TEST
ACTION
APPLICABILITY
4
Note: Visually inspect the wiring harness leading to the fuel pump module.
Look for any parts of the wiring harness that may be pinched or rubbed
through.
Turn the ignition on.
With the DRBIII
t, monitor the fuel level sensor voltage.
Using the schematic, wiggle the Fuel Pump Module Connector & Harness.
Was there any fuel level sensor voltage change, during the wiggle test?
All
Yes
→
Repair the wiring harness as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
No
→
Go To
5
5
Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Disconnect the PCM harness connector(s).
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Fuel Level Sensor Signal Circuit and ground
(B-).
Is the resistance below 5.0 ohms?
All
Yes
→
Repair the fuel level sensor signal circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
No
→
Go To
6
6
Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Disconnect the PCM harness connector(s).
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Fuel Level Sensor Signal Circuit and the Sensor
Ground Circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Repair the fuel level sensor signal circuit shorted to the sensor
ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
No
→
Go To
7
7
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
181
DRIVEABILITY - GAS
P0462-FUEL LEVEL SENDING UNIT VOLTS TOO LOW —
Continued