P0800

Transfer Case Control System (MIL Request)

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–111 (est.)

Symptoms

Check Engine Light Is On
Problems with switching all-wheel drive modes
The car can only remain in one drive mode
Unusual noises from the transfer case area
Reduced dynamic characteristics of the vehicle

Causes

Transfer case solenoid valve malfunction
Problems with the wiring harness or connectors
Transfer case position sensor malfunction
Mechanical damage to the transfer case
Low transmission fluid level

How to Fix

Check the level and condition of the transmission fluid
Diagnose electrical circuits and connectors of the system
Check the operation of the solenoid valves
Test transfer case position sensors
If necessary, replace faulty components

Related codes

P0801 P0802 P0803