Ground Circuit Inspection

■ Open in circuit check 

1. IG "OFF"
2. Disconnect FPCM harness connector.
3. IG "ON"
4. Measure the voltage between power terminal of FPCM harness connector and chassis ground. (Measurement A)
5. Measure the voltage between power terminal and ground terminal of FPCM harness connector. (Measurement B)

   Specification:  Measurement difference between "Measurement A" and "Measurement B" is less than 200mV

6. Is the measured voltage within specification?

   YES 

   • Go to "POWER CIRCUIT OF FUEL PRESSURE SENSOR INSPECTION " procedure.

   NO 

   • Repair or replace contact resistance or open in FPCM ground circuit. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.