Dodge ZB 2005 Service Manual page 1241

DRIVEABILITY - GAS
Symptom:
P0463-FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
When Monitored and Set Condition:
P0463-FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
When Monitored: Ignition on and battery voltage above 10.4 volts.
Set Condition: The Fuel Level Sensor signal voltage at the PCM goes above 4.95 volts for
more than 90 seconds.
FUEL LEVEL SENSOR VOLTAGE ABOVE 4.9 VOLTS
FUEL LEVEL SENSOR
(G4) FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(G4) FUEL LEVEL SENSOR SIGNAL CIRCUIT OPEN
(Z2) SENSOR GROUND CIRCUIT OPEN
PCM
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
With the DRBIII , read the Fuel Level Sensor voltage.
Is the Fuel Level Sensor voltage above 4.9 volts?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-
No
2 Turn the ignition off.
Disconnect the Fuel Pump Module electrical harness connector.
Ignition on, engine not running.
Connect a jumper wire between the (G4) Fuel Level Sensor Signal circuit and the (Z2)
Sensor ground circuit at the Fuel Pump Module harness connector.
With the DRBIII , read the Fuel Level Sensor voltage.
Did the Fuel Level Sensor voltage change from above 4.8 volts to below 0.4 of a volt?
Yes → Replace the Fuel Level Sensor.
→ Go To 3
No
NOTE: Remove the jumper wire before continuing.
POSSIBLE CAUSES
ACTION
tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
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APPLICABILITY
All
All