With a DMM
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the power feed (i.e. fuse, control module) from the suspect circuit.
- Disconnect the load.
- Set the rotary dial of the DMM to the Ω position.
- Connect 1 lead of the DMM to 1 end of the circuit to be tested.
- Connect the other lead of the DMM to a good ground.
- If the DMM does NOT display infinite resistance (OL), there is a short to ground in the circuit.