DTC P10C4:00 [PCM (SKYACTIV-D)]

System malfunction location	Fuel pressure sensor (integrated with fuel injector No.2) circuit range/performance problem
Detection condition	• With all of the following conditions met, the PCM detects that the difference between the value of the fuel pressure sensor (integrated with fuel injector No.2) and the value of the fuel pressure sensor for each cylinder is 33 MPa or more for a continuous 6 s. ― Battery positive voltage: 8.0 V or more ― Diesel particulate filter regeneration control is not performed ― Specified time has elapsed after ignition is switched ON (engine off or on) ― The following DTCs are not detected • Fuel pressure sensor: P10C2:00, P10C3:00, P10C5:00, P10C6:00, P10C7:00, P10C8:00, P10C9:00, P10CA:00, P10CB:00, P10CC:00 • Fuel injector: P2696:00, P268C:00, P268D:00, P268E:00, P268F:00 • LIN communication system: U1201:00, U1202:00, U1203:00, U1204:00
Fail-safe	• Not applicable
Possible cause	• Fuel injector No.2 connector or terminal malfunction • PCM connector or terminal malfunction • Fuel pressure sensor (integrated with fuel injector No.2) malfunction • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

System malfunction location

Fuel pressure sensor (integrated with fuel injector No.2) circuit range/performance problem

Detection condition

• With all of the following conditions met, the PCM detects that the difference between the value of the fuel pressure sensor (integrated with fuel injector No.2) and the value of the fuel pressure sensor for each cylinder is 33 MPa or more for a continuous 6 s.

― Battery positive voltage: 8.0 V or more

― Diesel particulate filter regeneration control is not performed

― Specified time has elapsed after ignition is switched ON (engine off or on)

― The following DTCs are not detected

• Fuel pressure sensor: P10C2:00, P10C3:00, P10C5:00, P10C6:00, P10C7:00, P10C8:00, P10C9:00, P10CA:00, P10CB:00, P10CC:00

• Fuel injector: P2696:00, P268C:00, P268D:00, P268E:00, P268F:00

• LIN communication system: U1201:00, U1202:00, U1203:00, U1204:00

Fail-safe

• Not applicable

Possible cause

• Fuel injector No.2 connector or terminal malfunction

• PCM connector or terminal malfunction

• Fuel pressure sensor (integrated with fuel injector No.2) malfunction

• PCM malfunction

System wiring diagram

• Not applicable

Connector diagram

• Not applicable

• 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 • Record the freeze frame data/snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
2	VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY • Verify related Service Bulletins, on-line repair information, or Service Information availability. • Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
3	INSPECT FOR OTHER RELATED DTCs • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D)].)
No	Go to the next step.
4	INSPECT FUEL INJECTOR No.2 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.
5	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.
6	INSPECT FUEL PRESSURE SENSOR (INTEGRATED WITH FUEL INJECTOR No.2) 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. ― Switch the ignition ON (engine off) and leave for 1 min. ― After the engine is started, wait for 10 s while idling. • 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.

Step

Inspection

Results

Action

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

• Record the freeze frame data/snapshot data.

Note

• Recording can be facilitated using the screen capture function of the PC.

—

Go to the next step.

VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY

• Verify related Service Bulletins, on-line repair information, or Service Information availability.

• Is any related Information available?

Yes

Perform repair or diagnosis according to the available information.

• If the vehicle is not repaired, go to the next step.

Go to the next step.

INSPECT FOR OTHER RELATED DTCs

• Perform the DTC inspection for the PCM.

(See DTC INSPECTION.)

• Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D)].)

Go to the next step.

INSPECT FUEL INJECTOR No.2 CONNECTOR FOR MALFUNCTION

• Inspect the applicable connector and terminal.

(See CONNECTOR INSPECTION.)

• Are the connector and terminal normal?

Yes

Go to the next step.

Repair or replace the malfunctioning location and perform the repair completion verification.

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.

Repair or replace the malfunctioning location and perform the repair completion verification.

INSPECT FUEL PRESSURE SENSOR (INTEGRATED WITH FUEL INJECTOR No.2) FOR MALFUNCTION

• Inspect the applicable part.

(See FUEL INJECTOR INSPECTION [SKYACTIV-D 1.8].)

• Is the part normal?

Yes

Go to the next step.

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.

― Switch the ignition ON (engine off) and leave for 1 min.

― After the engine is started, wait for 10 s while idling.

• 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].)

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.

DTC troubleshooting completed.

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