P1862
Transmission Transfer Case Contact Plate Power Circuit Failure
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Four-wheel drive does not work
- Check engine light is on
- Difficulty switching transfer case modes
- Loss of power on one of the axes
- Clicking or other unusual sounds from the transfer case
Causes
- Open or short circuit in the power supply
- Oxidation of contact plate contacts
- Wiring harness damage
- Transfer case control unit malfunction
- Chain ground problems
How to Fix
- Check the integrity of the contact plate power circuit
- Clean and check connector contacts
- Check the condition of the wiring harness for damage
- Check the operation of the control unit
- If necessary, replace the contact plate