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ENGINE OIL PRESSURE GAUGE INACCURATE OR INOPERATIVE Engine Oil Pressure Gauge Inaccurate or Inoperative 7 Repair the open, short to ground or high Go to Step 9 - 8 Replace the IPC. Refer to Instrument Panel Go to Step 9 - 9 Operate the system in order to verify the repair. System OK Go to Step 3 Step Action Value(s) Yes No Schematic Reference: Instrument Cluster Schematics 1 Did you perform the Instrument Cluster - Go to Step 2 Go to Diagnostic System Check - Instrument Cluster 2 Start the engine. 207-483 kPa (30- 70 psi) Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 3 1. Install a scan tool. 2. Turn the ignition ON, with the engine OFF. 3. With a scan tool, perform the Displays Test in the IPC scan tool Does the engine oil pressure gauge move up - Go to Step 4 Go to Step 10 4 1. Turn the ignition OFF. 2. Disconnect the negative battery cable. 3. Disconnect the engine oil pressure (EOP) sensor 4. Measure the resistance from the low reference circuit of the EOP sensor to Does the resistance measure less than the 5 ohm Go to Step 6 Go to Step 5
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2
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