Fuel Gauge Sending Unit: Test

HDS - Connect

DTC - Check

1. Check for DTCs with the HDS. If any of the following DTCs are indicated, troubleshoot the indicated DTCs.

NOTE: If the PGM-FI system's DTC and the body electrical system's DTC are indicated at the same time, troubleshoot the PGM-FI system's DTC first.

PGM-FI system: P0462, P0463
Body electrical system: B1175, B1176

Second Row Seat (Left Side) - Remove - Refer to:
Second Row Seat - Removal and Installation (Captain) or

Second Row Seat - Removal and Installation (Bench)
Fuel Tank Unit - Remove

Fuel Gauge Sending Unit - Test

Courtesy of HONDA, U.S.A., INC.

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 readings according to the chart below, replace the fuel gauge sending unit. Fuel Tank Unit - Disassembly and Reassembly .

2. Reconnect the fuel tank unit connector.

3. Remove the No. A26 (10 A) fuse in the under-hood fuse/relay box and the No. D1 (7.5 A) fuse in the auxiliary under-dash fuse/relay box (with auto idle stop system) or the No. A26 (10 A) fuse in the under-hood fuse/relay box and the No. C29 (7.5 A) fuse in the under-dash fuse/relay box (without auto idle stop system) for at least 10 seconds, then reinstall it.

4. Turn the vehicle to the ON mode.

5. 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 - Removal and Installation .
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 turning the vehicle to the ACCESSORY or OFF (LOCK) mode, regardless of the fuel level.
Remove the No. A26 (10 A) fuse in the under-hood fuse/relay box and the No. D1 (7.5 A) fuse in the auxiliary under-dash fuse/relay box (with auto idle stop system) or the No. A26 (10 A) fuse in the under-hood fuse/relay box and the No. C29 (7.5 A) fuse in the under-dash fuse/relay box (without auto idle stop system) 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.

Float Position	F8.673 in (220.3 mm)	1/25.933 in (150.7 mm)	LOW1.874 in (47.6 mm)	E0.75 in (19 mm)
Resistance (Ω)	19 to21	201 to 211	511.7 to 638.9	772 to788