LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2008 >> HHR SS, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays & Gages >> Diagnostic Information and Procedures >> Engine Oil Pressure Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

IMPORTANT: Do not turn the key to the crank position or engage the starter at any time during diagnosis.
  1. Ignition OFF, disconnect the harness connector at the engine oil pressure (EOP) switch.
  2. Ignition ON, verify the scan tool Engine Oil Pressure Switch parameter is OK.
    • If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the ECM.
  3. Ignition ON, install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool Engine Oil Pressure Switch parameter is Low.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM/PCM.
  4. If all circuits test normal, replace the engine oil pressure switch.
scientia non olet · About LEMON Manuals