Secondary Fuel Gauge Sending Unit Test

Remove the rear seat cushion (see REAR SEAT REMOVAL/INSTALLATION ).
Remove the access panel (A) from the right side of the floor.

Fig 1: Identifying Secondary Fuel Gauge Sending Unit 5P Connector And Access Panel
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the secondary fuel gauge sending unit 5P connector (B).
Remove the secondary fuel gauge sending unit from the fuel tank (see SECONDARY FUEL GAUGE SENDING UNIT REPLACEMENT ).

Measure resistance between the No. 1 and No. 2 terminals of the fuel pump 5P connector with the float at E (EMPTY), 1/2 (HALF FULL), and F (FULL) positions.

FLOAT POSITION CHART

Float Position	F 0.3 in. (7.4 mm)	1/2 6.1 in. (155.9 mm)	E 7.7 in. (195.2 mm)
Resistance (Ω)	9 to 11	397.6 to 407.6	485.9 to 495.9

NOTE: Remove the No. 15 BACK UP (40 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. 2 Terminals Of Fuel Pump 5P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.