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 G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 502 (ANTILOCK BRAKE SYSTEM)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Section 502 (Antilock Brake System)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Section 502 (Antilock Brake System)
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- ABS Wiring Schematic Icons
- ABS Wiring Schematics (Power, Ground, and Stoplamp Switch Signal)
- ABS Wiring Schematics (Traction Control Request, DLC, Torque and Steering Position Signals)
- ABS Wiring Schematics (Steering Wheel Position Sensor)
- ABS Wiring Schematics (Brake Fluid Pressure Sensor, Lateral Accelerometer and Yaw Rate Sensor (JL4))
- ABS Wiring Schematics (Wheel Speed Sensors)
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Antilock Brake System
- Diagnostic System Check - ABS
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- Diagnostic Test Drive
- Enhanced Diagnostics
- DTC B2597: Traction Control System Switch Circuit
- DTC C1214: System Relay Contact or Coil Circuit Open
- DTC C1217: Pump Motor Shorted to Ground
- DTC C1218: Pump Motor Circuit Shorted to Voltage or Motor Ground Open
- DTC C1221 To C1235: Wheel Speed Sensor
- DTC C1236: Low System Supply Voltage
- DTC C1237: High System Supply Voltage
- DTC C1242 or C1243: BPMV Pump Motor Circuit
- DTC C1248: EBCM Turned the Red Brake Warning Indicator On
- DTC C1254: Abnormal Shutdown Detected
- DTC C1255 or C1256: EBCM Internal Malfunction
- DTC C1261 To C1274: ABS Actuator Solenoid Fault
- DTC C1276, P1644, or P1689: Delivered Torque Signal Circuit Malfunction
- DTC C1277 or P1571: Requested Torque Signal Circuit Malfunction
- DTC C1278: TCS Temporarily Inhibited By PCM
- DTC C1281, C1283, or C1286: Steering Sensor Circuit Malfunction
- DTC C1282: Yaw Rate Sensor Bias Circuit Malfunction
- DTC C1284 or C1285: Lateral Accelerometer Sensor Circuit Malfunction
- DTC C1287 or C1288: Steering Sensor Circuit Malfunction
- DTC C1291: Open Brake Lamp Switch Contacts During Deceleration
- DTC C1292, C1293, or C1296: Brake Fluid Pressure Sensor Circuit
- DTC C1294: Brake Lamp Switch Circuit Always Active
- DTC C1295: Brake Lamp Switch Circuit Open
- Symptoms - Antilock Brake System
- ABS Indicator Always On
- ABS Indicator Inoperative
- Traction Control and Active Handling Indicator Always On
- Traction Control and Active Handling Indicator Inoperative
- Vehicle Stability Enhancement System Inoperative
- Vehicle Stability Enhancement System Unwanted Activation
- Vehicle Stability Enhancement System Excessive Brake Pulsation
- Repair Instructions
- ABS Automated Bleed Procedure
- Electronic Brake Control Module (EBCM) Replacement
- Brake Pressure Modulator Valve (BPMV) Replacement
- Brake Fluid Pressure Sensor Replacement
- Brake Pressure Modulator Valve (BPMV) Bracket Replacement
- Wheel Speed Sensor Replacement - Front
- Wheel Speed Sensor Replacement - Rear
- Traction Control Switch Replacement
- Lateral Accelerometer Replacement
- Yaw Rate Sensor Replacement
- Description and Operation
- ABS Description and Operation
- Notes
- Initialization Sequence
- Antilock Brake System
- Pressure Hold
- Pressure Decrease
- Pressure Increase
- Dynamic Rear Proportioning (DRP)
- Traction Control System (TCS) (NW9)
- Vehicle Stability Enhancement System (VSES)
- Rear Stability Control
- Brake System Indicator(s)
- ABS Indicator(s)
- Traction Control and Active Handling System Indicator(s)
- Traction Control and Active Handling
- ABS Description and Operation
- Special Tools and Equipment
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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.