DTC C0089:64 [DSC HU/CM]

id040262906500

DTC
C0089:64
Without Off-road Traction Assist
•  TCS OFF switch
With Off-road Traction Assist
•  Off-road Traction Assist switch
DETECTION CONDITION
•  TCS OFF switch (Without Off-road Traction Assist)/Off-road Traction Assist switch (With Off-road Traction Assist) 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 TCS OFF switch (Without Off-road Traction Assist)/Off-road Traction Assist switch (With Off-road Traction Assist) is pressed and held for 10 s or more
•  Short to ground circuit in wiring harness between instrument cluster terminal 1V and cluster switch terminal D
•  Cluster switch malfunction
?  TCS OFF switch malfunction (Without Off-road Traction Assist)
?  Off-road Traction Assist switch malfunction (With Off-road Traction Assist)
•  Poor connection at each connector
•  DSC HU/CM malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY INSTRUMENT CLUSTER DTC
•  Using the M-MDS, perform the instrument cluster DTC inspection.
•  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 TCS OFF SWITCH (WITHOUT OFF-ROAD TRACTION ASSIST)/OFF-ROAD TRACTION ASSIST SWITCH (WITH OFF-ROAD TRACTION ASSIST) CIRCUIT FOR SHORT TO GROUND CIRCUIT
•  Switch the ignition OFF.
•  Disconnect the cluster switch connector.
•  Inspect for continuity between cluster switch terminal D (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 1V—cluster switch terminal D.
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 TCS OFF SWITCH (WITHOUT OFF-ROAD TRACTION ASSIST)/OFF-ROAD TRACTION ASSIST SWITCH (WITH OFF-ROAD TRACTION ASSIST)
•  Inspect TCS OFF switch (Without Off-road Traction Assist)/Off-road Traction Assist switch (With Off-road Traction Assist).
•  Is the TCS OFF switch (Without Off-road Traction Assist)/Off-road Traction Assist switch (With Off-road Traction Assist) normal?
Yes
Go to the next step.
No
Replace the cluster switch, then go to the next step.
(See CLUSTER SWITCH REMOVAL/INSTALLATION.)
4
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Reconnect all disconnected connectors.
•  Using the M-MDS, clear the DTC from the DSC HU/CM.
•  Using the M-MDS, perform the DSC HU/CM DTC inspection.
•  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
VERIFY NO DTC IS PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [DSC HU/CM].)
No
DTC troubleshooting completed.