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 cluster switch terminal B •  Open circuit in wiring harness between cluster switch terminal C and body ground •  Cluster switch malfunction ―  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
		No	Go to the next step.
2	INSPECT DSC OFF SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND •  Disconnect the cluster switch. •  Disconnect the instrument cluster connector. •  Inspect for continuity between the cluster switch connector terminal B (wiring 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 cluster switch connector terminal B (wiring harness-side) and instrument cluster connector terminal V (wiring 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 DSC OFF SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT •  Inspect for continuity between the cluster switch connector terminal C (wiring harness-side) and body ground. •  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 cluster switch connector terminal C (wiring 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.
		No	Replace the cluster switch, then go to the next step. (See CLUSTER 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 Pending DTC present?	Yes	Repeat the inspection from Step 1.
		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)].)
		No	DTC troubleshooting completed.