Secondary Fuel Gauge Sending Unit Test

Remove the secondary fuel gauge sending unit from the fuel tank (see Secondary Fuel Gauge Sending Unit Replacement ).

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

FLOAT POSITION AND SPECIFICATIONS

Float Position	F 0.7 in (17.4 mm)	1/2 6.8 in (171.6 mm)	E 7.7 in (195.2 mm)
Resistance (Ω)	9 to 11	445.0 to 455.0	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 1: Measuring Resistance Between No. 1 And No. 2 Terminals Of Secondary Fuel Gauge Sending Unit 5P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.