Transfer Case High Range Switch Circuit Malfunction
The transfer case control module has detected an implausible state from the high range (4H) position switch. Range selection in 4WD mode may be limited.
Affected components
- Transfer case switch
- Transfer case module
- Shift actuator
Common causes
- High likelihood: High range position switch failed
- Medium likelihood: Shift actuator out of position
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
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.