PCM Harness Resistance
Turn ignition switch to LOCK position. Disconnect PCM and appropriate component harness connectors. Check for open or short circuits between appropriate PCM harness connector terminal and appropriate component harness connector terminal. See POWERTRAIN CONTROL MODULE (PCM) table. See WIRING DIAGRAMS. If harness is open or shorted, repair as necessary.
POWERTRAIN CONTROL MODULE (PCM) (1)
| Connector | Terminal | Wire Color | Function | ||
|---|---|---|---|---|---|
| C1 | C1 | ***** | Not Used | ||
| C1 | C2 | DK GRN/WHT | A/C Request Signal | ||
| C1 | C3 | ***** | Not Used | ||
| C1 | C4 | TAN | Intake Air Temperature Signal | ||
| C1 | C5 | PPL | Accelerator Pedal Position (2) Signal | ||
| C1 | C6 | YEL | Glow Plug Relay Control | ||
| C1 | C7 | RED/BLK | Pressure Control Solenoid Valve High | ||
| C1 | C8 | YEL | Fuel Temperature Signal | ||
| C1 | C9 | YEL/BLK | Transmission Fluid Temperature Sensor | ||
| C1 | C10 | ***** | Not Used | ||
| C1 | C11 | YEL | Engine Coolant Temperature Signal | ||
| C1 | C12 | ***** | Not Used | ||
| C1 | C13 | RED | Closure Signal | ||
| C1 | C14 | ***** | Not Used | ||
| C1 | C15 | LT BLU/WHT | Pressure Control Solenoid Valve Low | ||
| C1 | C16 | ***** | Not Used | ||
| C1 | D1 | BLU/WHT | Transmission Input Speed Signal Low | ||
| C1 | D2 | ***** | Not Used | ||
| C1 | D3 | GRY | Accelerator Pedal Position (3) Reference Voltage | ||
| C1 | D4 | YEL/BLK | Accelerator Pedal Position (3) Signal | ||
| C1 | D5 | GRY | Fuel Lift Pump Signal | ||
| C1 | D6 | GRY | Accelerator Pedal Position (3) Ground | ||
| C1 | D7 | BRN | Glow Plug Signal | ||
| C1 | D8 | DK GRN/WHT | Fuel Pump Relay Control | ||
| C1 | D9 | PNK/BLK | Sensor Ground | ||
| C1 | D10 | GRY/BLK | Cruise Resume/Accel Signal | ||
| C1 | D11 | RED/BLK | Transmission Input Speed Signal High | ||
| C1 | D12 | GRY | Accelerator Pedal Position (1) Reference Voltage | ||
| C1 | D13 | GRY | Boost & CKP Sensor Reference Voltage | ||
| C1 | D14 | GRY | Pump CAM Reference Voltage | ||
| C1 | D15 | ***** | Not Used | ||
| C1 | D16 | ***** | Not Used | ||
| C2 | A1 | BLK | Closure Ground | ||
| C2 | A2 | ORG | Fuel Temp. Sensor High Resolution Signal | ||
| C2 | A3 | BRN | Transmission Input Speed Signal | ||
| C2 | A4 | BRN/WHT | Injection Pump CAM Sensor Signal | ||
| C2 | A5 | YEL | CKP Sensor Signal | ||
| C2 | A6 | DK GRN/WHT | Vehicle Speed Sensor Signal | ||
| C2 | A7 | RED/BLK | Injection Timing Stepper Motor High | ||
| C2 | A8 | TAN/BLK | Injection Timing Stepper Motor Low | ||
| C2 | A9 | ORG/BLK | Injection Timing Stepper Motor Low | ||
| C2 | A10 | YEL/BLK | Injection Timing Stepper Motor High | ||
| C2 | A11 | GRY | Cruise Control On/Off Signal | ||
| C2 | A12 | PPL | Accelerator Pedal Position (2) Ground | ||
| C2 | B1 | BRN | Accelerator Pedal Position (1) Ground | ||
| C2 | B2 | DK GRN/WHT | Accelerator Pedal Position (1) Signal | ||
| C2 | B3 | ***** | Not Used | ||
| C2 | B4 | RED | Transmission Range Switch C Signal | ||
| C2 | B5 | DK BLU | Transmission Range Switch B Signal | ||
| C2 | B6 | PNK | Transmission Range Switch A Signal | ||
| C2 | B7 | ***** | Not Used | ||
| C2 | B8 | ***** | Not Used | ||
| C2 | B9 | PPL | TCC/ABS Brake Switch Signal | ||
| C2 | B10 | LT BLU | Brake Light Switch Signal | ||
| C2 | B11 | DK BLU | Cruise Set/Coast Signal | ||
| C2 | B12 | BLK | IAT, Boost, ECT & TFT Sensor Grounds | ||
| C3 | C1 | ***** | Not Used | ||
| C3 | C2 | GRY | Accelerator Pedal Position (2) Reference Voltage | ||
| C3 | C3 | LT GRN | Fuel Injection Control | ||
| C3 | C4 | LT GRN | 1-2 Shift Solenoid Signal | ||
| C3 | C5 | BRN | TCC PWM Solenoid | ||
| C3 | C6 | YEL/BLK | 2-3 Shift Solenoid Signal | ||
| C3 | C7 | ***** | Not Used | ||
| C3 | C8 | PPL | Class 2 Communication | ||
| C3 | C9 | ***** | Not Used | ||
| C3 | C10 | ***** | Not Used | ||
| C3 | C11 | PNK | Ignition Voltage | ||
| C3 | C12 | PNK | Ignition Voltage | ||
| C3 | C13 | ORG | Battery Voltage | ||
| C3 | C14 | BRN/WHT | MIL Control | ||
| C3 | C15 | DK BLU/WHT | Engine Shutoff Control | ||
| C3 | C16 | ***** | Not Used | ||
| C3 | D1 | ***** | Not Used | ||
| C3 | D2 | ***** | Not Used | ||
| C3 | D3 | LT GRN | Fuel Injection Control | ||
| C3 | D4 | ***** | Not Used | ||
| C3 | D5 | DK GRN/WHT | A/C Enable Signal | ||
| C3 | D6 | BLK/WHT | Ground | ||
| C3 | D7 | TAN/WHT | Ground | ||
| C3 | D8 | ***** | Not Used | ||
| C3 | D9 | ***** | Not Used | ||
| C3 | D10 | ***** | Not Used | ||
| C3 | D11 | WHT/BLK | Service Throttle Soon Light Control | ||
| C3 | D12 | ***** | Not Used | ||
| C3 | D13 | ORG | Battery Voltage | ||
| C3 | D14 | ***** | Not Used | ||
| C3 | D15 | DK BLU/WHT | Engine Shutoff Solenoid Control | ||
| C3 | D16 | ***** | Not Used | ||
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