DTC P2C68:00 [PCM (e-SKYACTIV)]

System malfunction location	Electric water pump system: Motor stuck
Detection condition	• The PCM detects that the motor is stuck due to foreign matter inside the electric water pump.
Fail-safe	• Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [PCM (e-SKYACTIV)].)
Possible cause	• Electric water pump malfunction • Coolant malfunction ― Coolant freezing ― Use of unspecified coolant • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

System malfunction location

Electric water pump system: Motor stuck

Detection condition

• The PCM detects that the motor is stuck due to foreign matter inside the electric water pump.

Fail-safe

• Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [PCM (e-SKYACTIV)].)

Possible cause

• Electric water pump malfunction

• Coolant malfunction

― Coolant freezing

― Use of unspecified coolant

• PCM malfunction

System wiring diagram

• Not applicable

Connector diagram

• Not applicable

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION • Record the snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
2	INSPECT ELECTRIC WATER PUMP FOR MALFUNCTION • Inspect the applicable part. (See ELECTRIC WATER PUMP INSPECTION.) • Is the part normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (See ELECTRIC WATER PUMP REMOVAL/INSTALLATION.)
3	VERIFY IF MALFUNCTION RELATED TO COOLANT AFFECTS DIAGNOSTIC RESULTS • Inspect the following: ― Is the system filled with the specified coolant? ― Is there the possibility of freezing (low coolant concentration)? ― Has foreign matter penetrated the coolant? • Are all items normal?	Yes	Go to the next step.
No	Replace the coolant and perform the repair completion verification 1. (Advise the customer to use specified coolant used.)
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. Warning • While performing this step, always operate the vehicle in a safe and lawful manner. • When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. ― Drive the vehicle under the snapshot data condition. • 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 [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) 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.)
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 snapshot data.

Note

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

—

Go to the next step.

INSPECT ELECTRIC WATER PUMP FOR MALFUNCTION

• Inspect the applicable part.

(See ELECTRIC WATER PUMP INSPECTION.)

• Is the part normal?

Yes

Go to the next step.

Repair or replace the malfunctioning location and perform the repair completion verification 1.

(See ELECTRIC WATER PUMP REMOVAL/INSTALLATION.)

VERIFY IF MALFUNCTION RELATED TO COOLANT AFFECTS DIAGNOSTIC RESULTS

• Inspect the following:

― Is the system filled with the specified coolant?

― Is there the possibility of freezing (low coolant concentration)?

― Has foreign matter penetrated the coolant?

• Are all items normal?

Yes

Go to the next step.

Replace the coolant and perform the repair completion verification 1.

(Advise the customer to use specified coolant used.)

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.

Warning

• While performing this step, always operate the vehicle in a safe and lawful manner.

• When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.

― Drive the vehicle under the snapshot data condition.

• 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 [L.H.D. (E)].)

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)

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.)

Go to the next step.