Four Wheel Drive (4WD) Range Signal Circuit
The 4WD range signal circuit (reporting whether 2H, 4H, 4L is engaged) returns no usable signal.
Affected components
- Four wd range sensor
- Transfer case
- Wiring harness
Common causes
- High likelihood: Open range sensor or broken signal wire
- Medium likelihood: Corroded sensor connector
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.