Low Oil Pressure Indicator Always On - Dodge 2004 Neon SX2 Diagnostic Manual

INSTRUMENT CLUSTER
Symptom:

*LOW OIL PRESSURE INDICATOR ALWAYS ON

ENGINE OIL PRESSURE SWITCH
ENGINE OIL PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
POWERTRAIN CONTROL MODULE
INSTRUMENT CLUSTER
TEST
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 DRBIII in Sensors, read the Engine Oil Pressure Switch state.
Does the Engine Oil Pressure Switch status read Closed ?
Yes → Go To 2
→ Replace the Instrument Cluster in accordance with the Service
No
2 Turn the ignition off.
Disconnect the Engine Oil Pressure Switch harness connector.
With the DRBIII in Sensors, read the Engine Oil Pressure Switch status.
Does the Engine Oil Pressure Switch status read Closed ?
Yes → Go To 3
→ Replace the Engine Oil Pressure Switch in accordance with the
No
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?
Yes → Repair the Engine Oil Pressure Switch Sense circuit for a short to
→ Replace the Powertrain Control Module in accordance with the
No
POSSIBLE CAUSES
ACTION
Information.
Perform BODY VERIFICATION TEST - VER 1.
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
ground.
Perform BODY VERIFICATION TEST - VER 1.
Service Information.
166
APPLICABILITY
All
All
All