Connect GDS to Data Link Connector(DLC).
IG KEY "ON" & ENG "OFF".
Perform "Actuation Test" for High Pressure Fuel Pump.
Fig.1) High Pressure Fuel Pump Control Actuation Test
IG Key "OFF".
Disconnect High Pressure Fuel Pump connector.
Measure resistance between power and control terminal of the High Pressure Fuel Pump. (Component Side)
Specification : Approx. 0.6Ω at 30°C(86 °F)
Fig.2) Resistance of FPR
Fuel Pressure Regulator performance check by measuring voltage and current.
Back probe and measure voltage by using and connecting channel A (+) voltage probe to High side and channel A (-) voltage prove to Low side.
Measure operation current by using Low Current Sensor Module.
Fig.3) Engine Idle after Warm Up
Fig.4) Approx. 2000rpm
Does the High Pressure Fuel Pump operate properly or is the measured value within specification? (Check variation)
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Carefully re-do this troubleshooting guide steps. ▶ If problem still occurs, replace FPR and then go to "Verification of Vechicle Repair" procedure. |