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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gages >> Diagnostic Information and Procedures >> Tachometer Inaccurate or Inoperative >> Circuit/System Testing

Circuit/System Testing

Ignition ON, perform the tachometer gage sweep test with the scan tool.

If the tachometer gage does not sweep from its low to high position, replace the IPC.

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