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Component Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, remove the left fuel level sender from the fuel tank.
  2. Connect a DMM between terminal A and terminal D.
  3. Verify the secondary fuel level sender resistance remains within 40-250 ohms and changes smoothly while moving the float arm from stop to stop.
    • If the resistance is outside the specified range or changes erratically while moving the float arm from stop to stop, replace the fuel level sender.
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