DTC C0089:64 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2906500

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

•  Refer to “Fail-safe Function Malfunction Contents”. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)].)

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 DSC OFF switch terminal C and body ground

•  DSC OFF switch malfunction

•  Poor connection at connectors (female terminal)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY INSTRUMENT CLUSTER DTC • 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
1		No	Go to the next step.
2	INSPECT DSC OFF SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND • 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.
2		No	Go to the next step.
3	INSPECT DSC OFF SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between the DSC OFF switch connector terminal C (vehicle harness-side) and body ground. • Is there continuity?	Yes	Go to the next step.
3		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 body ground. 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 DSC OFF SWITCH • Inspect the DSC OFF switch. (See DSC OFF SWITCH INSPECTION.) • Is the DSC OFF switch normal?	Yes	Go to the next step.
4		No	Replace the DSC OFF switch, then go to the next step. (See DSC OFF SWITCH REMOVAL/INSTALLATION.)
5	VERIFY DTC TROUBLESHOOTING COMPLETED • Using the M-MDS, clear the DTC from the DSC HU/CM. (See CLEARING DTC [DYNAMIC STABILITY CONTROL (DSC)].) • Using the M-MDS, perform the DSC HU/CM DTC inspection. (See DTC INSPECTION [DYNAMIC STABILITY CONTROL (DSC)].) • Is the same DTC present?	Yes	Repeat the inspection from Step1.
5		No	Go to the next step.
6	VERIFY NO DTC IS PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)].)
6	VERIFY NO DTC IS PRESENT • Are any DTCs present?	No	DTC troubleshooting completed.

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		• Refer to “Fail-safe Function Malfunction Contents”. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)].)
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 DSC OFF switch terminal C and body ground • DSC OFF switch malfunction • Poor connection at connectors (female terminal)