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

id0602a6817800

Outline

System malfunction location

EPS configuration

Detection condition

•  Electric Power Steering (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) CONTROL MODULE].)

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 main power OFF.

•  Switch the main power ON (READY off or on), and maintain this condition for approx. 1 min.

•  Switch the main power OFF, and maintain this condition for approx. 3 s.

•  Switch the main power ON (READY off or on).

—

Go to the next step.

2

VERIFY ELECTRIC POWER STEERING (EPS) CONTROL MODULE DTC

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

•  Using the M-MDS, perform the Electric Power Steering (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.

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 Electric Power Steering (EPS) control module.
(See CLEARING DTC.)

•  Using the M-MDS, perform the Electric Power Steering (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 [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 Electric Power Steering (EPS) control module.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

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) CONTROL MODULE].)

No

DTC troubleshooting completed.

System malfunction location		EPS configuration
Detection condition		• Electric Power Steering (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) CONTROL MODULE].)
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 main power OFF. • Switch the main power ON (READY off or on), and maintain this condition for approx. 1 min. • Switch the main power OFF, and maintain this condition for approx. 3 s. • Switch the main power ON (READY off or on).	—	Go to the next step.
2	VERIFY ELECTRIC POWER STEERING (EPS) CONTROL MODULE DTC • Using the M-MDS, clear the DTC from the Electric Power Steering (EPS) control module. (See CLEARING DTC.) • Using the M-MDS, perform the Electric Power Steering (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. 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 Electric Power Steering (EPS) control module. (See CLEARING DTC.) • Using the M-MDS, perform the Electric Power Steering (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 [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 Electric Power Steering (EPS) control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.) 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) CONTROL MODULE].)
Repair completion verification 2	VERIFY NO DTC IS PRESENT • Are any DTCs present?	No	DTC troubleshooting completed.