RDX L4-2.3L Turbo (2008)
Fuel Gauge Sender: Testing and Inspection
Fuel Gauge Sending Unit Test
Fuel Gauge Sending Unit Test
NOTE: For the fuel gauge system circuit diagram, refer to the Gauges Circuit Diagram.
1. Check the No. 10 METER (7.5 A) fuse in the 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. Fold the rear seat down, then remove the left rear door sill trim.
5. Pull back the carpet to expose the access panel.
6. Remove the access panel (A) from the left side of the floor.
7. Disconnect the fuel tank unit 4P connector (B).
8. Remove the fuel tank unit from the fuel tank.
NOTE: If the fuel tank is full, drain the fuel.
9. Measure resistance between the No. 1 and No. 3 terminals of the fuel tank unit 4P connector with the float at E (EMPTY), LOW (LOW FUEL
INDICATOR), and F (FULL) positions.
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If you do not get the Following readings, replace the fuel gauge sending unit.
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If the fuel gauge sending unit test is OK, do the secondary fuel gauge sending unit test.
NOTE: Remove the No. 23 BACK UP (10 A) fuse from the under-hood fuse/relay box for at least 30 seconds after completing troubleshooting,
otherwise it may take up to 20 minutes for the fuel gauge to indicate the correct fuel level.
