Reverse Inhibit Control Circuit
The TCM detects an electrical fault in the reverse inhibit solenoid circuit, which prevents engagement of reverse at high vehicle speeds.
Affected components
- Reverse inhibit solenoid
- Wiring harness
- Tcm
Common causes
- High likelihood: Solenoid failed
- Medium likelihood: Wiring or connector fault
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
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.