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DTC |
C1140 |
DSC HU/CM (pump) |
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DETECTION CONDITION |
Right front and left rear wheels, or left front and right rear wheel-lock is detected during DSC operation.
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POSSIBLE CAUSE |
Stuck pump motor in DSC HU/CM
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Diagnostic procedure
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STEP
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INSPECTION
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ACTION
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1
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INSPECT DSC HU/CM OPERATION
• Perform DSC HU/CM system inspection.
(See DSC SYSTEM INSPECTION.)
• Is it okay?
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Yes
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Go to next step.
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No
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Replace DSC HU/CM, then go to Step 4.
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2
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INSPECT CONVENTIONAL BRAKE OPERATION
• Inspect brake fluid level.
• Start engine.
• Perform a road test to verify conventional vehicle braking performance.
• Is there any concern.
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Yes
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Inspect conventional brake line, then go to Step 4.
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No
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Go to next step.
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3
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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?
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Yes
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Repair parking brake system, then go to next step.
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No
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Go to next step.
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4
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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?
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Yes
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Replace DSC HU/CM, then go to next step.
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No
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Go to next step.
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5
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VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
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Yes
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Go to applicable DTC inspection.
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No
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Troubleshooting completed.
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