PINPOINT TEST G251562p1

PINPOINT TEST G251562p1: P0460; FUEL LEVEL SENSOR(S) CIRCUIT RANGE/PERFORMANCE

G251562t1: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 1 FOR HIGH RESISTANCE
1. Disconnect the REM electrical connector, CR04.
2. Disconnect the left-hand fuel level sensor electrical connector, FP04.
3. Measure the resistance between CR04, pin 15 (WR) and FP04, pin 01 (WR).

- Is the resistance greater than 5 Ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t4.

G251562t4: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 1 FOR SHORT TO GROUND
1. Measure the resistance between CR04, pin 15 (WR) and GROUND.

- Is the resistance less than 10,000 Ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t5.

G251562t5: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 1 FOR SHORT TO B+
1. Measure the voltage between CR04, pin 15 (WR) and GROUND.

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t2.

G251562t2: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 2 FOR HIGH RESISTANCE
1. Disconnect the right-hand fuel level sensor electrical connector, FP07.
2. For vehicles without supercharger, measure the resistance between CR04, pin 16 (WU) and FP07, pin 01 (WU).
3. For vehicles with supercharger, measure the resistance between CR04, pin 16 (WU) and FP03, pin 01 (WU).

- Is the resistance greater than 5 Ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t6.

G251562t6: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 2 FOR SHORT TO GROUND
1. Measure the resistance between CR04, pin 16 (WU) and GROUND.

- Is the resistance less than 10,000 Ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t7.

G251562t7: CHECK THE SIGNAL CIRCUIT BETWEEN THE REM AND LEVEL SENSOR 2 FOR SHORT TO B+
1. Measure the voltage between CR04, pin 16 (WU) and GROUND.

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t3.

G251562t3: CHECK THE COMMON CIRCUIT BETWEEN THE REM AND LEVEL SENSORS FOR HIGH RESISTANCE
1. Disconnect the REM electrical connector, CR11.
2. Measure the resistance between CR11, pin 23 (BK) and FP04, pin 03 (BK).
3. Measure the resistance between CR11, pin 23 (BK) and FP07, pin 03 (BK).

- Is either resistance greater than 5 Ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t8.

G251562t8: CHECK THE COMMON CIRCUIT BETWEEN THE REM AND LEVEL SENSORS FOR SHORT TO GROUND
1. Measure the resistance between CR11, pin 23 (BK) and GROUND.

- Is the resistance less than 10,000 Ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t9.

G251562t9: CHECK THE COMMON CIRCUIT BETWEEN THE REM AND LEVEL SENSORS FOR SHORT TO B+
1. Measure the voltage between CR11, pin 23 (BK) and GROUND.

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G251562t10.

G251562t10: CHECK THE SENSOR 1 RESISTANCE EMPTY
1. Remove the left-hand module.
2. Move the sensor float to it's lowest position.
3. Measure the resistance between FP04, pins 01 and 03 to the module.

- Is the resistance 15 Ohms?

-> YES
GO to Pinpoint Test G251562t11.

-> NO
INSTALL a new level sensor, CLEAR the DTC. TEST the system for normal operation.

G251562t11: CHECK THE SENSOR 1 RESISTANCE FULL
1. Move the sensor float to it's highest position.
2. Measure the resistance between FP04, pins 01 and 03 to the module.

- Is the resistance 160 Ohms?

-> YES
GO to Pinpoint Test G251562t12.

-> NO
INSTALL a new level sensor, CLEAR the DTC. TEST the system for normal operation.

G251562t12: CHECK THE SENSOR 2 RESISTANCE EMPTY
1. Remove the right-hand module.
2. Move the sensor float to it's lowest position.
3. For vehicles without supercharger, measure the resistance between FP07, pins 01 and 03 to the module.
4. For vehicles with supercharger, measure the resistance between FP03, pins 01 and 03 to the module.

- Is the resistance 15 Ohms?

-> YES
GO to Pinpoint Test G251562t13.

-> NO
INSTALL a new level sensor, CLEAR the DTC. TEST the system for normal operation.

G251562t13: CHECK THE SENSOR 2 RESISTANCE FULL
1. Move the sensor float to it's highest position.
2. For vehicles without supercharger, measure the resistance between FP07, pins 01 and 03 to the module.
3. For vehicles with supercharger, measure the resistance between FP03, pins 01 and 03 to the module.

- Is the resistance 160 Ohms?

-> YES
Contact dealer technical support for advice on possible REM or instrument cluster failure.

-> NO
INSTALL a new level sensor, CLEAR the DTC. TEST the system for normal operation.