DTC C1093 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2800700

DTC | C1093 | DSC OFF switch system
DETECTION CONDITION | • Continuous ON signal from the DSC OFF switch for 5 s or more is detected.
POSSIBLE CAUSE | • Short to ground in the wiring harness between the DSC HU/CM terminal P and the DSC OFF switch terminal A (L.H.D.) or C (R.H.D.) • DSC OFF switch malfunction • The driver pressed and held the DSC OFF switch for 5 s or more.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT DSC HU/CM TO DSC OFF SWITCH FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Disconnect DSC HU/CM and DSC OFF switch connector. • Inspect for continuity between the DSC HU/CM terminal P and ground. • Is there continuity? | Yes | Repair or replace the wiring harness for short to ground between DSC HU/CM terminal P and DSC OFF switch terminal A (L.H.D.) or C (R.H.D.), then go to the next step.
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 TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) • Is the same DTC present? (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) | Yes | 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 AFTER REPAIR PROCEDURE • Are any other DTCs present? (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) | Yes | Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
No | DTC troubleshooting completed.