Ist zwar für nen Jeep, aber die Technik dürfte die gleiche sein! Quelle:
https://dodgeforum.com/forum/jeeps/250749-i-need-help-with-two-dtcs-p0463-p1494.html
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 9.9 volts for
more than 90 seconds.
POSSIBLE CAUSES
FUEL PUMP MODULE WIRING HARNESS INTERMITTENT
SENSOR GROUND CIRCUIT OPEN
FUEL LEVEL SENSOR
FUEL LEVEL SENSOR SIGNAL CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRB, read the fuel level sensor voltage.
Is the fuel level sensor voltage above 9.9 volts?
All
Yes ® Go To 2
No ® Go To 6
2 Turn ignition off.
Disconnect the fuel pump module connector.
Connect a jumper wire between the fuel level sensor signal circuit and the sensor
ground circuit at the fuel pump module connector.
Turn ignition on.
With the DRB, read the fuel level sensor voltage.
Is the fuel level sensor voltage below 1.0 volt?
All
Yes ® Replace the fuel level sensor.
Perform the Powertrain Verification Test - Ver 2.
No ® Go To 3
3 Turn ignition off.
Disconnect the fuel pump module connector.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the sensor ground circuit from the PCM connector to
the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 4
No ® Repair the open sensor ground circuit.
Perform the Powertrain Verification Test - Ver 2.
188
DRIVEABILITY
4 Turn ignition off.
Disconnect the fuel pump module connector.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel level sensor signal circuit from the PCM
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 5
No ® Repair the open fuel level sensor signal circuit.
Perform the Powertrain Verification Test - Ver 2.
5 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
All
Repair
Replace the Powertrain Control Module
Perform the Powertrain Verification Test - Ver 2.
6 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 DRBIIIt, 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 the Powertrain Verification Test - Ver 2.
No ® Test Complete.
189
DRIVEABILITY
P0463-FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
Das könnte auch helfen!
https://www.bba-reman.com/content.aspx?content=NEXT_DTC_P0463
