Diagnostic procedure
STEP
|
INSPECTION
|
ACTION
|
|
---|---|---|---|
1
|
INSPECT DSC HU/CM TO BRAKE SWITCH FOR OPEN CIRCUIT
• Turn ignition key to OFF.
• Disconnect DSC HU/CM and brake switch connector
• Inspect continuity DSC HU/CM terminal L and brake switch
• Is there continuity?
|
Yes
|
Go to next step.
|
No
|
Repair or replace harness for open circuit between DSC HU/CM and brake switch, then go to next step.
|
||
2
|
INSPECT DSC HU/CM TO BRAKE SWITCH FOR SHORT TO GROUND
• Turn ignition key to OFF.
• Inspect continuity DSC HU/CM terminal L and ground
• Is there continuity?
|
Yes
|
Repair or replace harness for open circuit between DSC HU/CM and brake switch, then go to next step.
|
No
|
Go to next step.
|
||
3
|
INSPECT BRAKE SWITCH
• Inspect bake switch.
• Is it okay?
|
Yes
|
Go to next step.
|
No
|
Replace bake switch, then go to next step.
|
||
4
|
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory.
(See Clearing DTCs Procedures.)
• Is same DTC present?
|
Yes
|
Replace bake switch, then go to next step.
|
No
|
Go to next step.
|
||
5
|
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
|
Yes
|
Go to applicable DTC inspection.
|
No
|
Troubleshooting completed.
|