19 | Fuel pump control (FPC) | low_side_out | — | — | — | single_source | |
| OEM-A35-20 | Canister pressure sensor (PPMP) | analog_in | — | — | — | single_source | |
| OEM-A35-21 | Accelerator pedal 5V supply (VCPA) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-A35-22 | Accelerator pedal 5V supply (VCP2) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-A35-23 | Accelerator pedal position (VPA) | analog_in | — | — | — | single_source | |
| OEM-A35-26 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-A35-29 | Accelerator pedal ground (EPA) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A35-30 | Accelerator pedal ground (EPA2) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A35-31 | Accelerator pedal position 2 (VPA2) | analog_in | MAXXECUSTREE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-A35-35 | A/C clutch relay (AC) | low_side_out | — | — | — | single_source | |
| OEM-A35-5 | Injector relay (IREL) | low_side_out | — | — | — | single_source | |
| OEM-A35-7 | ETCS relay (+BM) | low_side_out | — | — | — | single_source | |
| OEM-A35-8 | Leak detection pump (MPMP) | low_side_out | — | — | — | single_source | |
| OEM-A36-1 | Throttle actuator motor - (M-) | hbridge_out | — | — | — | single_source | |
| OEM-A36-10 | Ignition coil 2 (IGT2) | ignition_out | MAXXECUSTREE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-A36-11 | Purge valve (PRG) | low_side_out | — | — | — | single_source | |
| OEM-A36-12 | Injector 1 port (#10) | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-A36-13 | Injector 4 port (#40) | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-A36-14 | Injector 1 direct (#1) | injector_out | MAXXECUSTREE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-A36-16 | OCV intake bank 2 (OC2) | low_side_out | — | — | — | single_source | |
| OEM-A36-17 | OCV intake bank 1 (OC1) | low_side_out | — | — | — | single_source | |
| OEM-A36-18 | Throttle position (VTA1) | analog_in | — | — | — | single_source | |
| OEM-A36-19 | Sensor 5V supply (VC) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-A36-2 | Throttle actuator motor + (M+) | hbridge_out | — | — | — | single_source | |
| OEM-A36-20 | Oil temperature (OT) | temp_in | MAXXECUSTREE-C1-F1 | CLT | temp_in | single_source | |
| OEM-A36-21 | Ignition coil 1 (IGT1) | ignition_out | MAXXECUSTREE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-A36-22 | Injector 2 port (#20) | injector_out | MAXXECUSTREE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-A36-23 | Injector 4 direct (#4) | injector_out | MAXXECUSTREE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-A36-24 | Injector 3 direct (#3) | injector_out | MAXXECUSTREE-C1-M3 | INJ 5 | injector_out | single_source | |
| OEM-A36-25 | Injector 2 direct (#2) | injector_out | MAXXECUSTREE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-A36-28 | Throttle position 2 (VTA2) | analog_in | — | — | — | single_source | |
| OEM-A36-29 | Sensor ground (E1) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A36-3 | Power ground (E02) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A36-30 | Engine coolant temperature (THW) | temp_in | MAXXECUSTREE-C1-J1 | AIN 1 (temperature) | temp_in | single_source | |
| OEM-A36-31 | Ignition coil 3 (IGT3) | ignition_out | MAXXECUSTREE-C1-B2 | IGN 3 | ignition_out | single_source | |
| OEM-A36-32 | Injector 3 port (#30) | injector_out | MAXXECUSTREE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-A36-4 | Power ground (E01) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A36-5 | OCV exhaust bank 2 (OE2) | low_side_out | — | — | — | single_source | |
| OEM-A36-6 | Heated oxygen sensor heater (HT1B) | low_side_out | — | — | — | single_source | |
| OEM-A36-7 | OCV exhaust bank 1 (OE1) | low_side_out | — | — | — | single_source | |
| OEM-A36-8 | Ignition coil 4 (IGT4) | ignition_out | MAXXECUSTREE-C1-B3 | IGN 4 | ignition_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A33-1 | SP-14V-1 | 0.85 | no route | ECU power (+B2, main relay) | — | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | no route | ECU power (+B, main relay) | — | |
| W3 | SP-14V-1 | MAXXECUSTREE-C1-M4 | 0.85 | no route | +12V ECU power supply | — | |
| W4 | OEM-A33-4 | SP-GND-1 | 0.85 | no route | Power ground (EC) | — | |
| W5 | OEM-A34-1 | SP-GND-1 | 0.85 | no route | Power ground (E03) | — | |
| W6 | OEM-A34-2 | SP-GND-1 | 0.85 | no route | Power ground (E04) | — | |
| W7 | OEM-A34-3 | SP-GND-1 | 0.85 | no route | Power ground (E05) | — | |
| W8 | OEM-A36-3 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W9 | OEM-A36-4 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W10 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W11 | OEM-A33-29 | SP-0V-1 | 0.5 | no route | MAF sensor ground (E2G) | — | |
| W12 | OEM-A34-27 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W13 | OEM-A35-29 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA) | — | |
| W14 | OEM-A35-30 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA2) | — | |
| W15 | OEM-A36-29 | SP-0V-1 | 0.5 | no route | Sensor ground (E1) | — | |
| W16 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W17 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W18 | OEM-A34-34 | SP-5V1-1 | 0.5 | no route | OCV power source (VCV, 5V) | — | |
| W19 | OEM-A35-21 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCPA) | — | |
| W20 | OEM-A35-22 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCP2) | — | |
| W21 | OEM-A36-19 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VC) | — | |
| W22 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | no route | +5V sensor supply | — | |
| W23 | OEM-A34-16 | MAXXECUSTREE-C1-H3 | 0.5 | no route | Crank position (NE+) | — | |
| W24 | OEM-A34-14 | MAXXECUSTREE-C1-H4 | 0.5 | no route | VVT cam sensor exhaust bank 1 (EV1+) | — | |
| W25 | OEM-A36-21 | MAXXECUSTREE-C1-A2 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W26 | OEM-A36-10 | MAXXECUSTREE-C1-A3 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W27 | OEM-A36-31 | MAXXECUSTREE-C1-B2 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W28 | OEM-A36-8 | MAXXECUSTREE-C1-B3 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W29 | OEM-A36-12 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 1 port (#10) | — | |
| W30 | OEM-A36-14 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 1 direct (#1) | — | |
| W31 | OEM-A36-22 | MAXXECUSTREE-C1-M1 | 0.5 | no route | Injector 2 port (#20) | — | |
| W32 | OEM-A36-25 | MAXXECUSTREE-C1-M2 | 0.5 | no route | Injector 2 direct (#2) | — | |
| W33 | OEM-A36-24 | MAXXECUSTREE-C1-M3 | 0.5 | no route | Injector 3 direct (#3) | — | |
| W34 | OEM-A36-32 | MAXXECUSTREE-C1-L3 | 0.5 | no route | Injector 3 port (#30) | — | |
| W35 | OEM-A36-13 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 4 port (#40) | — | |
| W36 | OEM-A36-23 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 4 direct (#4) | — | |
| W37 | OEM-A33-28 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE2) | — | |
| W38 | OEM-A34-29 | SP-SHD-1 | 0.5 | no route | Shield ground (EKNK) | — | |
| W39 | OEM-A34-30 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE1) | — | |
| W40 | OEM-A34-35 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE3) | — | |
| W41 | SP-SHD-1 | MAXXECUSTREE-C1-E3 | 0.5 | no route | GND Shield | — | |
| W42 | OEM-A35-13 | MAXXECUSTREE-C1-B4 | 0.5 | no route | EFI main relay 1 (SSHUT) | — | |
| W43 | OEM-A35-12 | MAXXECUSTREE-C1-C4 | 0.5 | no route | Cooling fan relay 2 (FAN2) | — | |
| W44 | OEM-A35-11 | MAXXECUSTREE-C1-D4 | 0.5 | no route | Cooling fan relay 3 (FAN1) | — | |
| W45 | OEM-A33-20 | MAXXECUSTREE-C1-A4 | 0.5 | no route | Blower relay (HB) | — | |
| W46 | OEM-A34-5 | MAXXECUSTREE-C1-D1 | 0.5 | no route | A/F ratio sensor heater (HA1A) | — | |
| W47 | OEM-A33-22 | MAXXECUSTREE-C1-J3 | 0.5 | no route | Mass air flow (VG) | — | |
| W48 | OEM-A34-20 | MAXXECUSTREE-C1-J4 | 0.5 | no route | Manifold absolute pressure (PIM) | — | |
| W49 | OEM-A35-31 | MAXXECUSTREE-C1-G2 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W50 | OEM-A36-30 | MAXXECUSTREE-C1-J1 | 0.5 | no route | Engine coolant temperature (THW) | — | |
| W51 | OEM-A33-12 | MAXXECUSTREE-C1-J2 | 0.5 | no route | Intake air temperature (THA, in MAF) | — | |
| W52 | OEM-A36-20 | MAXXECUSTREE-C1-F1 | 0.5 | no route | Oil temperature (OT) | — | |
| W53 | OEM-A33-14 | MAXXECUSTREE-C1-K3 | 0.5 | no route | Starter signal (STSW2) | — | |
| W54 | OEM-A33-15 | MAXXECUSTREE-C1-K4 | 0.5 | no route | Clutch switch (CLSW) | — | |
| W55 | OEM-A33-19 | MAXXECUSTREE-C1-E1 | 0.5 | no route | CAN high (CANH) | — | |
| W56 | OEM-A33-18 | MAXXECUSTREE-C1-E2 | 0.5 | no route | CAN low (CANL) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (14)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | DBW_SENSOR_INPUT | tps | Only 1 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| error | NET_MERGED | MAXXECUSTREE-C1-K1 + OEM-A36-12 + OEM-A36-13 | 2 different OEM functions share one net: OEM-A36-12 Injector 1 port (#10); OEM-A36-13 Injector 4 port (#40) |
| error | NET_MERGED | MAXXECUSTREE-C1-K2 + OEM-A36-14 + OEM-A36-23 | 2 different OEM functions share one net: OEM-A36-14 Injector 1 direct (#1); OEM-A36-23 Injector 4 direct (#4) |
| error | REQUIRED_UNMAPPED | OEM-A35-23 | Required OEM function "Accelerator pedal position (VPA)" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A36-1 | Required OEM function "Throttle actuator motor - (M-)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A36-18 | Required OEM function "Throttle position (VTA1)" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A36-2 | Required OEM function "Throttle actuator motor + (M+)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A36-28 | Required OEM function "Throttle position 2 (VTA2)" (analog_in) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | MAXXECUSTREE-C1-A4 | MAXXECUSTREE-C1-A4 "GPO 8/TACHO" drives OEM-A33-20 Blower relay (HB) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUSTREE-C1-B4 | MAXXECUSTREE-C1-B4 "GPO 1" drives OEM-A35-13 EFI main relay 1 (SSHUT) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUSTREE-C1-C4 | MAXXECUSTREE-C1-C4 "GPO 2" drives OEM-A35-12 Cooling fan relay 2 (FAN2) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUSTREE-C1-D4 | MAXXECUSTREE-C1-D4 "GPO 3" drives OEM-A35-11 Cooling fan relay 3 (FAN1) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NO_FUEL_PUMP | fuel pump | This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car. |
| info | UNMAPPED | OEM | 36 optional OEM pins are not mapped: OEM-A33-16 Neutral switch (NSW); OEM-A33-17 Starter signal (STSW2); OEM-A33-27 Ignition switch sense (IGSW, IG2 relay); OEM-A33-3 Stop light switch (ST1-); OEM-A33-7 Stop light switch (STP); OEM-A33-8 A/C pressure sensor (ACP); OEM-A34-11 DI injector confirmation (IJF1); OEM-A34-13 High-pressure fuel pump spill valve (FPF); OEM-A34-15 VVT cam sensor intake bank 2 (VV2+); OEM-A34-17 Knock sensor 2 (KNK2); OEM-A34-18 A/F ratio sensor (A1A-); OEM-A34-19 A/F ratio sensor (A1A+); OEM-A34-21 Heated oxygen sensor (OX1B, rear); OEM-A34-25 VVT cam sensor exhaust bank 2 (EV2+); OEM-A34-26 VVT cam sensor intake bank 1 (VV1+); OEM-A34-28 Knock sensor 1 (KNK1); OEM-A34-31 DI injector confirmation (IJF2); OEM-A34-32 High-pressure fuel pump spill valve (FPD); OEM-A34-9 Fuel pressure sensor (PR); OEM-A35-1 Canister vent valve (VPMP); OEM-A35-10 Fuel pump control monitor (DI); OEM-A35-15 Tachometer output (TACH); OEM-A35-17 ETCS relay (MCR); OEM-A35-19 Fuel pump control (FPC); OEM-A35-20 Canister pressure sensor (PPMP); OEM-A35-26 Starter signal (STA); OEM-A35-35 A/C clutch relay (AC); OEM-A35-5 Injector relay (IREL); OEM-A35-7 ETCS relay (+BM); OEM-A35-8 Leak detection pump (MPMP); OEM-A36-11 Purge valve (PRG); OEM-A36-16 OCV intake bank 2 (OC2); OEM-A36-17 OCV intake bank 1 (OC1); OEM-A36-5 OCV exhaust bank 2 (OE2); OEM-A36-6 Heated oxygen sensor heater (HT1B); OEM-A36-7 OCV exhaust bank 1 (OE1) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-A33-2 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - No knock input; the stock knock sensor would be unused - Trigger pattern for Toyota FA20 not checked yet Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-A36 1: Throttle actuator motor - (M-): no free hbridge on MaxxECU MaxxECU STREET - OEM-A36 2: Throttle actuator motor + (M+): no free hbridge on MaxxECU MaxxECU STREET - OEM-A36 28: Throttle position 2 (VTA2): no free tps/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A35 23: Accelerator pedal position (VPA): no free tps/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A36 18: Throttle position (VTA1): no free tps/analog_0_5 on MaxxECU MaxxECU STREET Not wired: - OEM-A33 2: Battery constant (BATT, memory): MaxxECU MaxxECU STREET has no battery-constant input; not needed - OEM-A34 26: VVT cam sensor intake bank 1 (VV1+): no free cam_hall/cam_vr/frequency_in input on MaxxECU MaxxECU STREET - OEM-A34 25: VVT cam sensor exhaust bank 2 (EV2+): no free cam_hall/cam_vr/frequency_in input on MaxxECU MaxxECU STREET - OEM-A34 15: VVT cam sensor intake bank 2 (VV2+): no free cam_hall/cam_vr/frequency_in input on MaxxECU MaxxECU STREET - OEM-A34 28: Knock sensor 1 (KNK1): no free knock input on MaxxECU MaxxECU STREET - OEM-A34 17: Knock sensor 2 (KNK2): no free knock input on MaxxECU MaxxECU STREET - OEM-A33 27: Ignition switch sense (IGSW, IG2 relay): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MaxxECU MaxxECU STREET has no dedicated key-on input - OEM-A35 17: ETCS relay (MCR): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MaxxECU MaxxECU STREET - OEM-A35 35: A/C clutch relay (AC): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MaxxECU MaxxECU STREET - OEM-A35 5: Injector relay (IREL): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MaxxECU MaxxECU STREET - OEM-A35 7: ETCS relay (+BM): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MaxxECU MaxxECU STREET - OEM-A36 6: Heated oxygen sensor heater (HT1B): no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU STREET - OEM-A36 17: OCV intake bank 1 (OC1): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A36 7: OCV exhaust bank 1 (OE1): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A36 16: OCV intake bank 2 (OC2): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A36 5: OCV exhaust bank 2 (OE2): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A34 13: High-pressure fuel pump spill valve (FPF): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A34 32: High-pressure fuel pump spill valve (FPD): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A35 1: Canister vent valve (VPMP): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A35 19: Fuel pump control (FPC): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A35 8: Leak detection pump (MPMP): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A36 11: Purge valve (PRG): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-A35 15: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU STREET - OEM-A34 21: Heated oxygen sensor (OX1B, rear): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A33 8: A/C pressure sensor (ACP): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A34 11: DI injector confirmation (IJF1): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A34 31: DI injector confirmation (IJF2): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A34 9: Fuel pressure sensor (PR): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A35 10: Fuel pump control monitor (DI): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A35 20: Canister pressure sensor (PPMP): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-A33 16: Neutral switch (NSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A33 17: Starter signal (STSW2): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A33 3: Stop light switch (ST1-): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A33 7: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A35 26: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-A34 18: A/F ratio sensor (A1A-): not classified in the library; wire by hand - OEM-A34 19: A/F ratio sensor (A1A+): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO) | http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html | archive | 2026-10-05 | 2e37b6814690 |
| 4 | vendor_doc | Scion FR-S / Toyota 86 Repair Manual (2013) — FA20 ECM terminal pinout (SFI system) | https://gt86.me/images/0/09/2013_Scion_FR-S_Repair_Manual.pdf | — | — | — |