DTC U3000:4B [ELECTRIC POWER STEERING (EPS)]

id0602a1816400

Warning

• The EPS control module temperature could become high and may cause a burn. Before performing the work, verify that the steering column is cold.

System malfunction location

EPS control module

Detection condition

•  Abnormal temperature in EPS control module is detected

Fail-safe

•  Refer to “Fail-safe Function Table”. (See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].)

Possible cause

•  Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the EPS control module is more than the specified value.

•  EPS control module malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	EPS control module
Detection condition	• Abnormal temperature in EPS control module is detected
Fail-safe	• Refer to “Fail-safe Function Table”. (See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].)
Possible cause	• Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the EPS control module is more than the specified value. • EPS control module malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

ALLOW VEHICLE TO COOL DOWN

•  Switch the ignition off and allow the vehicle to cool down.

Go to the next step.

Repair completion verification 1

VERIFY DTC TROUBLESHOOTING COMPLETED

•  Using the M-MDS, clear the DTC from the EPS control module.
(See CLEARING DTC.)

•  Using the M-MDS, perform the EPS control module DTC inspection.
(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 EPS control module.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [(E)].)

Go to the next step.

No

Go to the next step.

Repair completion verification 2

VERIFY NO DTC IS PRESENT

•  Are any DTCs present?

Yes

Go to applicable DTC inspection.

(See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].)

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	ALLOW VEHICLE TO COOL DOWN • Switch the ignition off and allow the vehicle to cool down.		Go to the next step.
Repair completion verification 1	VERIFY DTC TROUBLESHOOTING COMPLETED • Using the M-MDS, clear the DTC from the EPS control module. (See CLEARING DTC.) • Using the M-MDS, perform the EPS control module DTC inspection. (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 EPS control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [(E)].) Go to the next step.
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY NO DTC IS PRESENT • Are any DTCs present?	Yes	Go to applicable DTC inspection. (See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].)
Repair completion verification 2	VERIFY NO DTC IS PRESENT • Are any DTCs present?	No	DTC troubleshooting completed.