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Home >> Cadillac >> 2008 >> XLR Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays & Gages >> Diagnostic Information and Procedures >> DTC P2066 or P2636 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, remove the secondary fuel level sender and verify there are no obstructions interfering with the fuel level sender.
    • Repair any fuel level sender interference.
  2. If no interference is present, perform the fuel level sensor component test before replacing the secondary fuel level sensor.
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