DTC

U0423:00

Signal error from instrument cluster

DETECTION CONDITION

• Error detected in signal from instrument cluster via CAN communication.

FAIL-SAFE FUNCTION

• Refer to “Fail-safe function table”. (See DTC TABLE [EPS CONTROL MODULE].)

POSSIBLE CAUSE

• Instrument cluster malfunction

SYSTEM WIRING DIAGRAM

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Step

Inspection

Action

1

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

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [INSTRUMENT CLUSTER].)

DTC troubleshooting completed, then go to the next step.

No

Go to the next step.

2

• Using the M-MDS, clear the DTC from the DSC HU/CM.

  (See CLEARING DTC [EPS CONTROL MODULE].)

• Using the M-MDS, perform the DSC HU/CM 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 instrument cluster, then go to the next step.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

No

Go to the next step.

3

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [EPS CONTROL MODULE].)

No

DTC troubleshooting completed.