DTC

C1109:64

DSC OFF switch

DETECTION CONDITION

• DSC OFF is switched ON continuously for 10 s or more is detected.

FAIL-SAFE FUNCTION

• Refer to “Fail-safe function table”. (See DTC TABLE [DSC HU/CM].)

POSSIBLE CAUSE

• The DSC OFF switch is pressed and held for 10 s or more

• Short to ground circuit in wiring harness between instrument cluster terminal V and cluster switch terminal B

• DSC OFF switch malfunction

• Poor connection at each connector

• DSC HU/CM malfunction

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

• Switch the ignition OFF.

• Disconnect the cluster switch connector.

• Inspect for continuity between cluster terminal B (wiring harness-side)—body ground

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between instrument cluster terminal V—cluster switch terminal B.

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to ground circuit.

Go to Step4.

No

Go to the next step.

3

• Inspect the DSC OFF switch.

  (See DSC OFF SWITCH INSPECTION.)

• Is the DSC OFF switch normal?

Yes

Go to the next step.

No

Replace the DSC OFF switch, then go to the next step.

(See DSC OFF SWITCH REMOVAL/INSTALLATION.)

4

• Reconnect all disconnected connectors.

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

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

• Using the M-MDS, perform the DSC HU/CM DTC inspection.

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

• Is the same DTC present?

Yes

Repeat the inspection from Step1.

If the malfunction recurs, replace the DSC HU/CM, then go to the next step.

(See DSC HU/CM REMOVAL/INSTALLATION.)

No

Go to the next step.

5

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

DTC troubleshooting completed.