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.
Powertrain Control Module (PCM) Connector End View C2
2005 Pontiac Montana SV6 AWDSECTION Powertrain Control Module (PCM) Connector End View C2
Powertrain Control Module (PCM) Connector End Views
Connector Part InformationÂ
|
Terminal Part InformationÂ
|
Powertrain Control Module (PCM) C2
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | BN | 1456 | EGR Valve Position Signal |
| 2 | TN | 800 | UART Serial Data (Primary) |
| 3 | OG/BK | 1061 | UART Serial Data (Secondary) |
| 4 | PK/BK | 1746 | Fuel Injector 3 Control |
| 5 | TN | 1744 | Fuel Injector 1 Control |
| 6 | L-GN/BK | 1745 | Fuel Injector 2 Control |
| 7 | TN/WH | 845 | Fuel Injector 5 Control |
| 8 | TN | 2753 | Low Reference |
| 9 | YE/BK | 846 | Fuel Injector 6 Control |
| 10 | L-BU/BK | 844 | Fuel Injector 4 Control |
| 11 | OG/WH | 2122 | IC 2 Control |
| 12 | L-BU | 5038 | HO2S Heater Low Control - Sensor 1 |
| 13 | OG | 1676 | EGR Solenoid High Control |
| 14 | - | - | Not Used |
| 15 | YE/BK | 1868 | Low Reference |
| 16 | GY | 435 | EGR Solenoid Low Control |
| 17 | - | - | Not Used |
| 18 | L-GN | 432 | MAP Sensor Signal |
| 19-20 | - | - | Not Used |
| 21 | OG/WH | 812 | 12-Volt Reference |
| 22 | L-GN | 1867 | 12-Volt Reference |
| 23-25 | - | - | Not Used |
| 26 | BN/WH | 633 | CMP Sensor Signal |
| 27 | L-BU/WH | 1800 | CKP Sensor Signal |
| 28-29 | - | - | Not Used |
| 30 | OG/BK | 469 | Low Reference |
| 31 | - | - | Not Used |
| 32 | TN | 407 | Low Reference |
| 33 | GY | 2702 | 5-Volt Reference |
| 34 | GY | 2704 | 5-Volt Reference |
| 35 | - | - | Not Used |
| 36 | GY | 2303 | Low Reference |
| 37 | YE | 2174 | Low Reference |
| 38 | D-BU | 496 | Knock Sensor 1 Signal |
| 39 | BARE | 1251 | Ground |
| 40 | GY | 1716 | Low Reference |
| 41 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 42-44 | - | - | Not Used |
| 45 | GY | 23 | Generator Field Duty Cycle Signal |
| 46 | - | - | Not Used |
| 47 | PU | 1664 | HO2S Low Signal - Sensor 1 |
| 48 | PU/WH | 1665 | HO2S High Signal - Sensor 1 |
| 49-52 | - | - | Not Used |
| 53 | OG | 225 | Generator Turn On Signal |
| 54 | L-BU | 1876 | Knock Sensor 2 Signal |
| 55 | YE | 410 | ECT Sensor Signal |
| 56 | BARE | 1251 | Ground |
| 57 | TN/BK | 231 | Oil Pressure Switch Signal |
| 58-60 | - | - | Not Used |
| 61 | PU | 2121 | IC 1 Control |
| 62 | - | - | Not Used |
| 63 | L-BU | 2123 | IC 3 Control |
| 64-72 | - | - | Not Used |
| 73 | BK/WH | 451 | Ground |
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.