TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the Water In Fuel Sensor harness connector.
Measure the resistance between Sensor Ground and the Water In Fuel Sensor Signal
circuit.
Is the resistance above 100 kohms?
All
Yes
→
Replace and program the PCM in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Repair the Water In Fuel Sensor Signal circuit for a short to the
Sensor Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
5
Turn the ignition off.
Disconnect the Water In Fuel Sensor harness connector.
Turn the ignition on.
Connect a jumper wire across the Water In Fuel Sensor harness connector cavities 1
and 2.
Observe the Water In Fuel Lamp for at least 30 seconds.
Is the lamp on?
All
Yes
→
Replace the Water In Fuel Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Go To
6
6
Turn the ignition off.
Disconnect the Water In Fuel Sensor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance of the Water In Fuel Sensor Signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
7
No
→
Repair the Water In Fuel Sensor Signal circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
7
Turn the ignition off.
Disconnect the Water In Fuel Sensor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance of the Sensor Ground circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Replace and program the PCM in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Repair the Sensor Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
8
Turn the ignition off.
Remove and inspect the Water In Fuel Lamp bulb.
Is the bulb OK?
All
Yes
→
Replace the Instrument Cluster.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Replace the Water In Fuel Lamp bulb.
Perform ROAD TEST VERIFICATION - VER-2.
272
DRIVEABILITY - DIESEL
*CHECKING THE WATER IN FUEL LAMP OPERATION —
Continued