Engine Error
P0800
Transfer Case Control System (MIL Request)
Severity
Medium
Symptoms
4WD/AWD system inoperative, 'Service 4WD' message, check engine light
Common Causes
- Faulty transfer case shift motor
- Failed Transfer Case Control Module (TCCM)
- Corroded wiring to transfer case
- Internal transfer case fault
How to Fix
- 1 Scan TCCM for specific codes
- 2 Test and replace shift motor
- 3 Repair wiring harness under vehicle
- 4 Replace TCCM
Estimated Repair Cost
USD
$100
–
$800
Shift motor: $200 - $450; TCCM replacement: $300 - $600