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Component Testing Procedure

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Circuit to test Connect self-powered test light or ohmmeter to terminals Move switch to these positions A good switch will indicate
Interior dome Circuit 4 and 2
4 and 3
Dome lamp on Closed circuit
4 and 2
4 and 7
Dome lamp off Closed circuit
Interior dimmer Circuit 4 and 3 Dimmer Up/Dome lamp on Closed circuit
4 and 7 Dimmer Down/Dome lamp off Closed circuit
Interior dome/dimmer Circuit 4 and 2
4 and 3
4 and 7
At rest Open circuit