1

Any of the following lights are not illuminated with the ignition switched ON: (ABS warning light, brake system warning light, TCS/DSC indicator light and/or DSC OFF indicator light)

POSSIBLE CAUSE

• DSC HU/CM does not operate.

• Communication error between DSC HU/CM and instrument cluster

• DSC HU/CM internal malfunction

• Instrument cluster malfunction

STEP

INSPECTION

ACTION

1

• Retrieve the DSC HU/CM DTC using the M-MDS.

  (See DTC INSPECTION [DSC HU/CM].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC INSPECTION [DSC HU/CM].)

No

Go to the next step.

2

• Switch the ignition ON.

• Are other warning and indicator lights illuminated?

Yes

Go to the next step.

No

Inspect the instrument cluster for power supply and ground circuit.

(See INSTRUMENT CLUSTER INSPECTION.)

• If there is a malfunction, repair or replace any malfunctioning parts according to the inspection result.

  (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

3

• Inspect connection of the DSC HU/CM connector.

• Is the DSC HU/CM connector connected securely?

Yes

Go to the next step.

No

Connect the DSC HU/CM connector securely, then go to the next step.

4

• Is there a poor connection in the DSC HU/CM, instrument cluster, or related-connector terminal?

Yes

Repair the poor connection location of the terminal.

No

Go to the next step.

5

• Retrieve the DSC HU/CM DTC using the M-MDS.

  (See DTC INSPECTION [DSC HU/CM].)

• Is the DTC U0001:88 present?

Yes

Go to the next step.

No

Inspect the instrument cluster.

(See INSTRUMENT CLUSTER INSPECTION.)

• If there is malfunction, replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

6

• Retrieve the DSC HU/CM DTC using the M-MDS.

  (See DTC INSPECTION [DSC HU/CM].)

• Is the DTC U0100:00, U0101:00, U0104:00, U0114:00, U0131:00, U0140:00, U0151:00, U0155:00, or U0235:00 present?

Yes

Go to the applicable DTC inspection. (Communication error between each module (CAN))

(See DTC U0001:88/U0100:00/U0101:00/U012B:00/U0131:00/U0151:00/U0155:00 [DSC HU/CM].)

No

Inspect the instrument cluster.

(See INSTRUMENT CLUSTER INSPECTION.)

• If there is malfunction, replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.))