Secondary Fuel Gauge Sending Unit Test

1. Fold the rear seat down, then remove the right rear door sill trim (see REAR DOOR SILL AREA ).
2. Pull back the carpet to expose the access panel (see step 9 under CARPET REPLACEMENT ).
3. Remove the access panel (A) from the right side of the floor.
   Fig 1: Identifying Access Panel And Secondary Fuel Gauge Sending Unit 4P Connector

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
4. Disconnect the secondary fuel gauge sending unit 4P connector (B).
5. Remove the secondary fuel gauge sending unit from the fuel tank (see SECONDARY FUEL GAUGE SENDING UNIT REMOVAL/INSTALLATION ).
6. Measure resistance between the No. 1 and No. 3 terminals of the secondary fuel gauge sending unit 4P connector with the float at E (EMPTY), 1/2 (HALF FULL), and F (FULL) positions.

FLOAT POSITION CHART

Float Position	F 9.2 in. (233.8 mm)	1/2 5.4 in. (136.8 mm)	E 0.5 in. (13.7 mm)
Resistance (Ω)	18 to 22	402 to 414	772 to 788

NOTE: Remove the No. 23 BACK UP (10 A) fuse from the under-hood fuse/relay box for at least 10 seconds after completing troubleshooting, otherwise it may take up to 20 minutes for the fuel gauge to indicate the correct fuel level.

Fig 2: Measuring Resistance Between No. 1 And No. 3 Terminals Of Secondary Fuel Gauge Sending Unit 4P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.