FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Component Inspection





Component Inspection

1. Ignition "OFF"
2. Disconnect Fuel Level Sensor connector and Remove Fuel Sender from fuel tank.
3. Measure resistance between terminal 5 and 6 of Fuel Sender. (Component Side)




4. Does the resistance of Fuel level sensor change with lifting up and down the fuel level float?
YES
1) Substitute with a known - good PCM and check for proper operation.
2) If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known - good Fuel Level Sensor and check for proper operation.
2) If the problem is corrected, replace Fuel Level Sensor and go to "Verification of Vehicle Repair" procedure.

CAUTION:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others.