DTC U2300:54, U2300:55, U2300:56

EPS configuration

DETECTION CONDITION

• EPS CM detects configuration data not read or data error

FAIL-SAFE FUNCTION

• U2300:54

• Control enabled

• Power steering malfunction indicator light: Not illuminated

• U2300:55

• Control enabled

• Power steering malfunction indicator light: Illuminated

• U2300:56

• Control enabled

• Power steering malfunction indicator light: Not illuminated

POSSIBLE CAUSE

• Module configuration procedure is not done properly

• Correct data cannot be received from instrument cluster

SYSTEM WIRING DIAGRAM

Not applicable

Step

Inspection

Action

1

• 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

• Clear the DTC from the memory.

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

• Is the same DTC present?

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, go to the next step.

No

Go to Step 5.

3

• Switch the ignition off.

• Using the M-MDS, perform the DTC inspection for the instrument cluster.

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Are any DTCs detected?

Yes

Go to applicable DTC inspection.

(See DTC TABLE [INSTRUMENT CLUSTER].)

After repairing the instrument cluster, perform the “INSTRUMENT CLUSTER CONFIGURATION”, then go to the next step.

(See INSTRUMENT CLUSTER CONFIGURATION (USING READ/WRITE FUNCTION).)

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

No

Go to the next step.

4

• Clear the DTC from the memory.

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

• Is the same DTC present?

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the EPS CM, then go to the next step.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Go to the next step.

5

• Are any other DTCs output?

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

Yes

Go to the applicable DTC inspection.

(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

No

DTC troubleshooting completed.