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.
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Stock ECU being replaced
T4-C1-9 Injector 1
T4-C1-9 Injector 1
T4-C1-25 Injector 4
T4-C1-4 PWM 2
T4-C1-5 PWM 1
T4-C3-22 PWM 4
T4-C1-3 PWM 3
5V ref
T4-C2-1 Analogue 2
T4-C2-10 Analogue 1
T4-C1-25 Injector 4
5V ref
PCM power feed (VPWR, fused)
T4-C3-8 Lambda 1 VGND
0V sensor
T4-C2-7 Thermistor 1
T4-C2-4 Digital 1
T4-C1-17 Injector 2
5V ref
T4-C3-7 Lambda 1 Pump Current
0V sensor
T4-C3-18 Analogue 8
T4-C2-34 Analogue 9
T4-C1-34 Injector 3
T4-C2-25 Thermistor 2
T4-C2-14 Digital 4
0V sensor
T4-C3-12 Lambda 1 Nernst Voltage
0V sensor
T4-C3-31 Knock 1
0V sensor
T4-C2-22 Cam 1
T4-C2-2 Wheel 1
T4-C2-15 Digital 5
T4-C1-34 Injector 3
T4-C1-17 Injector 2
0V sensor
0V sensor
T4-C2-12 Crank
OEM-C175E
Stock ECU being replaced
1Fuel injector driver 1 (INJ 1)
2Fuel injector driver 5 (INJ 5)
3Fuel injector driver 4 (INJ 4)
4Variable camshaft timing valve 2 (VCT2)
5Variable camshaft timing valve 1 (VCT1)
6Variable camshaft timing valve 4 (VCT4)
7Variable camshaft timing valve 3 (VCT3)
8Electronic throttle control reference (ETCREF)
9Throttle position 2 (TP2-PS)
10Throttle position 1 (TP1-NS)
16Fuel injector driver 8 (INJ 8)
17Buffered power supply sensors (VBPWR)
18PCM power feed (VPWR, fused)
20Universal HEGO 1st reference (UREF-11)
23Electronic throttle control return (ETCRTN)
27Intake air temperature (IAT)
30Engine oil level switch (EOL)
31Fuel injector driver 6 (INJ 6)
34Voltage reference engine (VREF)
35Universal HEGO 1st pump current (UO2SIP-11)
40VR sensor return (VRSRTN)
44Intake manifold monitor (IMM)
45Intake port deactivation valve position
46Fuel injector driver 3 (INJ 3)
47Cylinder head temperature (CHT)
48Oil pressure switch
49Signal return engine #2
50Universal HEGO 1st sense (UO2SN-11)
52Knock sensor 1 bank 1 return (KS1−)
53Knock sensor 1 bank 1 signal (KS1+)
54VR sensor return (VRSRTN)
55Camshaft position bank 1 (CMP1)
56Camshaft position bank 1 exhaust (CMP1 EX)
57Oil pressure switch (MTX)
61Fuel injector driver 7 (INJ 7)
62Fuel injector driver 2 (INJ 2)
67Knock sensor 2 bank 1 return (KS2−)
69Crankshaft position return (CKP−)
70Crankshaft position (CKP+)
APP
APP-J
APP
GND1Pedal 1 low ref
GND2Pedal 2 low ref
SIG1Pedal position 1
SIG2Pedal position 2
VCC1Pedal 1 5V supply
VCC2Pedal 2 5V supply
0V sensor
0V sensor
T4-C2-5 Analogue 3
T4-C2-19 Analogue 6
Pedal 1 5V supply
Pedal 2 5V supply
T4
T4-C1
T4
3PWM 3
4PWM 2
5PWM 1
6Motor 1 +
7Motor 1 -
9Injector 1
13Power Ground 1
14Power Ground 2
17Injector 2
25Injector 4
31Ignition 12v In
34Injector 3
OEM-C175E-7 Variable camshaft timing valve 3 (VCT3)
OEM-C175E-4 Variable camshaft timing valve 2 (VCT2)
OEM-C175E-5 Variable camshaft timing valve 1 (VCT1)
TB-J-M+ Throttle motor +
TB-J-M- Throttle motor −
Fuel injector driver 5 (INJ 5) · 2 pins
GND
GND
Injector 2 · 2 pins
Fuel injector driver 8 (INJ 8) · 2 pins
Ignition 12v In
Fuel injector driver 3 (INJ 3) · 2 pins
T4-C2
T4
1Analogue 2
2Wheel 1
4Digital 1
5Analogue 3
6Analogue 4
7Thermistor 1
95v Output
10Analogue 1
12Crank
14Digital 4
15Digital 5
19Analogue 6
21Sensor Ground
22Cam 1
245v Output
25Thermistor 2
33Sensor Ground
34Analogue 9
OEM-C175E-9 Throttle position 2 (TP2-PS)
OEM-C175E-56 Camshaft position bank 1 exhaust (CMP1 EX)
OEM-C175E-30 Engine oil level switch (EOL)
APP-J-SIG1 Pedal position 1
TB-J-TPS1 Throttle position 1
OEM-C175E-27 Intake air temperature (IAT)
5V ref
OEM-C175E-10 Throttle position 1 (TP1-NS)
OEM-C175E-70 Crankshaft position (CKP+)
OEM-C175E-48 Oil pressure switch
OEM-C175E-57 Oil pressure switch (MTX)
APP-J-SIG2 Pedal position 2
0V sensor
OEM-C175E-55 Camshaft position bank 1 (CMP1)
5V ref
OEM-C175E-47 Cylinder head temperature (CHT)
0V sensor
OEM-C175E-45 Intake port deactivation valve position
T4-C3
T4
7Lambda 1 Pump Current
8Lambda 1 VGND
12Lambda 1 Nernst Voltage
17Analogue 7
18Analogue 8
22PWM 4
26Permanent 12v
27Permanent 12v
31Knock 1
OEM-C175E-35 Universal HEGO 1st pump current (UO2SIP-11)
OEM-C175E-20 Universal HEGO 1st reference (UREF-11)
OEM-C175E-50 Universal HEGO 1st sense (UO2SN-11)
TB-J-TPS2 Throttle position 2
OEM-C175E-44 Intake manifold monitor (IMM)
OEM-C175E-6 Variable camshaft timing valve 4 (VCT4)
Permanent 12v
Permanent 12v
OEM-C175E-53 Knock sensor 1 bank 1 signal (KS1+)
TB
TB-J
TB
M+Throttle motor +
M-Throttle motor −
GNDThrottle sensor ground
TPS1Throttle position 1
TPS2Throttle position 2
VCCThrottle 5V supply
T4-C1-6 Motor 1 +
T4-C1-7 Motor 1 -
0V sensor
T4-C2-6 Analogue 4
T4-C3-17 Analogue 7
Throttle 5V supply
SP-5V1 · 4 pins
SP-14V · 3 pins
SP-GND · 3 pins
SP-5V2 · 6 pins
SP-0V · 13 pins
◯New feed: NEW-BATT
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.