(Table 238, contd)
Troubleshooting Test Steps
Values Results
7. Create an Open Circuit at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the WIF sensor from the harness.
C. Turn the keyswitch to the ON position.
D. Monitor the active diagnostic code screen on the electronic
service tool. Check and record any active diagnostic codes.
Short circuit Result: A 97-15 (E232 (1)) diagnostic code is active with
the WIF sensor connected. A 97-3 (3547-3) diagnostic
code was active after disconnecting the WIF sensor.
There is a short in the WIF sensor.
Install a replacement sensor. Refer to Disassembly and
Assembly, “Water Separator and Fuel Filter (Primary) -
Remove and Install” for the correct procedure.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: The 97-15 (E232(1)) diagnostic code is still ac-
tive with the WIF sensor disconnected. The WIF sensor
is OK.
Proceed to Test Step 8.
8. Check the Harness for a Short Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the WIF sensor from the harness. Disconnect
the P1 connector.
C. Use a multimeter to measure the resistance between the
WIF sensor signal terminal on the P1 connector and all other
terminals on P1.
D. Reconnect the WIF sensor to the harness. Reconnect the
P1 connector.
Greater than 100
Ohms
Result: The measured resistances are less than 100
Ohms. There is a short in the harness.
Repair: Repair the faulty sensor connector or replace
the faulty harness.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: The measured resistance is greater than 100
Ohms. There is a fault in the ECM.
Contact the Dealer Solutions Network (DSN).
UENR4469-36 453
Circuit Tests
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