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TESTING FUEL GAUGE Disconnect Yellow/Red wire connector at fuel tank sending unit. Connect a 12-volt, 3.4-watt bulb (light) to harness side of connector and ground. Turn ignition on. Ensure bulb lights and fuel gauge needle fluctuates several seconds later. If not as specified, replace fuel gauge. FUEL GAUGE SENDING UNIT Remove fuel gauge sending unit from vehicle. Connect an ohmmeter between sending unit connector terminals. See FUEL GAUGE SENDING UNIT RESISTANCE table. If resistance is not as specified, replace sending unit. See Fig. 1. FUEL GAUGE SENDING UNIT RESISTANCE TABLE
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