DTC C1093 [DSC]

id040220800700

DTC

C1093

DSC OFF switch

DETECTION CONDITION

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

POSSIBLE CAUSE

• The driver pressed and held the DSC OFF switch for 10 s or more.
• Short to ground in the wiring harness between DSC OFF switch and DSC HU/CM terminal AD
• DSC OFF switch malfunction
• Poor connection at connectors (female terminal)

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT DSC OFF SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND
• Turn the ignition switch off.
• Disconnect the DSC HU/CM connector.
• Inspect for continuity between DSC HU/CM connector (vehicle harness-side) terminal AD and body ground.
• Is there continuity?
Yes
Repair or replace the wiring harness, then go to Step 3.
No
Go to the next step.
2
INSPECT DSC OFF SWITCH
• Inspect the DSC OFF switch.
• Is the DSC OFF switch normal?
Yes
Go to the next step.
No
Replace the DSC OFF switch, then go to the next step.
3
VERIFY THAT THE SAME DTC IS NOT PRESENT
• Reconnect all disconnected connectors.
• Clear the DTCs from the memory.
• Are the same DTCs present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the DSC CM, then go to the next step.
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
(See DTC Table.)
No
DTC troubleshooting completed.