DTC U2300:54/U2300:55/U2300:56 [EPS CONTROL MODULE]

id060230813700

DTC

U2300:54

EPS configuration

U2300:55

U2300:56

DETECTION CONDITION

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

FAIL-SAFE FUNCTION

•  U2300:54, U2300:56

―  Power steering malfunction indicator light does not Illuminate

―  EPS motor current control enabled

•  U2300:55

―  Power steering malfunction indicator light Illuminates

―  EPS motor current control enabled

POSSIBLE CAUSE

•  Configuration procedure is not done properly

•  Correct data cannot be received from instrument cluster

SYSTEM WIRING DIAGRAM

—

Diagnostic Procedure

Step

Inspection

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 [EPS CONTROL MODULE].)

•  Using the M-MDS, perform the EPS control module DTC inspection.
(See DTC INSPECTION [EPS CONTROL MODULE].)

•  Is the same DTC present?

Yes

Repeat the inspection from Step1.

If the malfunction recurs, go to the next step.

No

Go to Step5.

3

VERIFY INSTRUMENT CLUSTER DTC

•  Using the M-MDS, perform the instrument cluster DTC inspection.
(See DTC INSPECTION [INSTRUMENT CLUSTER].)

•  Are any DTCs present?

Yes

Go to applicable DTC inspection.

(See DTC TABLE [INSTRUMENT CLUSTER].)

Repair the instrument cluster, then perform the configuration for the instrument cluster.

(See INSTRUMENT CLUSTER DISASSEMBLY/ASSEMBLY.)

(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA).)

No

Go to the next step.

4

VERIFY EPS CONTROL MODULE DTC

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

•  Using the M-MDS, perform the EPS control module DTC inspection.
(See DTC INSPECTION [EPS CONTROL MODULE].)

•  Is the same DTC present?

Yes

Repeat the inspection from Step1.

If the malfunction recurs, replace the steering column, then go to the next step.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Go to the next step.

5

VERIFY NO DTC IS PRESENT

•  Are any DTCs present?

Yes

Go to applicable DTC inspection.

(See DTC TABLE [EPS CONTROL MODULE].)

No

DTC troubleshooting completed.

DTC	U2300:54	EPS configuration
	U2300:55
	U2300:56
DETECTION CONDITION		• EPS control module detects configuration data not read or data error
FAIL-SAFE FUNCTION		• U2300:54, U2300:56 ― Power steering malfunction indicator light does not Illuminate ― EPS motor current control enabled • U2300:55 ― Power steering malfunction indicator light Illuminates ― EPS motor current control enabled
POSSIBLE CAUSE		• Configuration procedure is not done properly • Correct data cannot be received from instrument cluster
SYSTEM WIRING DIAGRAM		—

Step	Inspection		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 [EPS CONTROL MODULE].) • Using the M-MDS, perform the EPS control module DTC inspection. (See DTC INSPECTION [EPS CONTROL MODULE].) • Is the same DTC present?	Yes	Repeat the inspection from Step1. If the malfunction recurs, go to the next step.
2		No	Go to Step5.
3	VERIFY INSTRUMENT CLUSTER DTC • Using the M-MDS, perform the instrument cluster DTC inspection. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Are any DTCs present?	Yes	Go to applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER].) Repair the instrument cluster, then perform the configuration for the instrument cluster. (See INSTRUMENT CLUSTER DISASSEMBLY/ASSEMBLY.) (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA).)
3		No	Go to the next step.
4	VERIFY EPS CONTROL MODULE DTC • Using the M-MDS, clear the DTC from the EPS control module. (See CLEARING DTC [EPS CONTROL MODULE].) • Using the M-MDS, perform the EPS control module DTC inspection. (See DTC INSPECTION [EPS CONTROL MODULE].) • Is the same DTC present?	Yes	Repeat the inspection from Step1. If the malfunction recurs, replace the steering column, then go to the next step. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
4		No	Go to the next step.
5	VERIFY NO DTC IS PRESENT • Are any DTCs present?	Yes	Go to applicable DTC inspection. (See DTC TABLE [EPS CONTROL MODULE].)
5	VERIFY NO DTC IS PRESENT • Are any DTCs present?	No	DTC troubleshooting completed.