Torque Management Feedback Signal A
The torque feedback signal A from the transmission or other torque user is missing or invalid. The engine controller cannot reduce torque on shift requests, which can cause harsh shifts.
Affected components
- Tcm
- Communication bus
- Wiring harness
Common causes
- High likelihood: Required CAN message not received in time
- Medium likelihood: Source module reports an internal fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
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.