Symptom:
*LOW OIL PRESSURE INDICATOR ALWAYS ON
POSSIBLE CAUSES
ENGINE OIL PRESSURE SWITCH
ENGINE OIL PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
POWERTRAIN CONTROL MODULE
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1 NOTE: Ensure that Engine oil pressure is within normal operating range.
Refer to the Service Information for specifications.
Allow the engine to idle.
With the DRBIIIt in Sensors, read the Engine Oil Pressure Switch state.
Does the Engine Oil Pressure Switch status read 9Closed9?
All
Yes → Go To 2
No → Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Engine Oil Pressure Switch harness connector.
With the DRBIIIt in Sensors, read the Engine Oil Pressure Switch status.
Does the Engine Oil Pressure Switch status read 9Closed9?
All
Yes → Go To 3
No → Replace the Engine Oil Pressure Switch in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Engine Oil Pressure Switch harness connector.
Disconnect the PCM (C1 connector on 2.0L equipped vehicles) harness connector.
Measure the resistance between ground and the Engine Oil Pressure Switch Sense
circuit.
Is the resistance below 5.0 ohms?
All
Yes → Repair the Engine Oil Pressure Switch Sense circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No → Replace the Powertrain Control Module in accordance with the
Service Information.
166
INSTRUMENT CLUSTER
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