For 1990-2009 cars

Table 1: | Back View of the PCM Connector C1
Table 2: | Back View Of the PCM Connector C2
Table 3: | Back View Of the PCM Connector C3
Table 4: | Back View Of the PCM Connector C4

#### Back View of the PCM Connector C1

Connector Part Information |

• | 2.0L VIN C Powertrain

• | 35 Pin Gray Connector C1 with Blue Terminal Secondary Lock Insert

Pin | Wire Color | Function
--- | --- | ---
C1-1 | GRY/RED | Fuel Tank Pressure Sensor Reference Voltage
C1-2 | WHT | Battery Positive Voltage
C1-3 | PNK/GRN | HO2S 2 Heater Control
C1-4 | GRY | TP Signal (for cruise control, if equipped)
C1-5 | -- | Not Used
C1-6 | BRN | Tachometer
C1-7 | PPL/YEL | MIL Control
C1-8 | GRY/WHT | A/C Cut-Out Control
C1-9 | BLU | Main Relay Control
C1-10 TO C1-12 | -- | Not Used
C1-13 | PPL/GRN | Serial Data Output
C1-14 | -- | Not Used
C1-15 | BLK/ORN | Electrical Load Diode Signal (rear defogger switch)
C1-16 | PNK/WHT | HVAC Blower Idle-Up Signal
C1-17 | YEL/BLK | A/C Idle-Up Signal
C1-18 | -- | Not Used
C1-19 | ORN/BLK | 4WD Indicator Lamp Control
C1-20 | WHT/BLK | O/D Indicator Lamp Control (A/T only)
C1-21 | GRY/BLU | Power/Normal Indicator Lamp Control (A/T only)
C1-22 | YEL/BLU | A/C Condenser Fan Relay Control
C1-23 | WHT/GRN | Fuel Pump Relay Control
C1-24 | GRY/YEL | HO2S 2 Sensor Ground
C1-25 | -- | Not Used
C1-26 | RED/GRN | HO2S 2 Signal
C1-27 | BRN/RED | Fuel Tank Pressure Sensor Input
C1-28 | BLU/WHT | Fuel Tank Level Sensor Input
C1-29 | -- | Not Used
C1-30 | PNK/BLK | EBCM Idle-Up Signal (ABS only)
C1-31 | ORN/BLU | Shift Mode Input (A/T only)
C1-32 | RED/YEL | Tail Lamp Idle-Up Signal (A/T only)
C1-33 | YEL/RED | O/D Switch Signal (A/T only)
C1-34 | GRN/WHT | Brake Switch Signal
C1-35 | PNK/BLU | O/D Cut Signal (from cruise control servo, if equipped)

#### Back View Of the PCM Connector C2

Connector Part Information |

• | 2.0L VIN C Powertrain

• | 26 Pin Gray Connector C2 with Blue Terminal Secondary Lock Insert

Pin | Wire Color | Function
--- | --- | ---
C2-1 | LT BLU | IAT Sensor Input
C2-2 | ORN/BLK | ECT Sensor Input
C2-3 | BLK | Knock Sensor Input
C2-4 | BLU/BLK | Ignition Positive Voltage
C2-5 | PPL/GRN | MAF Sensor Ground
C2-6 | BLK/GRN | Ground
C2-7 | BLU/ORN | PSP Switch Idle-Up Signal
C2-8 | RED/WHT | MAP Sensor Input
C2-9 | RED/GRN | TP Sensor Input
C2-10 | PPL/WHT | MAF Sensor Input
C2-11 | RED | HO2S 1 Signal
C2-12 | -- | HO2S 1 Sensor Shield Ground
C2-13 | GRY/RED | TP Sensor Reference Voltage
C2-14 | WHT/RED | MAP Sensor Reference Voltage
C2-15 | BLU/BLK | Ignition Positive Voltage
C2-16 | -- | Not Used
C2-17 | BLK/BLU | Ground
C2-18 | BLK/YEL | Crank Signal
C2-19 | -- | Not Used
C2-20 | BLK/WHT | Ignition Positive Voltage
C2-21 | GRY/YEL | Sensor Ground
C2-22 | GRY/YEL | HO2S 1 Sensor Ground
C2-23 to C2-24 | -- | Not Used
C2-25 | BLU/WHT | Sensor Ground
C2-26 | PPL/RED | CMP Sensor Ground

#### Back View Of the PCM Connector C3

Connector Part Information |

• | 2.0L VIN C Powertrain

• | 28 Pin Connector C3 with Orange Terminal Secondary Lock Insert

Pin | Wire Color | Function
--- | --- | ---
C3-1 | GRN/RED | Shift Solenoid #2 Control
C3-2 | GRN | Shift Solenoid #1 Control
C3-3 TO C3-7 | -- | Not Used
C3-8 | GRN/YEL | TCC Solenoid Control
C3-9 | -- | Not Used
C3-10 | BLU/GRN | A/T Input Shaft Speed Sensor Signal Low
C3-11 | BLU/YEL | A/T Input Shaft Speed Sensor Signal High
C3-12 to C3-14 | -- | Not Used
C3-15 | YEL/GRN | TR Switch D Position Signal
C3-16 | ORN/BLU | TR Switch N Position Signal
C3-17 | RED | TR Switch R Position Signal
C3-18 | ORN/GRN | TR Switch P Position Signal
C3-19 | -- | Not Used
C3-20 | BLK | A/T Output Shaft Speed Sensor Shielded Ground
C3-21 | BLK | A/T Input Shaft Speed Sensor Shielded Ground
C3-22 | ORN | A/T Output Shaft Speed Sensor Signal Low
C3-23 | WHT | A/T Output Shaft Speed Sensor Signal High
C3-24 to C3-25 | -- | Not Used
C3-26 | ORN/WHT | 4WD Low Signal
C3-27 | GRN/BLU | TR Switch L Position Signal
C3-28 | GRN/ORN | TR Switch 2 Position Signal

#### Back View Of the PCM Connector C4

Connector Part Information |

• | 2.0L VIN C Powertrain

• | 30 Pin Gray Connector C4 with Green Terminal Secondary Lock Insert

Pin | Wire Color | Function
--- | --- | ---
C4-1 | PNK/BLK | Fuel Injector #2 Control
C4-2 | PNK | Fuel Injector #1 Control
C4-3 | LT GRN/BLK | IAC Valve Coil Control
C4-4 | GRY | HO2S 1 Heater Control
C4-5 | PPL/RED | EVAP Canister Vent Solenoid Control
C4-6 | GRN/WHT | EVAP Tank Pressure Control Solenoid Valve Control - if equipped
C4-7 | RED | 4WD Actuator Control
C4-8 | PNK/BLU | Fuel Injector #4 Control
C4-9 | PNK/GRN | Fuel Injector #3 Control
C4-10 | PPL/YEL | IAC Valve Coil Control
C4-11 | GRY/BLU | IAC Valve Coil Control
C4-12 | PPL/BLK | IAC Valve Coil Control
C4-13 | LT GRN/RED | EGR Valve Coil Control
C4-14 | LT GRN/YEL | EGR Valve Coil Control
C4-15 | LT GRN/WHT | EGR Valve Coil Control
C4-16 | LT GRN | EGR Valve Coil Control
C4-17 | GRN/BLK | EVAP Canister Purge Valve Control
C4-18 | BLK/ORN | 4WD Signal
C4-19 | WHT/BLU | CKP Sensor Signal High
C4-20 | ORN/BLU | CKP Sensor Signal Low
C4-21 | BRN/YEL | Ignition Coil #4 Control
C4-22 | BRN/WHT | Ignition Coil #3 Control
C4-23 | BRN/BLK | Ignition Coil #2 Control
C4-24 | BRN | Ignition Coil #1 Control
C4-25 | BLU/YEL | VSS Signal
C4-26 | YEL/BLU | CMP Sensor Signal
C4-27 | PNK | 4WD Actuator Control
C4-28 | BLK/BLU | Ground
C4-29 | BLK/GRN | DLC Ground
C4-30 | -- | CKP Sensor Shielded Ground