Pilot 4WD V6-3.5L (2008)
Fuel Gauge Sender: Testing and Inspection
Fuel Gauge Sending Unit Test
NOTE: For the fuel gauge system circuit diagram, refer to the Gauges Circuit Diagram.
1. Check the No. 9 BACK UP LIGHT, INSTRUMENT LIGHT (10 A) fuse in the driver's under-dash fuse/relay box before testing.
2. Check for body electrical system DTCs.
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If no problem is found, go to step 3.
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If DTC B1175 or B1176 is indicated, go to the indicated DTCs troubleshooting.
3. Turn the ignition switch OFF.
4. Remove the driver's side second row seat.
5. Cut the carpet, being careful not to cut the wire harness underneath it, them remove the access panel from the floor
6. Remove the access panel (A) from the floor.
7. Disconnect the fuel tank unit 5P connector (B).
8. Measure voltage between fuel tank unit 5P connector terminals No. 1 and No. 2 with the ignition switch ON (II). There should be battery voltage.
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If the voltage is OK, go to step 8.
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If the voltage is not as specified, check for:
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a short in the ORN/WHT wire to ground.
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an open in the ORN/WHT or BLK/YEL wire.
9. Turn the ignition switch OFF.
10. Remove the fuel tank unit from the fuel tank.
11. Measure resistance between fuel tank unit 5P connector terminals No. 1 and No. 2 with the float at E (EMPTY), LOW (LOW FUEL
INDICATOR), 1/2 (HALF FULL), and F (FULL) positions. If you do not get the following readings, replace the fuel gauge sending unit.