Reverse Output Circuit
General electrical fault on the reverse-output circuit — the line that drives backup lights, reverse alarm or transfer-case reverse signal. With the output broken these consumers cannot be activated.
Affected components
- Reverse output circuit
- Wiring harness
Common causes
- High likelihood: Open or shorted output wire
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.