Gages stopped working.
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1994 Oldsmobile Cutlass Supreme Question: What causes gages not to work
Answer #1paulsjapanese from Paul's Japanese Auto Repair & The Brake Stop, July 15, 2014, 11:18Technician
Best thing is to start by checking the fuse block. typically the one in the passenger compartment(dash) holds the fuses for accessory and the source for power. Sometimes is the cig lighter is shorted, can blow fuse under hood. GM has had the diagnostics port powered on the same circuit.
>if thats not the case, most likely the vehicle would need professional diagnosis.