P0460

B : B1201, P0460 Fuel Sender Circuit Failure

B1: CHECK THE VOLTAGE SUPPLY TO THE FUEL LEVEL SENSORS
1. Switch the ignition to the RUN position.
2. Measure the voltage at the fuel level sensor electrical connector between:
- FP3 pin 4, (NR) and GROUND
- FP4 pin 4, (NR) and GROUND

Is the voltage greater than 10.5 Volts?

Yes
Go to B2

No
Go to B4

B2: CHECK THE GROUND SUPPLY TO THE FUEL LEVEL SENSORS
1. Switch the ignition to the OFF position.
2. Measure the resistance at the fuel level sensor electrical connector between:
- FP3 pin 2, (WU) and GROUND
- FP4 pin 2, (WR) and GROUND

Is the resistance less than 0.5 Ohms?

Yes
Go to B3

No
REPAIR the relevant circuit. CLEAR DTC. TEST system for normal operation.

B3: CHECK THE RESISTANCE AT THE RIGHT-HAND SIDE FUEL LEVEL SENSOR
1. REMOVE the right-hand side fuel level sensor.
2. Measure the resistance between the sensor electrical connectors FP4 pin 4 and FP4 pin 2.

Is the resistance between 16 and 160 Ohms?

Yes
INSTALL a new left-hand side fuel level sensor. CLEAR DTC. TEST the system for normal operation.

No
INSTALL a new right-hand side fuel level sensor. CLEAR DTC. TEST the system for normal operation.

B4: CHECK THE CONTINUITY BETWEEN THE FUEL LEVEL SENSOR ELECTRICAL CONNECTOR FP3-4, FP4-4 AND CA103-23 AT THE REAR ELECTRONICS MODULE
1. Switch the ignition to the OFF position.
2. Measure the fuel level sensor positive supply circuit resistance between:
- FP3 pin 4, (NU) and CA103 pin 23, (NR)
- FP4 pin 4, (NR) and CA103 pin 23, (NR)

Is the resistance less than 0.5 Ohms?

Yes
INSTALL a new rear electronic module. CLEAR DTC. TEST the system for normal operation.

No
REPAIR the relevant circuit. CLEAR DTC. TEST the system for normal operation.