Honda HR-V Owners & Service Manuals

Honda HR-V: Fuel Gauge Sending Unit Test (2WD)

Test

NOTE: Unless otherwise indicated, illustrations used in the procedure are for USA and Canada models

1. Fuse - Check

  1. Check the No. B21 (10 A) +B BACK UP fuse in the under-hood fuse/relay box and the No. C34 (7.5 A) IG1 METER fuse in the under-dash fuse/relay box before testing.

2. Body Electrical DTCs - Check

  1. Check for body electrical system DTCs.
    • If no problem is found, go to the next procedure (Center Console - Remove).
    • If DTC B1175 or B1176 is indicated, go to the indicated DTC's troubleshooting.

3. Center Console - Remove

4. Access Panel - Remove

Fuel and Emissions - Testing & Troubleshooting

  1. Remove the access panel (A) from the floor
  2. Disconnect the connector (B).

5. Open or Short Wire at Fuel Gauge Sending Unit Connector - Check

Fuel and Emissions - Testing & Troubleshooting

  1. Measure the voltage between fuel tank unit connector terminals No. 2 and No. 4 with the vehicle in ON mode. There should be 12 volt battery voltage.
    • If the voltage is OK, go to step 2.
    • If the voltage is not as specified, check for:
      • a short in the GRY wire to ground.
      • an open in the BRN wire.
  2. Turn the vehicle to the OFF (LOCK) mode.

6. Fuel Tank Unit - Remove - Refer to: Fuel Tank Unit Removal and Installation (2WD), or Fuel Tank Unit Removal and Installation (AWD)

7. Fuel Gauge Sending Unit - Test

Fuel and Emissions - Testing & Troubleshooting

  1. Measure the resistance between fuel tank unit 4P connector terminals No. 2 and No. 4 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 tank unit - Refer to: Fuel Tank Unit Removal and Installation (2WD), or Fuel Tank Unit Removal and Installation (AWD).

USA and Canada models

Fuel and Emissions - Testing & Troubleshooting

Mexico models

Fuel and Emissions - Testing & Troubleshooting

  1. Reconnect the fuel tank unit connector
  2. Remove the No. B21 (10 A) +B BACK UP fuse in the under-hood fuse/relay box and the No. C34 (7.5 A) IG1 METER fuse in the under-dash fuse/relay box for at least 10 seconds, then reinstall it
  3. Turn the vehicle to the ON mode
  4. Check that the pointer of the fuel gauge indicates F with the float at F.
    • If the pointer of the fuel gauge does not indicate F, replace the gauge control module.
    • If the gauge is OK, the test is complete.

NOTE:

  • The pointer of the fuel gauge returns to the bottom of the gauge dial when turned the vehicle in the ACCESSORY or OFF (LOCK) mode, regardless of the fuel level.
  • Remove the No. B21 (10 A) +B BACK UP fuse in the under-hood fuse/relay box or the No. C34 (7.5 A) IG1 METER fuse in the under-dash fuse/relay box for at least 10 seconds after completing the test, otherwise it may take up to 20 minutes for the fuel gauge to indicate the correct fuel level.

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