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 MANUALSJEEP2008COMMANDER BASE, 3.7 K, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEM - ELECTRICAL DIAGNOSTICS
2008 Jeep Commander Base, 3.7 K, RWD
Anti-Lock Brake System - Electrical Diagnostics
2008 Jeep Commander Base, 3.7 K, RWDSECTION Anti-Lock Brake System - Electrical Diagnostics
- Diagnostic Code Index
- Brakes - Electrical Diagnostics
- Abs
- DTC Troubleshooting
- Abs-Intermittent Condition Test
- C1008-Brake Fluid Level Circuit High
- C100A-Left Front Wheel Speed Sensor Circuit
- C1011-Left Front Wheel Speed Sensor Signal Erratic Performance
- C1014-Left Front Wheel Speed Comparative Performance
- C1015-Right Front Wheel Speed Sensor Circuit
- C101C-Right Front Wheel Speed Sensor Signal Erratic Performance
- C101F-Right Front Wheel Speed Comparative Performance
- C1020-Left Rear Wheel Speed Sensor Circuit
- C1027-Left Rear Wheel Speed Sensor Signal Erratic Performance
- C102A-Left Rear Wheel Speed Comparative Performance
- C102B-Right Rear Wheel Speed Sensor Circuit
- C1032-Right Rear Wheel Speed Sensor Signal Erratic Performance
- C1035-Right Rear Wheel Speed Comparative Performance
- C1041-Left Front Tone Wheel Performance
- C1042-Right Front Tone Wheel Performance
- C1043-Left Rear Tone Wheel Performance
- C1044-Right Rear Tone Wheel Performance
- C1046-Left Front Wheel Pressure Phase Monitoring
- C1047-Right Front Wheel Pressure Phase Monitoring
- C1048-Left Rear Wheel Pressure Phase Monitoring
- C1049-Right Rear Wheel Pressure Phase Monitoring
- C1073-Abs Pump Motor Control Circuit
- C1078-Tire Revolutions Range Performance
- C107C-Brake Pedal Switch 1/2 Stuck
- C107D-Brake Pedal Switch 1/2 Correlation
- C1090-Abs Brake Lamp Control Circuit Low
- C1091-Abs Brake Lamp Control Circuit High
- C1210-G Sensor Input Circuit Performance
- C1219-Steering Angle Sensor Erratic Performance
- C121A-Steering Angle Sensor Not Initialized
- C121C-Torque Request Signal Denied
- C121D-Brake Pressure Sensor Circuit
- C121E-Brake Pressure Sensor Comparative Performance
- C1231-Drive Test: Steering Angle Sensor
- C1232-Drive Test: Pressure Sensor
- C1234-Drive Test: Sensor Cluster Installation
- C1238-Drive Test: Unsuccessful
- C1239-Emissions Rolls Test Active
- C123A-Esp System Sensors Calibration
- C123B-Esp System Control Too Long
- C123C-Dynamics Sensor Mounting/Installation Performance
- C123F-Steering Angle Sensor Comparative Performance
- C1240-Steering Angle Sensor OVERTRAVEL Performance
- C1242-G Sensor Input Signal Performance
- C1243-G Sensor Not Initialized
- C2100-Battery Voltage Low
- C2101-Battery Voltage High
- C2114-Dynamics Sensor Supply Voltage Low
- C2115-Dynamics Sensor Supply Voltage High
- C2116-Abs Pump Motor Supply Low Voltage
- C2200-Anti-Lock Brake Module Internal
- C2202-Original VIN Mismatch/Missing
- C2204-Dynamics Sensor Internal
- C2205-Steering Angle Sensor Internal
- C2206-Vehicle Configuration Mismatch
- U0002-Can C Bus Off Performance
- U0100-Lost Communication With ECM/Pcm
- U0101-Lost Communication With TCM
- U0114-Lost Communication With Final Drive Module
- U0125-Lost Communication With Dynamics Sensor
- U0126-Lost Communication With Steering Angle Sensor
- U0141-Lost Communication With Front Control Module
- U0401-Implausible Data Received From ECM/Pcm
- U0429-Implausible Data Received From SCM
- U1003-Esp Can C Bus Performance
- U1104-Can C Bus CRC Performance
- U140E-Implausible Vehicle Configuration Data Received
- U1501-Implausible Message Data Length Received From ECM/Pcm
- U1502-Implausible Message Data Length Received From TCM
- U1503-Implausible Message Data Length Received From FCM
- Standard Procedure
- DTC Troubleshooting
- Adjustable Pedals
- DTC Troubleshooting
- APS-Intermittent Condition Test
- B1D4F-Adjustable Pedal Inhibit Circuit Low
- B1D50-Adjustable Pedal Inhibit Circuit High
- B1D51-Adjustable Pedal Inhibit Circuit Open
- B1D56-Adjustable Pedal Sensor Circuit Low
- B1D57-Adjustable Pedal Sensor Circuit High
- B1D5B-Adjustable Pedal Switch Circuit Performance
- B1D5C-Adjustable Pedal Switch Circuit Stuck Forward
- B1D5D-Adjustable Pedal Switch Circuit Stuck Rearward
- B1D67-Adjustable Pedal Control Circuit Performance
- Standard Procedure
- DTC Troubleshooting
- Abs
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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.