Component Inspection

Component Inspection

Check fuel pump relay
1. IG "OFF"
2. Disconnect Fuel Pump Relay
3. Measure resistance between battery power supply and power supply to fuel pump motor terminals of fuel pump relay. (Measurement "A")
4. Measure resistance between battery power supply and fuel pump relay control terminals of fuel pump relay. (Measurement "B")
A. Specification :









5. Is the measured resistance within specification ?
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.

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

NO
1) Substitute with a known - good Fuel Pump Relay and check for proper operation.
If the problem is corrected, replace Fuel Pump Relay and go to "Verification of Vehicle Repair" procedure.