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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 351 (Engine Controls Self-Diagnostics - 2.2L Bi-Fuel) >> Diagnostic Tests >> DTC P2668: Fuel Indicator Light Command/Actual State Do Not Match >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedure.

  1. 2  - This step tests if the concern is active. The FIL should turn ON and OFF with the scan tool commands. Repeat the commands as necessary.
  2. 5  - This step verifies that the PCM is providing ground to the FIL.
  3. 6  - This step tests if a ground is constantly being applied to the FIL.
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