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DTC C1140 [DSC]

id040220874100

DTC | C1140 | DSC HU/CM (pump)
DETECTION CONDITION | Right front and left rear wheels, or left front and right rear wheel-lock is detected during DSC operation.
POSSIBLE CAUSE | Stuck pump motor in DSC HU/CM

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT DSC HU/CM OPERATION • Perform DSC HU/CM system inspection. (See DSC SYSTEM INSPECTION.) • Is it normal? | Yes | Go to next step.
No | Replace DSC HU/CM, then go to Step 4.
2 | INSPECT CONVENTIONAL BRAKE OPERATION • Inspect brake fluid level. • Start engine. • Perform a road test to verify conventional vehicle braking performance. • Is there any concern. | Yes | Inspect conventional brake line, then go to Step 4.
No | Go to next step.
3 | INSPECT REAR BRAKE DRAGGING • Turn ignition key to OFF. • Jack-up vehicle and support it with safety stand. • Release parking brake. • Turn rear wheel by hand and inspect for rear brake drag. • Is rear brake dragging? | Yes | Repair parking brake system, then go to next step.
No | Go to next step.
4 | VERIFY TROUBLESHOOTING COMPLETED • Clear DTC from memory. (See Clearing DTCs Procedures.) • Start engine and drive vehicle at 10 km/h {6.2 mph} or above at least one minute. • Gradually slow down vehicle and stop. • Is the same DTC present? | Yes | Replace DSC HU/CM, then go to next step.
No | Go to next step.
5 | 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.