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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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 395 (COMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSBODY CONTROL MODULE (BCM) X1
2008 Chevrolet HHR LT, 2.4 P, Automatic
Body Control Module (BCM) X1
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Body Control Module (BCM) X1
WARNING: This page is about a different car, the 2010 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) X1
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.5 L-BU/BK | 747 | Left Rear Door Ajar Switch Signal |
| 2 | 0.35 L-BU/BK | 6656 | Left Rear Access Panel Control (Panel Van) |
| 3 | 0.5 PU | 5531 | Hood Closed Switch Signal (AP3) |
| 4 | 0.5 PK/BK | 109 | Hood Ajar Switch Signal (AP3) |
| 5 | 0.5 TN | 755 | Sunroof Enable Signal (CF5) |
| 6 | 0.5 WH | 682 | Door Lock Lock/Unlock Signal |
| 7 | 0.5 WH/BK | 682 | Door Lock Lock/Unlock Signal |
| 8 | 0.5 WH/RD | 1080 | Park Lamp Relay Control |
| 9 | 0.5 YE | 5456 | Rear Wiper Park Signal |
| 10-12 | - | - | Not Used |
| 13 | 0.5 PK | 849 | Brake Fluid Level Sensor Signal (1) |
| 14 | 0.5 L-BU | 1134 | Park Brake Switch Signal |
| 15 | 0.5 YE | 5199 | Run/Crank Relay Coil Control |
| 16 | 0.5 WH | 193 | Rear Defog Relay Control |
| 17 | 0.5 D-BU | 15 | Right Turn Signal Lamp Supply Voltage |
| 18 | 0.5 D-GN | 5060 | Low Speed GMLAN Serial Data (U2K) |
| 19 | 0.5 TN/WH | 746 | Right Front Door Ajar Switch Signal |
| 20 | 0.5 L-GN/BK | 748 | Right Rear Door Ajar Switch Signal |
| 21 | - | - | Not Used |
| 22 | 0.5 GY/BK | 745 | Left Front Door Ajar Switch Signal |
| 23-30 | - | - | Not Used |
| 31 | 0.35 WH | 6065 | CHMSL Relay Control |
| 32 | - | - | Not Used |
| 33 | 0.5 D-GN/WH | 1135 | A/T Shift Interlock Solenoid Supply Voltage (MN5) |
| 34 | - | - | Not Used |
| 35 | 0.5 L-BU | 14 | Left Turn Signal Lamp Supply Voltage |
| 36 | 0.5 D-GN | 5060 | Low Speed GMLAN Serial Data (UE1) |
| 37-39 | - | - | Not Used |
| 40 | 0.35 L-BU | 1788 | Traction Control Switch Signal (JL4/JL9) |
| 41-43 | - | - | Not Used |
| 44 | 0.5 TN/WH | 1969 | Headlamp High Beam Relay Control |
| 45-46 | - | - | Not Used |
| 47 | 0.5 YE | 196 | Windshield Wiper Motor Park Switch Signal |
| 48-50 | - | - | Not Used |
| 51 | 0.5 D-GN | 113 | Windshield Wiper Switch Signal 2 |
| 52-53 | - | - | Not Used |
| 54 | 0.5 YE | 317 | Fog Lamp Relay Control |
| 55 | 0.5 PK/BK | 1303 | Liftgate Ajar Switch Signal |
| 56 | 0.35 L-BU | 1344 | Liftgate Release Relay Control |
| 57 | 0.35 D-BU | 5876 | Passenger Door Lock Actuator Lock Control (Panel Van) |
| 58 | 0.5 L-GN | 2270 | Rear Window Washer Relay Control |
| 59 | 0.5 GY | 391 | Rear Window Wiper Switch Signal |
| 60 | 0.5 TN | 28 | Horn Relay Control |
| 61 | 0.5 BK/WH | 1251 | Signal Ground |
| 62 | 0.5 RD/WH | 1340 | Battery Positive Voltage (LE8/LE9) |
| 63 | 0.5 GY | 596 | 5-Volt Reference (LE8/LE9) |
| 64 | 0.5 BK/WH | 851 | Signal Ground (LE8/LE9) |
| 65, 66 | - | - | Not Used |
| 67 | 0.5 YE | 61 | Low Reference |
| 68 | 0.5 WH | 5075 | Current Sensor Signal (LE8/LE9) |
| 69 | 0.5 WH/BK | 1221 | Liftgate Release Switch Signal |
| 70 | 0.5 D-GN/WH | 636 | Ambient Air Temperature Sensor Signal |
| 71 | 0.5 L-GN/BK | 592 | DRL Relay Control |
| 72 | - | - | Not Used |
Connector Part Information
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Terminal Part Information
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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.