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
T12-C2-4 Digital 1
T12-C3-17 Analogue 7
0V sensor
T12-C2-16 Analogue 11
T12-C1-3 PWM 3
Ignition 1 voltage (key hot)
Battery positive voltage (batt hot)
0V sensor
T12-C2-13 Analogue 12
T12-C2-5 Analogue 3
0V sensor
T12-C2-18 Analogue 5
5V ref
5V ref
5V ref
T12-C2-25 Thermistor 2
0V sensor
T12-C2-10 Analogue 1
Ignition 1 voltage (key hot)
0V sensor
T12-C1-5 PWM 1
T12-C3-22 PWM 4
T12-C3-23 PWM 5
5V ref
T12-C3-24 PWM 6
T12-C1-4 PWM 2
T12-C1-22 Injector 10
T12-C3-25 PWM 7
T12-C3-9 Lambda 1 Heater Negative
T12-C3-3 Lambda 2 Heater Negative
T12-C1-8 Injector 11
T12-C3-18 Analogue 8
T12-C2-2 Wheel 1
T12-C2-20 Wheel 2
GND
OEM-X1
Stock ECU being replaced
9Brake switch signal
10HO2S signal, bank 1 sensor 2 (post-cat)
11HO2S low reference, bank 1 sensor 2
12A/C refrigerant pressure signal
17High speed cooling fan relay
19Ignition 1 voltage (key hot)
20Battery positive voltage (batt hot)
23APP sensor low reference
24Fuel tank pressure signal
29Accelerator pedal position (APP) sensor 1 signal
30APP sensor low reference
32Accelerator pedal position (APP) sensor 2 signal
335V reference (fuel tank pressure)
345V reference (A/C pressure)
365V reference (APP sensor)
37Intake air temperature (IAT) signal
38Intake air temperature (IAT) low reference
41Mass air flow (MAF) signal
47Ignition 1 voltage (key hot)
49HO2S low reference, bank 2 sensor 2
50Fuel pump relay control (primary)
51Fuel pump relay control (secondary)
52Starter enable relay control
565V reference (APP sensor)
58Low speed cooling fan relay
59Powertrain relay coil control (main relay)
61EVAP canister vent solenoid
63A/C compressor clutch relay
64HO2S heater low control, bank 2 sensor 2
65HO2S heater low control, bank 1 sensor 2
68Malfunction indicator lamp (MIL)
69HO2S signal, bank 2 sensor 2 (post-cat)
71VSS high signal (manual trans)
72VSS low signal (manual trans)
73Power ground
5V ref
5V ref
T12-C1-7 Motor 1 -
T12-C1-6 Motor 1 +
T12-C3-30 PWM 12
T12-C3-28 PWM 10
T12-C1-21 Injector 9
T12-C3-10 PWM 8
T12-C3-4 PWM 9
T12-C3-29 PWM 11
T12-C1-32 Injector 12
T12-C1-23 Injector 8
T12-C1-16 Injector 5
T12-C1-15 Injector 6
T12-C1-9 Injector 1
T12-C2-7 Thermistor 1
0V sensor
T12-C3-31 Knock 1
T12-C3-32 Knock 2
T12-C1-29 Motor 2 +
T12-C2-8 Digital 2
0V sensor
0V sensor
T12-C1-17 Injector 2
T12-C1-34 Injector 3
T12-C1-25 Injector 4
T12-C1-24 Injector 7
5V ref
5V ref
5V ref
T12-C3-13 Analogue 13
0V sensor
0V sensor
0V sensor
T12-C2-34 Analogue 9
T12-C2-1 Analogue 2
T12-C2-3 Analogue 10
0V sensor
T12-C1-30 Motor 2 -
T12-C2-19 Analogue 6
T12-C2-22 Cam 1
T12-C2-6 Analogue 4
0V sensor
T12-C2-12 Crank
0V sensor
T12-C1-10 Coil 1
T12-C1-19 Coil 8
T12-C1-12 Coil 7
T12-C1-18 Coil 2
T12-C1-27 Coil 6
T12-C1-11 Coil 5
T12-C1-26 Coil 4
T12-C1-1 Coil 3
GND
GND
OEM-X2
Stock ECU being replaced
25V reference (crankshaft sensor)
35V reference (throttle body)
5Throttle actuator motor control 2
6Throttle actuator motor control 1
9Cylinder shutoff solenoid 3 (AFM)
10Cylinder shutoff solenoid 1 (AFM)
11Cylinder shutoff solenoid 4 (AFM)
12HO2S heater low control, bank 1 sensor 1
13HO2S heater low control, bank 2 sensor 1
14Cylinder shutoff solenoid 2 (AFM)
16Camshaft actuator solenoid (VVT)
17Injector 8
18Injector 5
19Injector 6
20Injector 1
21Engine coolant temperature (ECT) signal
22ECT low reference
26Knock sensor 1 signal A
27Knock sensor 1 signal B
32Generator field duty control
33Oil level switch signal
34Oil pressure low reference
35Throttle body low reference
37Injector 2
38Injector 3
39Injector 4
40Injector 7
415V reference (oil pressure)
435V reference (MAP)
445V reference (camshaft sensor)
50Engine oil pressure signal
52Camshaft actuator low reference
53MAP low reference
56HO2S low reference, bank 1 sensor 1
57HO2S signal, bank 1 sensor 1 (pre-cat)
58Manifold absolute pressure (MAP) signal
59HO2S signal, bank 2 sensor 1 (pre-cat)
60HO2S low reference, bank 2 sensor 1
61Charge indicator signal
63Throttle position sensor 2 signal
64Camshaft position signal (4x)
65Throttle position sensor 1 signal
66Camshaft position low reference
68Crankshaft position signal (58x)
69Crankshaft position low reference
70Ignition coil 1 control
71Ignition coil 8 control
72Ignition coil 7 control
73Ignition coil 2 control
74Ignition coil 6 control
75Ignition coil 5 control
76Ignition coil 4 control
77Ignition coil 3 control
78Coil low reference (odd bank)
79Coil low reference (even bank)
T12
T12-C1
T12
1Coil 3
3PWM 3
4PWM 2
5PWM 1
6Motor 1 +
7Motor 1 -
8Injector 11
9Injector 1
10Coil 1
11Coil 5
12Coil 7
13Power Ground 1
14Power Ground 2
15Injector 6
16Injector 5
17Injector 2
18Coil 2
19Coil 8
21Injector 9
22Injector 10
23Injector 8
24Injector 7
25Injector 4
26Coil 4
27Coil 6
29Motor 2 +
30Motor 2 -
31Ignition 12v In
32Injector 12
34Injector 3
OEM-X2-77 Ignition coil 3 control
OEM-X1-17 High speed cooling fan relay
OEM-X1-59 Powertrain relay coil control (main relay)
OEM-X1-50 Fuel pump relay control (primary)
OEM-X2-6 Throttle actuator motor control 1
OEM-X2-5 Throttle actuator motor control 2
OEM-X1-68 Malfunction indicator lamp (MIL)
OEM-X2-20 Injector 1
OEM-X2-70 Ignition coil 1 control
OEM-X2-75 Ignition coil 5 control
OEM-X2-72 Ignition coil 7 control
GND
GND
OEM-X2-19 Injector 6
OEM-X2-18 Injector 5
OEM-X2-37 Injector 2
OEM-X2-73 Ignition coil 2 control
OEM-X2-71 Ignition coil 8 control
OEM-X2-11 Cylinder shutoff solenoid 4 (AFM)
OEM-X1-61 EVAP canister vent solenoid
OEM-X2-17 Injector 8
OEM-X2-40 Injector 7
OEM-X2-39 Injector 4
OEM-X2-76 Ignition coil 4 control
OEM-X2-74 Ignition coil 6 control
OEM-X2-32 Generator field duty control
OEM-X2-61 Charge indicator signal
Ignition 12v In
OEM-X2-16 Camshaft actuator solenoid (VVT)
OEM-X2-38 Injector 3
T12-C2
T12
1Analogue 2
2Wheel 1
3Analogue 10
4Digital 1
5Analogue 3
6Analogue 4
7Thermistor 1
8Digital 2
10Analogue 1
12Crank
13Analogue 12
16Analogue 11
18Analogue 5
19Analogue 6
20Wheel 2
21Sensor Ground
22Cam 1
245v Output
25Thermistor 2
33Sensor Ground
34Analogue 9
OEM-X2-58 Manifold absolute pressure (MAP) signal
OEM-X1-71 VSS high signal (manual trans)
OEM-X2-59 HO2S signal, bank 2 sensor 1 (pre-cat)
OEM-X1-9 Brake switch signal
OEM-X1-29 Accelerator pedal position (APP) sensor 1 signal
OEM-X2-65 Throttle position sensor 1 signal
OEM-X2-21 Engine coolant temperature (ECT) signal
OEM-X2-33 Oil level switch signal
OEM-X1-41 Mass air flow (MAF) signal
OEM-X2-68 Crankshaft position signal (58x)
OEM-X1-24 Fuel tank pressure signal
OEM-X1-12 A/C refrigerant pressure signal
OEM-X1-32 Accelerator pedal position (APP) sensor 2 signal
OEM-X2-63 Throttle position sensor 2 signal
OEM-X1-72 VSS low signal (manual trans)
0V sensor
OEM-X2-64 Camshaft position signal (4x)
5V ref
OEM-X1-37 Intake air temperature (IAT) signal
0V sensor
OEM-X2-57 HO2S signal, bank 1 sensor 1 (pre-cat)
T12-C3
T12
3Lambda 2 Heater Negative
4PWM 9
9Lambda 1 Heater Negative
10PWM 8
13Analogue 13
17Analogue 7
18Analogue 8
22PWM 4
23PWM 5
24PWM 6
25PWM 7
26Permanent 12v
28PWM 10
29PWM 11
30PWM 12
31Knock 1
32Knock 2
OEM-X1-65 HO2S heater low control, bank 1 sensor 2
OEM-X2-13 HO2S heater low control, bank 2 sensor 1
OEM-X1-64 HO2S heater low control, bank 2 sensor 2
OEM-X2-12 HO2S heater low control, bank 1 sensor 1
OEM-X2-50 Engine oil pressure signal
OEM-X1-10 HO2S signal, bank 1 sensor 2 (post-cat)
OEM-X1-69 HO2S signal, bank 2 sensor 2 (post-cat)
OEM-X1-51 Fuel pump relay control (secondary)
OEM-X1-52 Starter enable relay control
OEM-X1-58 Low speed cooling fan relay
OEM-X1-63 A/C compressor clutch relay
Permanent 12v
OEM-X2-10 Cylinder shutoff solenoid 1 (AFM)
OEM-X2-14 Cylinder shutoff solenoid 2 (AFM)
OEM-X2-9 Cylinder shutoff solenoid 3 (AFM)
OEM-X2-26 Knock sensor 1 signal A
OEM-X2-27 Knock sensor 1 signal B
SP-14V · 4 pins
SP-5V1 · 11 pins
SP-GND · 6 pins
SP-0V · 17 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.
96 / 96 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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