Fuel Level Sending Unit Input Short - Chrysler Town and Country 2003 Owner's Manual

Symptom:

FUEL LEVEL SENDING UNIT INPUT SHORT

When Monitored and Set Condition:
FUEL LEVEL SENDING UNIT INPUT SHORT
When Monitored: With the ignition on.
Set Condition: Fuel Level Input to the BCM is less than 2 volts for greater than 62.5
milliseconds.
INTERMITTENT CONDITION
FUEL LEVEL SENDING UNIT
FUEL LEVEL SENSOR SIGNAL SHORTED TO GROUND
BCM
TEST
1 Turn the ignition on.
With the DRBIII , erase DTCs.
Cycle the ignition off and on, leaving ignition key on for at least 15 seconds.
With the DRBIII in Body Computer, read DTCs.
Does the DTC reset?
Yes → Go To 2
→ Go To 5
No
2 Turn the ignition on.
With the DRBIII in Body Computer and then Sensors, monitor the Fuel Sensor.
Disconnect the Fuel Tank Module harness connector.
Does the Fuel Sensor voltage go above 9.5 volts?
Yes → Replace the Fuel Level Sending Unit.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the BCM C3 harness connector.
Disconnect Fuel Tank Module harness connector.
Measure the resistance of the Fuel Level Sensor Signal circuit in the BCM harness
connector to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Fuel Level Sensor Signal circuit for a short to ground.
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
INSTRUMENT CLUSTER
629
APPLICABILITY
All
All
All