DTC C1093 [DSC]

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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. (See DSC OFF SWITCH INSPECTION.) • Is the DSC OFF switch normal? | Yes | Go to the next step.
No | Replace the DSC OFF switch, then go to the next step. (See DSC OFF SWITCH REMOVAL/INSTALLATION.)
3 | VERIFY THAT THE SAME DTC IS NOT PRESENT • Reconnect all disconnected connectors. • Clear the DTCs from the memory. (See Clearing DTCs Procedures.) • 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. (See DSC HU/CM REMOVAL/INSTALLATION.)
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.