TEST
ACTION
APPLICABILITY
6
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Oil Pressure Sensor harness connector.
Measure the resistance of the Sensor Ground circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Replace the Oil Pressure Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Repair the Sensor Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
7
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Oil Pressure Sensor harness connector.
Measure the resistance of the Oil Pressure Sensor Signal circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 8
No
→ Repair the Oil Pressure Sensor Signal circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
8
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Oil Pressure Sensor harness connector.
Measure the resistance between ground and the Oil Pressure Sensor Signal circuit.
Is the resistance above 1000 ohms?
All
Yes
→ Go To 9
No
→ Repair the Oil Pressure Sensor Signal circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
9
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Oil Pressure Sensor harness connector.
Measure the resistance between Sensor Ground and the Oil Pressure Sensor Signal
circuit.
Is the resistance above 1000 ohms?
All
Yes
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Repair the Oil Pressure Sensor Signal circuit for a short to the
Sensor Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
103
DRIVEABILITY - DIESEL
P0520- OIL PRESS SENSOR CIRCUIT MALF PLAUSIBILITY —
Continued