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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 648 (Instrument Panel, Gauges & Console) >> Diagnostic Information & Procedures >> Fuel Gauge Inaccurate or Inoperative (Dual Tank) >> Test Description

Test Description

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The numbers below refer to the step numbers on the diagnostic table.

  1. 3.  This step tests for high resistance in the signal circuits and the low reference circuit of the fuel level senders.
  2. 13.  DTCs will be set in the PCM when you perform this diagnostic table
Fig 1: Fuel Gauge Inaccurate Or Inoperative (Dual Tank) (1 Of 2)
G01697181Courtesy of GENERAL MOTORS CORP.
Fig 2: Fuel Gauge Inaccurate Or Inoperative (Dual Tank) (2 Of 2)
G01697182Courtesy of GENERAL MOTORS CORP.