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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Displays And Gages) >> Diagnostic Information and Procedures >> Volt Gage Inaccurate or Inoperative

Volt Gage Inaccurate or Inoperative

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Volt Gage Inaccurate or Inoperative

Step Action Yes No
Schematic Reference: Instrument Cluster Schematics 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Turn the ignition ON, with the engine OFF.
  2. Install a scan tool.
  3. With the scan tool, perform the Displays Test in the IPC scan tool Output Controls.
Does the gage move from 0 to its maximum value and back to 0 when you perform the Displays Test?		 Go to Step 3  Go to Step 4 
3
  1. Install a scan tool.
  2. Start the engine.
  3. With the scan tool, observe the Battery Voltage parameter in the BCM Data list.
Does the Battery Voltage parameter match the gage display?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 4 
4 Replace the instrument panel cluster (IPC). Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 5  -
5
  1. Use the scan tool in order to clear any induced DTCs.
  2. Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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