P1857
Transfer Case Contact Plate 'C' Short Circuit To Ground
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Problems with switching all-wheel drive modes
- The transfer case only works in one mode
- Unstable operation of the all-wheel drive system
Causes
- Damage to transfer case wiring harness
- Short circuit in contact plate circuit
- Oxidation or corrosion of contacts
- Contact plate 'C' faulty
- Circuit Grounding Problems
How to Fix
- Check wiring harness for damage
- Inspect the contact plate for corrosion
- Check continuity of circuit and grounding
- Replace contact plate if necessary
- Clear and restore contacts