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.
100%
Stock ECU being replaced
Ignition power 2
Ignition power 1
GND
GND
MAXXECUSTREE-C1-H4 HOME
MAXXECUSTREE-C1-H3 TRIGGER
GND
GND
11–12 no data
MAXXECUSTREE-C1-B3 IGN 4
MAXXECUSTREE-C1-B2 IGN 3
MAXXECUSTREE-C1-A3 IGN 2
MAXXECUSTREE-C1-A2 IGN 1
17 no data
MAXXECUSTREE-C1-K3 DIN 1
19 no data
5V ref
5V ref
22 no data
0V sensor
0V sensor
MAXXECUSTREE-C1-G2 TPS/AIN
MAXXECUSTREE-C1-J4 AIN 4 (0-5V)
27 no data
29 no data
MAXXECUSTREE-C1-J3 AIN 3 (0-5V)
OEM-A
Stock ECU being replaced
2Ignition power 2
3Ignition power 1
4Power ground 2
5Power ground 1
6Cam position sensor (T2)
7Crank position sensor (T1)
8Logic ground 2
9Logic ground 1
11–12 no data
13Ignition coil 4
14Ignition coil 3
15Ignition coil 2
16Ignition coil 1
17 no data
18Vehicle speed sensor
19 no data
20Sensor voltage 2
21Sensor voltage 1
22 no data
23Sensor ground 2
24Sensor ground 1
25Accelerator pedal position B
26Accelerator pedal position A
27 no data
29 no data
30MAP sensor
1 no data
MAXXECUSTREE-C1-M2 INJ 4
MAXXECUSTREE-C1-M1 INJ 3
MAXXECUSTREE-C1-K2 INJ 2
MAXXECUSTREE-C1-K1 INJ 1
RLY1-R-OUT Relay contact output (switched +12 V to load)
7 no data
MAXXECUSTREE-C1-F1 CLT
9 no data
MAXXECUSTREE-C1-K4 DIN 2
12 no data
14 no data
16 no data
MAXXECUSTREE-C1-F2 IAT
22–24 no data
OEM-B
Stock ECU being replaced
1 no data
2Injector 4
3Injector 3
4Injector 2
5Injector 1
6VTEC solenoid
7 no data
8Coolant temp sensor
9 no data
11VTEC oil pressure switch
12 no data
14 no data
16 no data
17Intake air temp sensor
22–24 no data
2–3 no data
5–6 no data
10–14 no data
MAXXECUSTREE-C1-A4 GPO 8/TACHO
16–17 no data
OEM-D
Stock ECU being replaced
2–3 no data
5–6 no data
10–14 no data
15Throttle actuator relay
16–17 no data
MAXXECUSTREE-C1-J1 AIN 1 (temperature)
2 no data
GND
0V sensor
5V ref
6 no data
MAXXECUSTREE-C1-C4 GPO 2
MAXXECUSTREE-C1-L3 INJ 6
10 no data
MAXXECUSTREE-C1-E1 CAN H
MAXXECUSTREE-C1-D1 WBO2 Heater-
MAXXECUSTREE-C1-B4 GPO 1
MAXXECUSTREE-C1-M3 INJ 5
23 no data
MAXXECUSTREE-C1-E2 CAN L
31 no data
OEM-E
Stock ECU being replaced
1Coolant temp sensor 2
2 no data
3Logic ground 3
4Sensor ground 3
5Sensor voltage 3
6 no data
7Main relay control
8A/F sensor heater relay
10 no data
11CAN H
12Radiator fan control
17Fuel pump relay
18A/C clutch relay
23 no data
24CAN L
31 no data
MAXXECUSTREE
MAXXECUSTREE-C1
MAXXECUSTREE
A2IGN 1
A3IGN 2
A4GPO 8/TACHO
B2IGN 3
B3IGN 4
B4GPO 1
C4GPO 2
D1WBO2 Heater-
D4GPO 3
E1CAN H
E2CAN L
F1CLT
F2IAT
G1+5V sensor supply
G2TPS/AIN
H1Sensor GND
H2Trigger GND
H3TRIGGER
H4HOME
J1AIN 1 (temperature)
J3AIN 3 (0-5V)
J4AIN 4 (0-5V)
K1INJ 1
K2INJ 2
K3DIN 1
K4DIN 2
L3INJ 6
L4Engine GND
M1INJ 3
M2INJ 4
M3INJ 5
M4+12V ECU power supply
OEM-A-16 Ignition coil 1
OEM-A-15 Ignition coil 2
OEM-D-15 Throttle actuator relay
OEM-A-14 Ignition coil 3
OEM-A-13 Ignition coil 4
OEM-E-17 Fuel pump relay
OEM-E-7 Main relay control
OEM-E-12 Radiator fan control
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
OEM-E-11 CAN H
OEM-E-24 CAN L
OEM-B-8 Coolant temp sensor
OEM-B-17 Intake air temp sensor
5V ref
OEM-A-25 Accelerator pedal position B
0V sensor
0V sensor
OEM-A-7 Crank position sensor (T1)
OEM-A-6 Cam position sensor (T2)
OEM-E-1 Coolant temp sensor 2
OEM-A-30 MAP sensor
OEM-A-26 Accelerator pedal position A
OEM-B-5 Injector 1
OEM-B-4 Injector 2
OEM-A-18 Vehicle speed sensor
OEM-B-11 VTEC oil pressure switch
OEM-E-8 A/F sensor heater relay
GND
OEM-B-3 Injector 3
OEM-B-2 Injector 4
OEM-E-18 A/C clutch relay
+12V ECU power supply
RLY1
RLY1-R
RLY1
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 3 pins
OEM-B-6 VTEC solenoid
Relay coil positive (switched +12 V)
MAXXECUSTREE-C1-D4 GPO 3
TB
TB-J
TB
GNDThrottle sensor ground
VCCThrottle sensor 5V supply
0V sensor
Throttle sensor 5V supply
SP-GND · 7 pins
SP-14V · 6 pins
SP-0V · 7 pins
SP-5V1 · 6 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
50 / 50 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
| Wire | From | To | Signal | Gauge | Colour | Stripe | Ident | Flags | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — |