Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2004MONTANA VAN PASSENGERREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSCONNECTOR END VIEWSPOWER CONTROL MODULE (PCM) C2 CONNECTOR END VIEW
2004 Pontiac Montana Van Passenger
Power Control Module (PCM) C2 Connector End View
2004 Pontiac Montana Van PassengerSECTION Power Control Module (PCM) C2 Connector End View
Power Control Module (PCM) C2 Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | - | - | Not Used |
| 2 | WHT | 1310 | EVAP Canister Vent Valve Control |
| 3 | DK GRN/WHT | 465 | Fuel Pump Relay Control |
| 4 | RED | 1676 | EGR Valve Feed Control |
| 5 | BRN/WHT | 419 | MIL Control |
| 6 | - | - | Not Used |
| 7 | LT BLU/WHT | 1747 | IAC Coil A High |
| 8 | - | - | Not Used |
| 9 | TAN/BLK | 464 | Delivered torque |
| 10 | PPL | 412 | HO2S Sensor 1 Signal High |
| 11 | PPL/WHT | 1668 | HO2S Sensor 2 Signal High |
| 12-15 | - | - | Not Used |
| 16 | WHT | 776 | Transaxle Range Switch Signal P |
| 17 | RED | 1226 | Trans Fluid Pressure Switch Signal C |
| 18 | BLK/WHT | 771 | Transaxle Range Switch Signal A |
| 19 | TAN/BLK | 231 | Oil Pressure Switch Signal |
| 20-21 | - | - | Not Used |
| 22 | DK GRN/WHT | 762 | A/C Request Signal |
| 23 | PPL | 806 | Crank Voltage |
| 24 | PNK | 439 | Ignition 1 Voltage |
| 25 | LT GRN | 432 | MAP Sensor Signal |
| 26 | YEL | 410 | ECT Sensor Signal |
| 27 | RED/BLK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 28 | BRN | 1456 | EGR Valve Position Signal |
| 29 | - | - | Not Used |
| 30 | GRY | 2702 | 5 Volt Reference |
| 31-32 | - | - | Not Used |
| 33 | GRY | 2701 | 5 Volt Reference |
| 34 | GRY | 2700 | 5 Volt Reference |
| 35 | BLK | 2759 | Low Reference |
| 36 | - | - | Not Used |
| 37 | BLK/WHT | 3113 | HO2S Heater Low Control |
| 38 | - | - | Not Used |
| 39 | DK GRN/WHT | 459 | A/C Compressor Clutch Relay Control |
| 40-41 | - | - | Not Used |
| 42 | LT BLU/BLK | 844 | Fuel Injection 4 Control |
| 43 | Not Used | ||
| 44 | LT BLU/BLK | 1748 | IAC Valve A Low |
| 45 | RED/BLK | 1228 | PC Solenoid Valve High |
| 46 | LT BLU/WHT | 1229 | PC Solenoid Valve Low |
| 47-48 | - | - | Not Used |
| 49 | LT GRN/BLK | 444 | IAC Valve B Low Control |
| 50 | TAN | 472 | Intake Air Temperature Sensor |
| 51-54 | - | - | Not Used |
| 55 | DK GRN | 890 | Fuel Tank Pressure Sensor Signal |
| 56 | GRY | 773 | Transaxle Range Switch Signal C |
| 57 | DK BLU | 1225 | Trans Fluid Pressure Switch Signal B |
| 58 | BRN | 1174 | Engine Oil Level Indicator Signal |
| 59 | WHT | 85 | Cruise Control Engaged Signal |
| 60 | - | - | Not Used |
| 61 | RED | 225 | Generator Turn On Signal |
| 62 | - | - | Not Used |
| 63 | YEL | 657 | TCC Release Switch Signal |
| 64-65 | - | - | Not Used |
| 66 | DK BLU | 417 | TP Sensor Signal |
| 67 | - | - | Not Used |
| 68 | YEL/BLK | 1227 | TFT Sensor Signal |
| 69 | PPL | 1589 | Fuel Level Sensor Signal |
| 70 | LT GRN | 1867 | 12 Volt Reference |
| 71 | - | - | Not Used |
| 72 | RED/WHT | 812 | 12 Volt Reference |
| 73 | BLK | 407 | Low Reference |
| 74 | YEL/BLK | 1868 | Low Reference |
| 75 | BRN | 436 | Air Pump Relay Control |
| 76 | YEL/BLK | 625 | Starter Enable Relay Control |
| 77 | - | - | Not Used |
| 78 | BRN | 418 | TCC PWM Solenoid Valve Control |
| 79 | - | - | Not Used |
| 80 | BLK | 808 | Low Reference |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.