Instrument Cluster Pinpoint Test 21: Incorrect Fuel Gauge Indication

NOTE:

Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

INSTRUMENT CLUSTER PINPOINT TEST 21 - INCORRECT FUEL GAUGE INDICATION

PINPOINT TEST 21		INCORRECT FUEL GAUGE INDICATION
STEP	INSPECTION		ACTION
1	CHECK FOR DTCS Carry out the instrument cluster self-test Is DTC B1202 or B1204 present?	Yes	Go to step 6.
1		No	Go to step 2.
2	CHECK THE FUEL GAUGE READING Key OFF. Disconnect: Fuel Level Sensor and Pump 0114-02. Connect one lead of the instrument gauge system tester to fuel level sensor and pump 0114-02 pin 1, circuit Y/W, harness side. Connect the other lead to ground. Set the instrument gauge system tester to 160 ohms. Key ON. Set the power switch on the instrument gauge system tester to the ON position. Wait one minute. Read the fuel gauge. The fuel gauge should read full or above. Key OFF. Set the instrument gauge system tester to 15 ohms. Key ON. Key OFF. Read the fuel gauge. The fuel gauge should read empty or below. Does the fuel gauge operate correctly?	Yes	Go to step 3.
2		No	Go to step 5.
3	INSPECT THE FUEL TANK Visually inspect the fuel tank for any damage or deformation. Is the fuel tank OK?	Yes	Go to step 4.
3		No	Install a new fuel tank. See FUEL TANK REMOVAL/INSTALLATION . Test the system for normal operation.
4	INSPECT THE FUEL LEVEL SENSOR AND PUMP ASSEMBLY Visually inspect the fuel pump assembly for damaged wiring or connectors. Visually inspect the float and float rod for damage or obstruction. Are the fuel pump and wiring OK?	Yes	Yes Install a new fuel level sender. Test the system for normal operation.
4		No	Repair as necessary. See FUEL PUMP REMOVAL/INSTALLATION . Test the system for normal operation.
5	CHECK FUEL LEVEL SENSOR AND PUMP GROUND Measure the resistance between the fuel level sensor and pump 0114-02 pin 3, circuit B/W, harness side and ground. Is the resistance less than 5 ohms?	Yes	Go to step 6.
5		No	Repair the circuit. Test the system for normal operation.
6	CHECK CIRCUIT Y/W FOR AN OPEN Key OFF. Disconnect: Instrument Cluster 0922-101. Measure the resistance between the fuel level sensor and pump 0114-02 pin 2, circuit Y/W, harness side and the instrument cluster 0922-101 pin 7, circuit Y/W, harness side. Is the resistance less than 5 ohms?	Yes	Go to step 7.
6		No	Repair the circuit. Test the system for normal operation.
7	CHECK CIRCUIT Y/W FOR A SHORT TO GROUND Measure the resistance between the instrument cluster 0922-101 pin 7, circuit Y/W, harness side and ground. Is the resistance greater than 10,000 ohms?	Yes	Go to step 8.
7		No	Repair the circuit. Test the system for normal operation.
8	CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION Disconnect all instrument cluster connectors. Check for: corrosion pushed-out pins Connect all instrument cluster connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present?	Yes	Install a new instrument cluster. See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .
8		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. Clear the DTCs. REPEAT the instrument cluster self-test.