DTC C1093 [DSC]


B3E040243000W16

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 HU/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.