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 MANUALSPONTIAC2007WAVE LT, 4D HATCHBACK, STANDARD, Y4M/MLMREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALOEM CONNECTOR END VIEWSENGINE CONTROL MODULE CONNECTOR END VIEWS (NOTCHBACK)ENGINE CONTROL MODULE (ECM) CONNECTOR END VIEW/PART INFORMATION/TERMINAL IDENTIFICATION M (MR140)
2007 Pontiac Wave LT, 4D Hatchback, Standard, Y4M/MLM
Engine Control Module (ECM) Connector End View/Part Information/Terminal Identification M (MR140)
2007 Pontiac Wave LT, 4D Hatchback, Standard, Y4M/MLMSECTION Engine Control Module (ECM) Connector End View/Part Information/Terminal Identification M (MR140)
Engine Control Module (ECM) Connector End View/Part Information/Terminal Identification M (MR140)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | WH | - | Ignition Coil 2 and 3 Control |
| 2 | BN | - | Heated Oxygen Sensor 2 Heater Control |
| 3 | PK | - | Ignition 1 Voltage |
| 4 | BN | - | EVAP Canister Purge Solenoid Control |
| 5 | YE/BK | - | Low Reference |
| 6 | L-BU | - | Throttle Position Sensor Signal |
| 7 | BN | - | Intake Air Temperature (IAT) Sensor Signal |
| 8 | L-GN | - | Exhaust Gas Recirculation (EGR) Valve Signal |
| 9 | GY | - | Exhaust Gas Recirculation (EGR) Valve Position Sensor Signal |
| 10 | - | - | Not Used |
| 11 | PU/D-BU | - | Fuel Injector #4 Control |
| 12 | GN/WH | - | Heated Oxygen Sensor 1 Low Reference |
| 13 | GN | - | High Idle Switch Output |
| 14 | PK/D-BU | - | Idle Air Control (IAC) Valve Coil B Low Control |
| 15 | L-GN/BK | - | Idle Air Control (IAC) Valve Coil A Low Control |
| 16 | PU | - | 5-Volt Reference |
| 17 | - | - | Not Used |
| 18 | D-BU | - | Knock Sensor Signal |
| 19 | WH | - | Exhaust Gas Recirculation Valve Control |
| 20 | - | - | Not Used |
| 21 | D-BU/WH | - | Crankshaft Position Sensor Signal |
| 22 | BN | - | Fuel Injector #2 Control |
| 23 | - | - | Not Used |
| 24 | L-GN/D-BU | - | Fuel Injector #3 Control |
| 25 | D-BU/WH | - | Fuel Injector #1 Control |
| 26 | L-BU/BK | - | Camshaft Position Sensor Signal |
| 27 | - | - | Not Used |
| 28 | YE | - | Engine Coolant Temperature Sensor Signal |
| 29 | BN | - | Heated Oxygen Sensor 1 Signal |
| 30 | BU | - | Idle Air Control (IAC) Valve Coil B High Control |
| 31 | - | - | Not Used |
| 32 | PK | - | 5-Volt Reference |
| 33 | WH | - | Ignition Coil 2 and 3 Control |
| 34 | - | - | Not Used |
| 35 | OG | - | Ignition Coil 1 and 4 Control |
| 36 | - | - | Not Used |
| 37 | BK | - | Ground |
| 38 | BK | - | Ground |
| 39 | BK | - | Ground |
| 40 | BK | - | Ground |
| 41 | BK | - | Ground |
| 42-47 | - | - | Not Used |
| 48 | BN/WH | - | Low Reference |
| 49-50 | - | - | Not Used |
| 51 | OG | - | Ignition Coil 1 and 4 Control |
| 52 | WH | - | Exhaust Gas Recirculation Valve Control |
| 53-63 | - | - | Not Used |
| 64 | BN | - | 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.