Possible DTC : P0230
＊ CC-CODE
C004 (Plausibility error)
After run mode or fuel cut off mode, if rail pressure does not drop below the set value within set time, error is deteced.
Possible causes of trouble :
Contact resistance EFP relay defective EFP defective |
C018 (Line : Short circuit)
Possible causes of trouble :
Short circuit to Bat line, open circuit in wiring EFP relay defective EFP defective |
C019 (Line : Open circuit)
When EFP runs for a second or longer and ignition switch is turned on :
Line to EFP relay was short circuit to GND.
Measure the sensor resistance of pin 1 (+) and pin 2 (-).
Possible causes of trouble :
Short circuit to Bat line, Open circuit in wiring Contact resistance EFP relay defective EFP defective ECU power stage short circuited |
EFP runs for approx. 1 second after switching on ignition. (Delivery noise can be heard)
Check the fuse in engine compartment if EFP does not run.
Ignition off. Check wiring between ECU pin 24 and EFP relay pin 86.
Jump pin 30 and pin 87 at relay frame with fused measurement lead.
Ignition on. EFP must run for apporx. 1 second.
Replace the relay if EFP runs.
Check the supply voltage of EFP.
Voltage is applied to EFP for approx. 1 second when ignition switch is turned on.
Set value : 8 ~ 15V
Replacle the EFP if set value is attained
