Invalid Data Received from 4-Wheel Drive Clutch Control Module
The 4WD coupling controller delivers implausible torque or temperature data. AWD operation is degraded; on many vehicles the driveline warning lamp illuminates.
Affected components
- Awd coupling module
Common causes
- Medium likelihood: Coupling oil overheated
- Low likelihood: Gateway module routing CAN messages incorrectly
- Low likelihood: CAN terminating resistor (120 Ω) drifted out of spec
Possible symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.