|
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.
|
||