Driveline Disconnect Switch Input Circuit
General electrical fault on the driveline disconnect switch input — used on AWD/4WD vehicles to electrically disengage the rear or front axle for fuel economy. With the input invalid the disconnect cannot be commanded.
Affected components
- Driveline disconnect switch
- Wiring harness
Common causes
- High likelihood: Open or shorted switch 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.