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DTC U2300:54, U2300:55 OR U2300:56 [ELECTRIC POWER STEERING (EPS)]

id0602a1817800

Outline

System malfunction location

EPS configuration

Detection condition

•  EPS control module detects configuration data not read or data error

Fail-safe

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

Possible cause

•  Module configuration procedure is not done properly

•  Correct data cannot be received from body control module (BCM)

System wiring diagram

Not applicable

Connector diagram

Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD CONFIGURATION DATA

•  Switch the ignition off.

•  Switch the ignition ON (engine off or on), and maintain this condition for approx. 1 min.

•  Switch the ignition off, and maintain this condition for approx. 3 s.

•  Switch the ignition ON (engine off or on).

—

Go to the next step.

2

VERIFY EPS CONTROL MODULE DTC

•  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

Repeat the inspection from Step 1.

If the malfunction recurs, go to the next step.

No

Perform the repair completion verification.

3

VERIFY BODY CONTROL MODULE (BCM) DTC

•  Using the M-MDS, perform the body control module (BCM) DTC inspection.
(See DTC INSPECTION.)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

Repair the body control module (BCM), then perform the configuration for the body control module (BCM).

(See CONFIGURATION.)

No

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.

System malfunction location		EPS configuration
Detection condition		• EPS control module detects configuration data not read or data error
Fail-safe		• Refer to “Fail-safe Function Table”.(See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].)
Possible cause		• Module configuration procedure is not done properly • Correct data cannot be received from body control module (BCM)
System wiring diagram		Not applicable
Connector diagram		Not applicable

Step	Inspection	Results	Action
1	RECORD CONFIGURATION DATA • Switch the ignition off. • Switch the ignition ON (engine off or on), and maintain this condition for approx. 1 min. • Switch the ignition off, and maintain this condition for approx. 3 s. • Switch the ignition ON (engine off or on).	—	Go to the next step.
2	VERIFY EPS CONTROL MODULE DTC • 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	Repeat the inspection from Step 1. If the malfunction recurs, go to the next step.
2		No	Perform the repair completion verification.
3	VERIFY BODY CONTROL MODULE (BCM) DTC • Using the M-MDS, perform the body control module (BCM) DTC inspection. (See DTC INSPECTION.) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].) Repair the body control module (BCM), then perform the configuration for the body control module (BCM). (See CONFIGURATION.)
3		No	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.