Check fuel pump relay
IG "OFF"
Disconnect Fuel Pump Relay
Measure resistance between terminal 1 and 2 of Fuel Pump Relay
Measure resistance between terminal 3 and 5 of Fuel Pump Relay
Specification :
Terminal | Continuity |
1~2 | NO |
3~5 | YES (Approx. 70Ω ~ 120Ω) |
Is the measured resistance within specification ?
YES
▶ 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.
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
▶ 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.