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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Engine Oil Pressure Indicator Always On >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the EOP switch.
  2. Ignition ON, verify the scan tool Engine Oil Pressure Switch parameter is Ok.
    • If not Ok, test the signal circuit of the EOP switch for a short to ground. If the circuit tests normal replace the PCM.
  3. Ignition ON, perform the lamp test with the scan tool to turn the engine oil pressure indicator off
    • If the engine oil pressure indicator does not turn off, replace the IPC.
  4. If all circuits test normal, test or replace the EOP switch.
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