DTC

C0089:64

DSC OFF switch

DETECTION CONDITION

• Continuous ON signal from the DSC OFF switch for 10 s or more is detected.

FAIL-SAFE FUNCTION

• Permits the control and does not illuminate each warning/indicator light.

POSSIBLE CAUSE

• The driver pressed and held the DSC OFF switch for 10 s or more.

• Short to ground in the wiring harness between the instrument cluster terminal V and DSC OFF switch terminal B

• Open circuit in wiring harness between instrument cluster terminal T and DSC OFF switch terminal C

• DSC OFF switch malfunction

• Poor connection at connectors (female terminal)

STEP

INSPECTION

ACTION

1

• 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].)

No

Go to the next step.

2

• Disconnect the DSC OFF switch.

• Disconnect the instrument cluster connector.

• Inspect for continuity between the DSC OFF switch connector terminal B (vehicle harness-side) and body ground.

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the DSC OFF switch connector terminal B (vehicle harness-side) and instrument cluster connector terminal V (vehicle harness-side).

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.

• Repair or replace the malfunctioning part.

If there is no common connector:

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

Go to Step 5.

No

Go to the next step.

3

• Inspect for continuity between the DSC OFF switch connector terminal C (vehicle harness-side) and instrument cluster connector terminal T (vehicle harness-side).

• Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between the DSC OFF switch connector terminal C (vehicle harness-side) and instrument cluster connector terminal T (vehicle harness-side).

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 an open circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has an open circuit.

Go to Step 5.

4

• 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.)

5

• Reconnect all disconnected connectors.

• Clear the DTCs from the memory.

  (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

• Are the same DTCs present?

Yes

Repeat the inspection from Step 1.

No

Go to the next step.

6

• Are any other DTCs output?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

No

DTC troubleshooting completed.