Diagnostic Procedure
DTC U3000:4B (DSC HU/Control Module) DIAGNOSTIC PROCEDURE
| Step |
Inspection |
Results |
Action |
| 1 |
VERIFY IF DSC HU/Control Module TEMPERATURE WAS TEMPORARILY HIGH
- Press down the electric parking brake switch, release the electric parking brake, and leave the vehicle for 30 min or more.
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Perform the following procedure 3 times or more.
- Pull up the electric parking brake switch to operate the electric parking brake.
- Press down the electric parking brake switch to release the electric parking brake.
- Perform the DTC inspection for the DSC HU/Control Module. (See DTC INSPECTION
.)
- Is the same Pending DTC present?
|
Yes |
Go to the next step. |
| No |
System is normal. (Explain to the customer that the protection control was performed by repeatedly operating the electric parking brake.) |
| Repair completion verification 1 |
VERIFY THAT VEHICLE IS REPAIRED
- Clear the DTC recorded in the memory.
(See CLEARING DTC
.)
- Perform the following procedure 3 times or more.
- Pull up the electric parking brake switch to operate the electric parking brake.
- Press down the electric parking brake switch to release the electric parking brake.
- Perform the DTC inspection for the DSC HU/Control Module. (See DTC INSPECTION
.)
- Is the same Pending DTC present?
|
Yes |
Refer to the CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW
to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)]
.)
If the CAN communication is normal, perform the diagnosis from Step 1.
|
| No |
Go to the next step. |
| Repair completion verification 2 |
VERIFY IF OTHER DTCs DISPLAYED
- Perform the DTC inspection. (See DTC INSPECTION
.)
- Are any DTCs displayed?
|
Yes |
Repair the malfunctioning location according to the applicable DTC troubleshooting. |
| No |
DTC troubleshooting completed. |