Engine Control Module Connector End Views. Geo Tracker - 4WD 1996

For 1990-2009 cars

Table 1: | Back View Of the ECM Connector C1
Table 2: | Back View Of the ECM Connector C2
Table 3: | Back View Of the ECM Connector C3

#### Back View Of the ECM Connector C1

Connector Part Information

• | ECM Connector C1

• | 16 Cavities

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
C1-1 | BRN/RED | -- | Fuel Tank Pressure Sensor Input, 4-door only
C1-2 | WHT | -- | HO2S 1 Signal
C1-3 | YEL/RED | -- | Fuel Level Input
C1-4 | RED/YEL | -- | ECT Sensor Input
C1-5 | GRY/RED | -- | Reference Voltage
C1-6 | RED/BLK | -- | IAT Sensor Input
C1-7 | -- | -- | Blank
C1-8 | -- | -- | Blank
C1-9 | GRY/BLK | -- | MAF Sensor Signal
C1-10 | YEL | -- | HO2S 2 Signal
C1-11 | GRY | -- | TP Sensor Input
C1-12 | -- | -- | Blank
C1-13 | BRN/YEL | -- | MAP Sensor Input
C1-14 | BLU/WHT | -- | CTP Switch Signal
C1-15 | -- | -- | Blank
C1-16 | -- | -- | Blank

#### Back View Of the ECM Connector C2

Connector Part Information

• | ECM Connector C2

• | 22 Cavities

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
C2-1 | WHT | -- | Memory Power Input
C2-2 | BLK/YEL | -- | Park or Neutral Signal
C2-3 | PPL | -- | Duty Check Output
C2-4 | ORN | -- | Ignition Control Module Output
C2-5 | PNK | -- | Fuel Pump Relay Control
C2-6 | BLU/RED | -- | Test Switch Signal
C2-7 | YEL | -- | VSS Input
C2-8 | -- | -- | Blank
C2-9 | YEL/BLK | -- | A/C ON Signal
C2-10 | BLU | -- | Main Relay Control
C2-11 | -- | -- | Blank
C2-12 | BLU/BLK | -- | Ignition Positive Voltage
C2-13 | BLU/BLK | -- | Ignition Positive Voltage
C2-14 | PPL/YEL | -- | MIL Control
C2-15 | LT GRN/WHT | -- | EGR Solenoid Vacuum Control
C2-16 | WHT/YEL PNK/GRN | -- | TCC Relay Control, 3-speed A/T only ECT Output, 4-speed A/T only
C2-17 | BLU/YEL | -- | Diagnostic Request Signal
C2-18 | GRN/RED | -- | EGR Bypass Valve Control
C2-19 | BLU/ORN | -- | Power Steering Pressure Signal
C2-20 | PNK/WHT | -- | ABS Idle-Up Signal
C2-21 | -- | -- | Blank
C2-22 | BLK/RED | -- | Crank Signal, 3-speed A/T only

#### Back View Of the ECM Connector C3

Connector Part Information

• | ECM Connector C3

• | 26 Cavities

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
C3-1 | BLK/ORN | -- | Ground
C3-2 | BLK/ORN | -- | Ground
C3-3 | WHT | -- | CMP Sensor
C3-4 | -- | -- | Blank
C3-5 | YEL/RED | -- | Fuel Gauge Ground
C3-6 | GRN/WHT | -- | EVAP Canister Vent Valve Control, 4-door only
C3-7 | GRN/BLU | -- | EVAP Tank Pressure Control Solenoid Vacuum Valve Control,, 4-door only
C3-8 | BLU | -- | ECM/TCM Serial Data, 4-speed A/T only
C3-9 | PNK/WHT | -- | HO2S 2 Heater Control
C3-10 | PNK/BLU | -- | TP Output, 4-speed A/T only
C3-11 | RED | -- | Fuel Injector #1 Control
C3-12 | LT GRN/BLK | -- | IAC Valve Control
C3-13 | WHT/GRN | -- | Fuel Injector #3 Control
C3-14 | BLK/GRN | -- | PCM Ground
C3-15 | BRN | -- | Sensor Ground
C3-16 | BLK | -- | Ignition Reference High (CKP Sensor)
C3-17 | WHT | -- | Ignition Reference Low (CKP Sensor)
C3-18 | -- | -- | Blank
C3-19 | -- | -- | Blank
C3-20 | -- | -- | Blank
C3-21 | GRN/WHT | -- | Brake Light Switch, 3-speed A/T only
C3-22 | PPL/GRN | -- | Serial Data Output
C3-23 | PNK | -- | HO2S Sensor 1 Heater Control
C3-24 | LT GRN/RED | -- | Fuel Injector #2 Control
C3-25 | LT GRN/YEL | -- | EVAP Canister Purge Valve Control
C3-26 | WHT/BLK | -- | Fuel Injector #4 Control