Engine Oil Sensor Water Contamination

ENGINE OIL SENSOR WATER CONTAMINATION






When Monitored and Set Condition
^ When Monitored: With the engine running.
^ Set Condition: Anytime the Powertrain Control Module (PCM) senses the Oil Quality value is above 4.0 mm.

^ Note: The engine oil must be changed before this test can be accurately conducted.

POSSIBLE CAUSES
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
5-VOLT SUPPLY CIRCUIT OPEN
OIL SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
OIL SENSOR SIGNAL CIRCUIT OPEN
OIL SENSOR GROUND CIRCUIT OPEN
WATER IN THE OIL
OIL SENSOR
POWERTRAIN CONTROL MODULE

Diagnostic Test
1. CHECK FOR CURRENT DTC





Turn the ignition on.
With the DRB III, read the PCM DTCs.
Is this DTC preset?
Yes>> For complete diagnosis of this DTC, Engine Oil Sensor Quality Performance
No>> Go To 2

2. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.

Note: Check connectors-Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.

Note: Check for any Technical Service Bulletins that may apply.

Were there any problems found?
Yes>> Repair as necessary.
Perform Powertrain Verification Test - Ver 2
No>> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.