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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1008 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - 2 OF 5)ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (F55)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Electronic Suspension Control (ESC) Module (F55)
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Electronic Suspension Control (ESC) Module (F55)
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Electronic Suspension Control (ESC) Module (F55)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | 0.35 PU/WH | 1205 | Left Front Strut Position Sensor Voltage Reference |
| 3 | 0.35 PU/WH | 1211 | Right Front Strut Position Sensor Voltage Reference |
| 4 | 0.35 OG/BK | 1208 | Left Rear Strut Position Sensor Voltage Reference |
| 5 | 0.35 OG/BK | 1214 | Right Rear Strut Position Sensor Voltage Reference |
| 6-7 | - | - | Not Used |
| 8 | 0.35 WH | 320 | Automatic Level Control Exhaust Solenoid Control |
| 9 | 0.35 YE | 321 | Electronic Level Control Relay Output - Coil |
| 10 | - | - | Not Used |
| 11 | 0.35 L-GN/BK | 1215 | Right Rear Strut Position Sensor Low Reference |
| 12-16 | - | - | Not Used |
| 17 | 0.35 TN/WH | 1207 | Left Front Strut Position Sensor Signal |
| 18 | 0.35 TN/WH | 1213 | Right Front Strut Position Sensor Signal |
| 19 | 0.35 L-GN/WH | 1216 | Right Rear Strut Position Sensor Signal |
| 20-23 | - | - | Not Used |
| 24 | 0.35 TN | 2501 | High Speed GMLAN Serial Data (-) |
| 25 | 0.35 TN/BK | 2500 | High Speed GMLAN Serial Data (+) |
| 26 | 0.35 L-BU/BK | 1212 | Right Front Strut Position Sensor Low Reference |
| 27 | 0.35 L-BU/BK | 1209 | Left Rear Strut Position Sensor Low Reference |
| 28 | 0.8 OG/BK | 1013 | Left Rear Strut Motor Decrease Damping Control |
| 29 | 0.8 BN | 1007 | Ride Control Strut Motor - Feed - Right Front - Decrease Damping |
| 30 | 0.8 L-GN | 1005 | Left Front Strut Motor Decrease Damping Control |
| 31 | 0.35 YE | 5727 | High Speed GMLAN Serial Data Wake Up |
| 32 | 0.35 RD/WH | 2340 | Battery Positive Voltage |
| 33 | 0.35 L-GN/WH | 1210 | Left Rear Strut Position Sensor Signal |
| 34-36 | - | - | Not Used |
| 37 | 0.35 L-GN/BK | 6432 | CAN Bus Low Serial Data (JL7) |
| 38 | 0.35 TN/WH | 6433 | CAN Bus High Serial Data (JL7) |
| 39 | 0.35 TN | 2501 | High Speed GMLAN Serial Data (-) |
| 40 | 0.35 TN/BK | 2500 | High Speed GMLAN Serial Data (+) |
| 41 | 0.35 L-BU/BK | 1206 | Left Front Strut Position Sensor Low Reference |
| 42 | 0.8 YE | 1014 | Right Rear Strut Motor Increase Damping |
| 43 | 0.8 OG | 1010 | Left Rear Strut Motor Increase Damping Control |
| 44 | 0.8 PU | 1017 | Right Rear Strut Motor Decrease Damping |
| 45 | 0.8 WH/BK | 1006 | Right Front Strut Motor Increase Damping Control |
| 46 | 0.8 OG/BK | 1448 | Left Front Strut Motor Increase Damping |
| 47 | 0.35 BK | 1050 | Ground |
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.