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DTC P0201:00 [PCM (SKYACTIV-D)]

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Outline

System malfunction location	Fuel injector No.1 circuit operating abnormally
Detection condition	•  The injection verification signal is not detected during the fuel injector No.1 operation when the following conditions are met: ―  Battery positive voltage: 8 V or more
Fail-safe	•  PCM restricts engine torque. •  Limits the maximum engine speed. •  Inhibits the DENOx/DESOx control. •  Inhibits the diesel particulate filter regeneration control. •  Inhibits the EGR control. •  PCM restricts engine-transaxle integration control. (ATX) •  Inhibits engine-stop by operating the i-stop function.
Possible cause	•  Fuel injector No.1 connector or terminal malfunction •  PCM connector or terminal malfunction •  Open circuit in fuel injector No.1 control (-) circuit •  Fuel injector No.1 malfunction •  PCM malfunction

Diagnostic Procedure

Caution

•  If a hand or tool touches the fuel injector terminal, the fuel injector might be damaged. To prevent this, do not touch the terminal.

•  If high-voltage generating parts or components and electronic devices come near a fuel injector, the fuel injector could be damaged. To prevent damage to a fuel injector, always keep high-voltage generating parts or components and electronic devices away from it.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the FREEZE FRAME DATA/snapshot data.	—	Go to the next step.
2	INSPECT FUEL INJECTOR No.1 CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	INSPECT PCM CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	INSPECT FUEL INJECTOR No.1 CONTROL CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT FUEL INJECTOR No.1 FOR MALFUNCTION •  Inspect the applicable part. (See FUEL INJECTOR INSPECTION [SKYACTIV-D 1.8].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See FUEL INJECTOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ―  Perform the KOER self-test. (See DTC INSPECTION.) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.