How to Diagnose a Faulty Four Wheel Drive Switch

The most common symptom of a faulty Four Wheel Drive Switch is:

Car does not switch between 2WD and 4WD

Here are a few ways you can troubleshoot a faulty Four Wheel Drive Switch

First, please make sure you check the motor/s have been connected properly and go through the motor troubleshooting guide here, to eliminate motors as the culprit.
Pry the switch off its housing to make sure the wires have not been dislodged.
If the motor/s have been eliminated as the faulty part and the wires are connected properly on the switch, then, the fault is most likely the Four Wheel Drive Switch.

Updated on: 12/04/2021

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