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Test C - Fuel Gauge Inaccurate

  1. Perform fuel level sensor test. See FUEL LEVEL SENSOR under COMPONENT TESTING. If fuel level sensor is okay, go to next step. If fuel level sensor tests bad, replace level sensor and retest system.
  2. Turn ignition switch to OFF position. Disconnect fuel level sensor connector. Measure resistance of Black/Green wire between fuel level sensor connector and ground. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Black/Green wire and retest system.
  3. Perform fuel gauge test. See FUEL GAUGE  under COMPONENT TESTING. If fuel gauge is okay, repair open in Black/Green wire between cluster connector C249 on vehicles without tachometer (C254 with tachometer) and ground and retest system. If fuel gauge tests bad, replace fuel gauge and retest system.
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