Cabin Compartment Node (CCN)

P0463-FUEL LEVEL SENSOR 1 CIRCUIT HIGH





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
The Cluster detects high voltage on the Fuel Level Sensor 1 circuit.





1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)

NOTE: Before proceeding with this diagnostic procedure, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. (N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE




1. Turn the ignition off.
2. Disconnect the Fuel Pump Module harness connector.
3. Disconnect the Cluster C2 harness connector.
4. Turn the ignition on.
5. Measure the voltage of the (N4) Fuel Level Signal 1 circuit.

Is there any voltage present?

Yes

- Repair the short to voltage in the (N4) Fuel Level Signal 1 circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. FUEL PUMP MODULE
1. Turn the ignition off.
2. Reconnect the Cluster C2 harness connector.
3. Connect a jumper wire between ground and the (N4) Fuel Level Signal 1 circuit in the Fuel Level Sensor 1 harness connector.
4. Turn the ignition on.
5. With the scan tool, read DTCs

Does the scan tool display DTC: P0462 FUEL LEVEL SENSOR 1 CIRCUIT LOW as active?

Yes

- Replace the Fuel Pump Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. (N4) FUEL LEVEL SIGNAL 1 OPEN OR HIGH RESISTANCE




1. Turn the ignition off.
2. Disconnect the Cluster C2 harness connector.
3. Measure the resistance of the (N4) Fuel Level Signal 1 circuit.

Is the resistance below 5.0 Ohms?

Yes

- Go To 5

No

- Repair the (N4) Fuel Level Signal 1 circuit for an open circuit or high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

5. (Z210) GROUND CIRCUIT OPEN OR HIGH RESISTANCE




1. Measure the resistance of the (Z210) Ground circuit.

Is the resistance below 5.0 Ohms?

Yes

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Z210) Ground circuit for an open circuit or high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test.