Lexus LS400 1989-97 (1UZ-FE non-VVTi) → Haltech Elite 2500 HT-151300 (auto)
Lexus LS400 1989-97 (1UZ-FE non-VVTi) — Haltech — Elite 2500
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-12
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 | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 57 wires · 9 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-A-12 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | ELITE2500-A-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | ELITE2500-B-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-22 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-D-13 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-D-26 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | ELITE2500-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | ELITE2500-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-C-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-C-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | ELITE2500-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | ELITE2500-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | ELITE2500-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-11 | ELITE2500-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C-8 | ELITE2500-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | ELITE2500-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C-7 | ELITE2500-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | ELITE2500-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-C-6 | ELITE2500-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C-3 | ELITE2500-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C-11 | ELITE2500-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C-5 | ELITE2500-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C-13 | ELITE2500-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-D-12 | ELITE2500-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-D-11 | ELITE2500-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-D-24 | ELITE2500-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-D-25 | ELITE2500-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-1 | ELITE2500-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-4 | ELITE2500-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-5 | ELITE2500-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-4 | ELITE2500-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-6 | ELITE2500-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-7 | ELITE2500-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-D-19 | ELITE2500-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-D-20 | ELITE2500-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-D-17 | ELITE2500-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-D-8 | ELITE2500-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-D-7 | ELITE2500-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-D-6 | ELITE2500-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-5 | ELITE2500-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B-5 | ELITE2500-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-8 | ELITE2500-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-D-21 | ELITE2500-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-D-22 | ELITE2500-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-17 | ELITE2500-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-6 | ELITE2500-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B-11 | ELITE2500-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B-24 | ELITE2500-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-16 | ELITE2500-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-7 | ELITE2500-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C-2 | ELITE2500-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-C-10 | ELITE2500-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-19 | ELITE2500-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-9 | ELITE2500-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A-20 | ELITE2500-A-14 | 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 | ELITE2500-A-26 | ELITE2500-A-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | ELITE2500-A-26 | ELITE2500-B-14 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | ELITE2500-A-9 | ELITE2500-A-10 | open (OL) | 5 V sensor reference must not touch power ground | |
| 4 | ELITE2500-A-9 | ELITE2500-B-14 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 5 | ELITE2500-A-9 | ELITE2500-A-26 | open (OL) | 5 V sensor reference must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
ELITE2500-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | DPO 2 | — | W36 | — | 0.5 | OEM-D-19 | — | — | — |
| 10 | Battery ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +8V DC | — | — | — | — | — | — | — | — |
| 13 | 12V ignition input | — | W30 | — | 0.5 | OEM-A-1 | — | — | — |
| 14 | AVI 10 (TPS) | — | W57 | — | 0.5 | OEM-A-20 | — | — | — |
| 15 | AVI 9 (MAP) | — | W56 | — | 0.5 | OEM-A-9 | — | — | — |
| 16 | AVI 2 | — | W47 | — | 0.5 | OEM-A-17 | — | — | — |
| 17 | AVI 3 | — | W48 | — | 0.5 | OEM-A-6 | — | — | — |
| 18 | DPO 1 | — | W35 | — | 0.5 | OEM-B-7 | — | — | — |
| 19 | INJ 1 | — | W26 | — | 0.5 | OEM-D-12 | — | — | — |
| 2 | AVI 4 | — | W49 | — | 0.5 | OEM-B-11 | — | — | — |
| 20 | INJ 2 | — | W27 | — | 0.5 | OEM-D-11 | — | — | — |
| 21 | INJ 3 | — | W28 | — | 0.5 | OEM-D-24 | — | — | — |
| 22 | INJ 4 | — | W29 | — | 0.5 | OEM-D-25 | — | — | — |
| 23 | DPO 3 | — | W37 | — | 0.5 | OEM-D-20 | — | — | — |
| 24 | DPO 5 (fuel pump trigger) | — | W34 | — | 0.5 | OEM-B-6 | — | — | — |
| 25 | DPO 6 (ECR OUT) | — | W33 | — | 0.5 | OEM-B-4 | — | — | — |
| 26 | ECU injector power input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | INJ 5 | — | W43 | — | 0.5 | OEM-B-5 | — | — | — |
| 28 | INJ 6 | — | W44 | — | 0.5 | OEM-B-8 | — | — | — |
| 29 | INJ 7 | — | W45 | — | 0.5 | OEM-D-21 | — | — | — |
| 3 | IGN 1 | — | W24 | — | 0.5 | OEM-C-5 | — | — | — |
| 30 | INJ 8 | — | W46 | — | 0.5 | OEM-D-22 | — | — | — |
| 31 | Stepper 1 P1 / DPO | — | W39 | — | 0.5 | OEM-D-8 | — | — | — |
| 32 | Stepper 1 P2 / DPO | — | W40 | — | 0.5 | OEM-D-7 | — | — | — |
| 33 | Stepper 1 P3 / DPO | — | W41 | — | 0.5 | OEM-D-6 | — | — | — |
| 34 | Stepper 1 P4 / DPO | — | W42 | — | 0.5 | OEM-D-5 | — | — | — |
| 4 | IGN 2 | — | W25 | — | 0.5 | OEM-C-13 | — | — | — |
| 5 | IGN 3 | — | — | — | — | — | — | — | — |
| 6 | IGN 4 | — | — | — | — | — | — | — | — |
| 7 | IGN 5 | — | — | — | — | — | — | — | — |
| 8 | IGN 6 | — | — | — | — | — | — | — | — |
| 9 | +5V DC | — | W16 | — | 0.5 | OEM-A-11 | — | — | — |
ELITE2500-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Crank (Trigger) (+) | — | W17 | — | 0.5 | OEM-C-8 | — | — | — |
| 10 | SPI 3 | — | W54 | — | 0.5 | OEM-C-10 | — | — | — |
| 11 | +13.8V ECU supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | AVI 6 (O2 Input 1) | — | W52 | — | 0.5 | OEM-A-7 | — | — | — |
| 13 | AVI 1 (O2 Input 2) | — | W31 | — | 0.5 | OEM-A-4 | — | — | — |
| 14 | Signal ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Signal ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | IGN 7 | — | — | — | — | — | — | — | — |
| 18 | IGN 8 | — | — | — | — | — | — | — | — |
| 19 | DPO 4 | — | W38 | — | 0.5 | OEM-D-17 | — | — | — |
| 2 | Cam (Home) (+) | — | W19 | — | 0.5 | OEM-C-7 | — | — | — |
| 20 | AVI 5 | — | W50 | — | 0.5 | OEM-B-24 | — | — | — |
| 21 | KNOCK 1 | — | W22 | — | 0.5 | OEM-C-3 | — | — | — |
| 22 | KNOCK 2 | — | W23 | — | 0.5 | OEM-C-11 | — | — | — |
| 23 | CAN H | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | — | — | — | — | — | — | — |
| 25 | DBW 1 / DPO | — | — | — | — | — | — | — | — |
| 26 | DBW 2 / DPO | — | — | — | — | — | — | — | — |
| 3 | AVI 7 (Air Temp) | — | W51 | — | 0.5 | OEM-A-16 | — | — | — |
| 4 | AVI 8 (Coolant Temp) | — | W32 | — | 0.5 | OEM-A-5 | — | — | — |
| 5 | Crank (Trigger) (−) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Cam (Home) (−) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | SPI 4 | — | W55 | — | 0.5 | OEM-A-19 | — | — | — |
| 8 | SPI 1 | — | W21 | — | 0.5 | OEM-C-6 | — | — | — |
| 9 | SPI 2 | — | W53 | — | 0.5 | OEM-C-2 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | W30 | — | 0.5 | ELITE2500-A-13 | — | — | — |
| 11 | Sensor supply +5V (VC) | — | W16 | — | 0.5 | ELITE2500-A-9 | — | — | — |
| 12 | EFI main relay (B+) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 13 | EFI main relay (B1+) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Neutral start switch (NSW) | — | — | — | — | — | — | — | — |
| 16 | Intake air temperature (THA) | — | W51 | — | 0.5 | ELITE2500-B-3 | — | — | — |
| 17 | O2 right front (OXR1) | — | W47 | — | 0.5 | ELITE2500-A-16 | — | — | — |
| 18 | Sensor ground (E2) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Vehicle speed (SPD) | — | W55 | — | 0.5 | ELITE2500-B-7 | — | — | — |
| 2 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 20 | Diagnostic test 2 (TE2) | — | W57 | — | 0.5 | ELITE2500-A-14 | — | — | — |
| 22 | Power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Throttle position (VTA1) | — | W31 | — | 0.5 | ELITE2500-B-13 | — | — | — |
| 5 | Coolant temperature (THW) | — | W32 | — | 0.5 | ELITE2500-B-4 | — | — | — |
| 6 | O2 left front (OXL1) | — | W48 | — | 0.5 | ELITE2500-A-17 | — | — | — |
| 7 | EGR temperature sensor | — | W52 | — | 0.5 | ELITE2500-B-12 | — | — | — |
| 8 | Knock/shield (KS) | — | — | — | — | — | — | — | — |
| 9 | Diagnostic test 1 (TE1) | — | W56 | — | 0.5 | ELITE2500-A-15 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | O2 right rear (OXR2) | — | W49 | — | 0.5 | ELITE2500-A-2 | — | — | — |
| 19 | Stop light switch (BK) | — | — | — | — | — | — | — | — |
| 20 | A/T kickdown switch (KD) | — | — | — | — | — | — | — | — |
| 23 | A/C request (AC) | — | — | — | — | — | — | — | — |
| 24 | O2 left rear (OXL2) | — | W50 | — | 0.5 | ELITE2500-B-20 | — | — | — |
| 26 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 4 | EFI main relay control (MREL) | — | W33 | — | 0.5 | ELITE2500-A-25 | — | — | — |
| 5 | Check-engine lamp (W) | — | W43 | — | 0.5 | ELITE2500-A-27 | — | — | — |
| 6 | Fuel pump relay (FPR) | — | W34 | — | 0.5 | ELITE2500-A-24 | — | — | — |
| 7 | A/C clutch relay (ACMG) | — | W35 | — | 0.5 | ELITE2500-A-18 | — | — | — |
| 8 | Fuel pump control (FC) | — | W44 | — | 0.5 | ELITE2500-A-28 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TPS idle switch (IDL) | — | — | — | — | — | — | — | — |
| 10 | Igniter 2 feedback (IGF2) | — | W54 | — | 0.5 | ELITE2500-B-10 | — | — | — |
| 11 | Knock sensor 2 (KNK2) | — | W23 | — | 0.5 | ELITE2500-B-22 | — | — | — |
| 12 | Check connector VF2 | — | — | — | — | — | — | — | — |
| 13 | Ignition 2 (IGT2) | — | W25 | — | 0.5 | ELITE2500-A-4 | — | — | — |
| 15 | Cam sensor ground (G-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank sensor - (NE-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Igniter 1 feedback (IGF1) | — | W53 | — | 0.5 | ELITE2500-B-9 | — | — | — |
| 3 | Knock sensor 1 (KNK1) | — | W22 | — | 0.5 | ELITE2500-B-21 | — | — | — |
| 4 | Check connector VF1 | — | — | — | — | — | — | — | — |
| 5 | Ignition 1 (IGT1) | — | W24 | — | 0.5 | ELITE2500-A-3 | — | — | — |
| 6 | Cam sensor 2 + (G2+) | — | W21 | — | 0.5 | ELITE2500-B-8 | — | — | — |
| 7 | Cam sensor 1 + (G1+) | — | W19 | — | 0.5 | ELITE2500-B-2 | — | — | — |
| 8 | Crank sensor + (NE+) | — | W17 | — | 0.5 | ELITE2500-B-1 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Injector 2&8 (#20) | — | W27 | — | 0.5 | ELITE2500-A-20 | — | — | — |
| 12 | Injector 1&7 (#10) | — | W26 | — | 0.5 | ELITE2500-A-19 | — | — | — |
| 13 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 17 | Cold start injector 1 (STJ1) | — | W38 | — | 0.5 | ELITE2500-B-19 | — | — | — |
| 19 | O2 heater 2 (HT2) | — | W36 | — | 0.5 | ELITE2500-A-1 | — | — | — |
| 20 | O2 heater 1 (HT1) | — | W37 | — | 0.5 | ELITE2500-A-23 | — | — | — |
| 21 | EGR solenoid | — | W45 | — | 0.5 | ELITE2500-A-29 | — | — | — |
| 22 | Fuel pressure-up VSV (PR) | — | W46 | — | 0.5 | ELITE2500-A-30 | — | — | — |
| 24 | Injector 3&5 (#40) | — | W28 | — | 0.5 | ELITE2500-A-21 | — | — | — |
| 25 | Injector 4&6 (#30) | — | W29 | — | 0.5 | ELITE2500-A-22 | — | — | — |
| 26 | Power ground (E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Cold start injector (STJ) | — | — | — | — | — | — | — | — |
| 5 | ISC stepper coil 4 (ISC4) | — | W42 | — | 0.5 | ELITE2500-A-34 | — | — | — |
| 6 | ISC stepper coil 3 (ISC3) | — | W41 | — | 0.5 | ELITE2500-A-33 | — | — | — |
| 7 | ISC stepper coil 2 (ISC2) | — | W40 | — | 0.5 | ELITE2500-A-32 | — | — | — |
| 8 | ISC stepper coil 1 (ISC1) | — | W39 | — | 0.5 | ELITE2500-A-31 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.5 | OEM-A-18 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-C-15 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-C-16 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | ELITE2500-B-14 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | ELITE2500-B-15 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | ELITE2500-B-16 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | ELITE2500-B-5 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | ELITE2500-B-6 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | ELITE2500-A-26 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | ELITE2500-B-11 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-22 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-D-13 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-D-26 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | ELITE2500-A-10 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ELITE2500-A-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Ignition switch (IGSW) | digital_in | ELITE2500-A-13 | 12V ignition input | digital_in | single_source | |
| OEM-A-11 | Sensor supply +5V (VC) | vref | ELITE2500-A-9 | +5V DC | vref | single_source | |
| OEM-A-12 | EFI main relay (B+) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | single_source | |
| OEM-A-13 | EFI main relay (B1+) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | single_source | |
| OEM-A-14 | Neutral start switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-A-16 | Intake air temperature (THA) | temp_in | ELITE2500-B-3 | AVI 7 (Air Temp) | analog_in | single_source | |
| OEM-A-17 | O2 right front (OXR1) | lambda_nb_in | ELITE2500-A-16 | AVI 2 | analog_in | single_source | |
| OEM-A-18 | Sensor ground (E2) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-A-19 | Vehicle speed (SPD) | digital_in | ELITE2500-B-7 | SPI 4 | digital_in | single_source | |
| OEM-A-2 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-A-20 | Diagnostic test 2 (TE2) | digital_in | ELITE2500-A-14 | AVI 10 (TPS) | analog_in | single_source | |
| OEM-A-22 | Power ground (E1) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-4 | Throttle position (VTA1) | analog_in | ELITE2500-B-13 | AVI 1 (O2 Input 2) | analog_in | single_source | |
| OEM-A-5 | Coolant temperature (THW) | temp_in | ELITE2500-B-4 | AVI 8 (Coolant Temp) | analog_in | single_source | |
| OEM-A-6 | O2 left front (OXL1) | lambda_nb_in | ELITE2500-A-17 | AVI 3 | analog_in | single_source | |
| OEM-A-7 | EGR temperature sensor | temp_in | ELITE2500-B-12 | AVI 6 (O2 Input 1) | analog_in | single_source | |
| OEM-A-8 | Knock/shield (KS) | knock_in | — | — | — | single_source | |
| OEM-A-9 | Diagnostic test 1 (TE1) | digital_in | ELITE2500-A-15 | AVI 9 (MAP) | analog_in | single_source | |
| OEM-B-11 | O2 right rear (OXR2) | lambda_nb_in | ELITE2500-A-2 | AVI 4 | analog_in | single_source | |
| OEM-B-19 | Stop light switch (BK) | digital_in | — | — | — | single_source | |
| OEM-B-20 | A/T kickdown switch (KD) | digital_in | — | — | — | single_source | |
| OEM-B-23 | A/C request (AC) | digital_in | — | — | — | single_source | |
| OEM-B-24 | O2 left rear (OXL2) | lambda_nb_in | ELITE2500-B-20 | AVI 5 | analog_in | single_source | |
| OEM-B-26 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-B-4 | EFI main relay control (MREL) | low_side_out | ELITE2500-A-25 | DPO 6 (ECR OUT) | low_side_out | single_source | |
| OEM-B-5 | Check-engine lamp (W) | low_side_out | ELITE2500-A-27 | INJ 5 | injector_out | single_source | |
| OEM-B-6 | Fuel pump relay (FPR) | low_side_out | ELITE2500-A-24 | DPO 5 (fuel pump trigger) | low_side_out | single_source | |
| OEM-B-7 | A/C clutch relay (ACMG) | low_side_out | ELITE2500-A-18 | DPO 1 | low_side_out | single_source | |
| OEM-B-8 | Fuel pump control (FC) | low_side_out | ELITE2500-A-28 | INJ 6 | injector_out | single_source | |
| OEM-C-1 | TPS idle switch (IDL) | digital_in | — | — | — | single_source | |
| OEM-C-10 | Igniter 2 feedback (IGF2) | digital_in | ELITE2500-B-10 | SPI 3 | digital_in | single_source | |
| OEM-C-11 | Knock sensor 2 (KNK2) | knock_in | ELITE2500-B-22 | KNOCK 2 | knock_in | single_source | |
| OEM-C-12 | Check connector VF2 | analog_out | — | — | — | single_source | |
| OEM-C-13 | Ignition 2 (IGT2) | ignition_out | ELITE2500-A-4 | IGN 2 | ignition_out | single_source | |
| OEM-C-15 | Cam sensor ground (G-) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-C-16 | Crank sensor - (NE-) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-C-2 | Igniter 1 feedback (IGF1) | digital_in | ELITE2500-B-9 | SPI 2 | digital_in | single_source | |
| OEM-C-3 | Knock sensor 1 (KNK1) | knock_in | ELITE2500-B-21 | KNOCK 1 | knock_in | single_source | |
| OEM-C-4 | Check connector VF1 | analog_out | — | — | — | single_source | |
| OEM-C-5 | Ignition 1 (IGT1) | ignition_out | ELITE2500-A-3 | IGN 1 | ignition_out | single_source | |
| OEM-C-6 | Cam sensor 2 + (G2+) | trigger_in | ELITE2500-B-8 | SPI 1 | digital_in | single_source | |
| OEM-C-7 | Cam sensor 1 + (G1+) | trigger_in | ELITE2500-B-2 | Cam (Home) (+) | trigger_in | single_source | |
| OEM-C-8 | Crank sensor + (NE+) | trigger_in | ELITE2500-B-1 | Crank (Trigger) (+) | trigger_in | single_source | |
| OEM-D-11 | Injector 2&8 (#20) | injector_out | ELITE2500-A-20 | INJ 2 | injector_out | single_source | |
| OEM-D-12 | Injector 1&7 (#10) | injector_out | ELITE2500-A-19 | INJ 1 | injector_out | single_source | |
| OEM-D-13 | Power ground (E01) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-D-17 | Cold start injector 1 (STJ1) | low_side_out | ELITE2500-B-19 | DPO 4 | low_side_out | single_source | |
| OEM-D-19 | O2 heater 2 (HT2) | low_side_out | ELITE2500-A-1 | DPO 2 | low_side_out | single_source | |
| OEM-D-20 | O2 heater 1 (HT1) | low_side_out | ELITE2500-A-23 | DPO 3 | low_side_out | single_source | |
| OEM-D-21 | EGR solenoid | low_side_out | ELITE2500-A-29 | INJ 7 | injector_out | single_source | |
| OEM-D-22 | Fuel pressure-up VSV (PR) | low_side_out | ELITE2500-A-30 | INJ 8 | injector_out | single_source | |
| OEM-D-24 | Injector 3&5 (#40) | injector_out | ELITE2500-A-21 | INJ 3 | injector_out | single_source | |
| OEM-D-25 | Injector 4&6 (#30) | injector_out | ELITE2500-A-22 | INJ 4 | injector_out | single_source | |
| OEM-D-26 | Power ground (E02) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-D-4 | Cold start injector (STJ) | low_side_out | — | — | — | single_source | |
| OEM-D-5 | ISC stepper coil 4 (ISC4) | low_side_out | ELITE2500-A-34 | Stepper 1 P4 / DPO | switch_out | single_source | |
| OEM-D-6 | ISC stepper coil 3 (ISC3) | low_side_out | ELITE2500-A-33 | Stepper 1 P3 / DPO | switch_out | single_source | |
| OEM-D-7 | ISC stepper coil 2 (ISC2) | low_side_out | ELITE2500-A-32 | Stepper 1 P2 / DPO | switch_out | single_source | |
| OEM-D-8 | ISC stepper coil 1 (ISC1) | low_side_out | ELITE2500-A-31 | Stepper 1 P1 / DPO | switch_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-12 | SP-14V-1 | 0.85 | no route | EFI main relay (B+) | — | |
| W2 | OEM-A-13 | SP-14V-1 | 0.85 | no route | EFI main relay (B1+) | — | |
| W3 | SP-14V-1 | ELITE2500-A-26 | 0.85 | no route | ECU injector power input | — | |
| W4 | SP-14V-1 | ELITE2500-B-11 | 0.85 | no route | +13.8V ECU supply | — | |
| W5 | OEM-A-22 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W6 | OEM-D-13 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-D-26 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W8 | SP-GND-1 | ELITE2500-A-10 | 0.85 | no route | Battery ground | — | |
| W9 | SP-GND-1 | ELITE2500-A-11 | 0.85 | no route | Battery ground | — | |
| W10 | OEM-A-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W11 | OEM-C-15 | SP-0V-1 | 0.5 | no route | Cam sensor ground (G-) | — | |
| W12 | OEM-C-16 | SP-0V-1 | 0.5 | no route | Crank sensor - (NE-) | — | |
| W13 | SP-0V-1 | ELITE2500-B-14 | 0.5 | no route | Signal ground | — | |
| W14 | SP-0V-1 | ELITE2500-B-15 | 0.5 | no route | Signal ground | — | |
| W15 | SP-0V-1 | ELITE2500-B-16 | 0.5 | no route | Signal ground | — | |
| W16 | OEM-A-11 | ELITE2500-A-9 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W17 | OEM-C-8 | ELITE2500-B-1 | 0.5 | no route | Crank sensor + (NE+) | — | |
| W18 | SP-0V-1 | ELITE2500-B-5 | 0.5 | no route | Crank (Trigger) (−) | — | |
| W19 | OEM-C-7 | ELITE2500-B-2 | 0.5 | no route | Cam sensor 1 + (G1+) | — | |
| W20 | SP-0V-1 | ELITE2500-B-6 | 0.5 | no route | Cam (Home) (−) | — | |
| W21 | OEM-C-6 | ELITE2500-B-8 | 0.5 | no route | Cam sensor 2 + (G2+) | — | |
| W22 | OEM-C-3 | ELITE2500-B-21 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W23 | OEM-C-11 | ELITE2500-B-22 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W24 | OEM-C-5 | ELITE2500-A-3 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W25 | OEM-C-13 | ELITE2500-A-4 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W26 | OEM-D-12 | ELITE2500-A-19 | 0.5 | no route | Injector 1&7 (#10) | — | |
| W27 | OEM-D-11 | ELITE2500-A-20 | 0.5 | no route | Injector 2&8 (#20) | — | |
| W28 | OEM-D-24 | ELITE2500-A-21 | 0.5 | no route | Injector 3&5 (#40) | — | |
| W29 | OEM-D-25 | ELITE2500-A-22 | 0.5 | no route | Injector 4&6 (#30) | — | |
| W30 | OEM-A-1 | ELITE2500-A-13 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W31 | OEM-A-4 | ELITE2500-B-13 | 0.5 | no route | Throttle position (VTA1) | — | |
| W32 | OEM-A-5 | ELITE2500-B-4 | 0.5 | no route | Coolant temperature (THW) | — | |
| W33 | OEM-B-4 | ELITE2500-A-25 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W34 | OEM-B-6 | ELITE2500-A-24 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W35 | OEM-B-7 | ELITE2500-A-18 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W36 | OEM-D-19 | ELITE2500-A-1 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W37 | OEM-D-20 | ELITE2500-A-23 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W38 | OEM-D-17 | ELITE2500-B-19 | 0.5 | no route | Cold start injector 1 (STJ1) | — | |
| W39 | OEM-D-8 | ELITE2500-A-31 | 0.5 | no route | ISC stepper coil 1 (ISC1) | — | |
| W40 | OEM-D-7 | ELITE2500-A-32 | 0.5 | no route | ISC stepper coil 2 (ISC2) | — | |
| W41 | OEM-D-6 | ELITE2500-A-33 | 0.5 | no route | ISC stepper coil 3 (ISC3) | — | |
| W42 | OEM-D-5 | ELITE2500-A-34 | 0.5 | no route | ISC stepper coil 4 (ISC4) | — | |
| W43 | OEM-B-5 | ELITE2500-A-27 | 0.5 | no route | Check-engine lamp (W) | — | |
| W44 | OEM-B-8 | ELITE2500-A-28 | 0.5 | no route | Fuel pump control (FC) | — | |
| W45 | OEM-D-21 | ELITE2500-A-29 | 0.5 | no route | EGR solenoid | — | |
| W46 | OEM-D-22 | ELITE2500-A-30 | 0.5 | no route | Fuel pressure-up VSV (PR) | — | |
| W47 | OEM-A-17 | ELITE2500-A-16 | 0.5 | no route | O2 right front (OXR1) | — | |
| W48 | OEM-A-6 | ELITE2500-A-17 | 0.5 | no route | O2 left front (OXL1) | — | |
| W49 | OEM-B-11 | ELITE2500-A-2 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W50 | OEM-B-24 | ELITE2500-B-20 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W51 | OEM-A-16 | ELITE2500-B-3 | 0.5 | no route | Intake air temperature (THA) | — | |
| W52 | OEM-A-7 | ELITE2500-B-12 | 0.5 | no route | EGR temperature sensor | — | |
| W53 | OEM-C-2 | ELITE2500-B-9 | 0.5 | no route | Igniter 1 feedback (IGF1) | — | |
| W54 | OEM-C-10 | ELITE2500-B-10 | 0.5 | no route | Igniter 2 feedback (IGF2) | — | |
| W55 | OEM-A-19 | ELITE2500-B-7 | 0.5 | no route | Vehicle speed (SPD) | — | |
| W56 | OEM-A-9 | ELITE2500-A-15 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W57 | OEM-A-20 | ELITE2500-A-14 | 0.5 | no route | Diagnostic test 2 (TE2) | — |
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 (16)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-A-20 ↔ ELITE2500-A-14 | OEM-A-20 "Diagnostic test 2 (TE2)" [digital_in] is wired to ELITE2500-A-14 "AVI 10 (TPS)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-A-9 ↔ ELITE2500-A-15 | OEM-A-9 "Diagnostic test 1 (TE1)" [digital_in] is wired to ELITE2500-A-15 "AVI 9 (MAP)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C-6 ↔ ELITE2500-B-8 | OEM-C-6 "Cam sensor 2 + (G2+)" [trigger_in] is wired to ELITE2500-B-8 "SPI 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| info | NET_FAMILY | OEM-A-16 ↔ ELITE2500-B-3 | OEM-A-16 "Intake air temperature (THA)" [temp_in] is wired to ELITE2500-B-3 "AVI 7 (Air Temp)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-5 ↔ ELITE2500-B-4 | OEM-A-5 "Coolant temperature (THW)" [temp_in] is wired to ELITE2500-B-4 "AVI 8 (Coolant Temp)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-7 ↔ ELITE2500-B-12 | OEM-A-7 "EGR temperature sensor" [temp_in] is wired to ELITE2500-B-12 "AVI 6 (O2 Input 1)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-5 ↔ ELITE2500-A-27 | OEM-B-5 "Check-engine lamp (W)" [low_side_out] is wired to ELITE2500-A-27 "INJ 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-8 ↔ ELITE2500-A-28 | OEM-B-8 "Fuel pump control (FC)" [low_side_out] is wired to ELITE2500-A-28 "INJ 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C-16 ↔ ELITE2500-B-6 | OEM-C-16 "Crank sensor - (NE-)" [sensor_ground] is wired to ELITE2500-B-6 "Cam (Home) (−)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-D-21 ↔ ELITE2500-A-29 | OEM-D-21 "EGR solenoid" [low_side_out] is wired to ELITE2500-A-29 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-22 ↔ ELITE2500-A-30 | OEM-D-22 "Fuel pressure-up VSV (PR)" [low_side_out] is wired to ELITE2500-A-30 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-5 ↔ ELITE2500-A-34 | OEM-D-5 "ISC stepper coil 4 (ISC4)" [low_side_out] is wired to ELITE2500-A-34 "Stepper 1 P4 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-6 ↔ ELITE2500-A-33 | OEM-D-6 "ISC stepper coil 3 (ISC3)" [low_side_out] is wired to ELITE2500-A-33 "Stepper 1 P3 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-7 ↔ ELITE2500-A-32 | OEM-D-7 "ISC stepper coil 2 (ISC2)" [low_side_out] is wired to ELITE2500-A-32 "Stepper 1 P2 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-8 ↔ ELITE2500-A-31 | OEM-D-8 "ISC stepper coil 1 (ISC1)" [low_side_out] is wired to ELITE2500-A-31 "Stepper 1 P1 / DPO" [switch_out]. Configure this output as low side. |
| info | UNMAPPED | OEM | 10 optional OEM pins are not mapped: OEM-A-14 Neutral start switch (NSW); OEM-A-2 Starter signal (STA); OEM-A-8 Knock/shield (KS); OEM-B-19 Stop light switch (BK); OEM-B-20 A/T kickdown switch (KD); OEM-B-23 A/C request (AC); OEM-C-1 TPS idle switch (IDL); OEM-C-12 Check connector VF2; OEM-C-4 Check connector VF1; OEM-D-4 Cold start injector (STJ) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-B-26 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Not wired: - OEM-B 26: Battery constant (BATT): Haltech Elite 2500 has no battery-constant input; not needed - OEM-A 8: Knock/shield (KS): no free knock input on Haltech Elite 2500 - OEM-D 4: Cold start injector (STJ): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Elite 2500 - OEM-A 14: Neutral start switch (NSW): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-A 2: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-B 19: Stop light switch (BK): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-B 20: A/T kickdown switch (KD): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-B 23: A/C request (AC): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 1: TPS idle switch (IDL): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 4: Check connector VF1: no free analog_out on Haltech Elite 2500 - OEM-C 12: Check connector VF2: no free analog_out on Haltech Elite 2500
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Haltech Elite 2500 (HT-151300) spec sheet | https://joeblospeedshop.com/wp-content/uploads/2023/11/HT-151300_SPEC-SHEET-2500-ELITE.pdf | archive | 2026-10-05 | c97da78cb851 |
| 4 | vendor_doc | Haltech Elite 2500 — 26-pin connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-26-pin-elite2500 | archive | 2026-10-05 | ea6fd4d27ac7 |
| 4 | vendor_doc | Haltech Elite 2500 — 34-pin main connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-34-pin-elite2500 | archive | 2026-10-05 | 4e633dff8340 |
| 2 | community_copy | Lextreme: Adaptronic install for 1UZ-FE (Lexus LS400/SC400) — 4-plug A/B/C/D ECU pin table (1992 LS400) | https://www.lextreme.com/installation-of-an-adaptronic-ecu-for-a-lexus-ls400-sc400-1uzfe-engine/ | — | — | — |