P1877
Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)
Symptoms
- Check Engine Light Is On
- Problems with switching drive modes
- The transfer case only works in one mode
- Reduced power or traction
- Activating transmission emergency mode
Causes
- Short circuit in the solenoid circuit to battery positive
- Broken wiring or poor contact
- 2WD solenoid malfunction
- Relay or fuse problems
- Transmission control module malfunction
How to Fix
- Check fuses and relays associated with the drive system
- Inspect the wiring harness for damage
- Check solenoid resistance
- Check the circuit for short circuit to positive
- Replace faulty solenoid if necessary