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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays, Gauges And Console >> Diagnostic Information and Procedures >> Volt Gauge Inaccurate or Inoperative

Volt Gauge Inaccurate or Inoperative

Volt Gauge Inaccurate or Inoperative

Step Action Value(s) Yes No
Schematic Reference:  Instrument Cluster Schematics  
1 Did you perform the Instrument Cluster Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Instrument Cluster 
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Compare the scan tool Ignition 1 signal parameter in the PCM Engine Data 1 data list to the volt gauge display.
Does the ignition 1 signal parameter approximately match the volt gauge display?		 - Go to Diagnostic System Check - Engine Electrical in Engine Electrical Go to Step 3 
3 Replace the IPC. Refer to Instrument Cluster Replacement .
Did you complete the replacement?		 - Go to Step 4  -
4 Operate the system in order to verify the repair.
Did you correct the condition?		 - System OK Go to Step 2 
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