Fuel Gauge Sender: Testing and Inspection
Secondary Fuel Gauge Sending Unit Test
1. Remove the secondary fuel gauge sending unit from the fuel tank Secondary Fuel Gauge Sending Unit Replacement.
2. 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.
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.