Symptom:
FUEL LEVEL SENSOR OPEN
When Monitored and Set Condition:
FUEL LEVEL SENSOR OPEN
When Monitored: With the ignition on. (Customer Complaint: fuel gauge displays empty)
Set Condition: The Instrument Cluster monitors the Fuel Level Sensor Signal circuit
resistance. If the Cluster detects a resistance greater than 1500 ohms or less than 25 ohms
for 18 seconds, this code will set.
POSSIBLE CAUSES
INTERMITTENT CONDITION
FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
FUEL LEVEL SENSOR SIGNAL CIRCUIT OPEN
FUEL PUMP MODULE GROUND CIRCUIT OPEN
FUEL LEVEL SENSOR
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase DTC’s.
Cycle the ignition off and then back on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9Fuel Level Sensor Open9?
All
No → Test complete. DTC is intermittent. Road test the vehicle and
recheck forDTC’s. If the code returns,rerun thistest. Refer toany
Technical Service Bulletins (TSB) that may aply. Inspect related
harness and connectors.
Perform BODY VERIFICATION TEST - VER 1.
Yes → Go To 2
2 Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Disconnect the Instrument Cluster harness connector.
Check connectors - Clean/repair as necessary.
Turn the ignition on.
NOTE: The ignition must be turned off for at least 10 minutes to allow the
cluster to go to (sleep( before proceeding with this test.
Measure the voltage between the Fuel Level Sensor Signal circuit and ground.
Is there any voltage present?
All
Yes → Repair the Fuel Level Sensor Signal circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 3
146
INSTRUMENT CLUSTER
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