Component Inspection

Component Inspection

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




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

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