DSC Control Inspection
- Perform "Preparation".
- Connect the M-MDS to the DLC-2.
- Set up an active command mode inspection according to the combination of commands below.
CAUTION:
- When operating the solenoid valve and pump motor using the active command mode, make sure to keep the operation time within 2 s to prevent damaging the DSC HU/CM.
Courtesy of MAZDA MOTORS CORP.
BRAKE PRESSURE RETENTION
| Command name |
Inspected wheels |
| Understeer control disabled |
Oversteer control disabled |
| LF |
RF |
LR |
RR |
| LF_TC_PRV |
On |
Off |
On |
| RF_TC_PRV |
Off |
On |
Off |
| LF_TC_SWV |
Off |
| RF_TC_SWV |
| LF_INLET |
Off |
Off |
Off |
On |
| LF_OUTLET |
Off |
| LR_INLET |
On |
| LR_OUTLET |
Off |
| RF_INLET |
On |
| RF_OUTLET |
Off |
| RR_INLET |
On |
| RR_OUTLET |
Off |
| PMP_MOTOR |
On |
- Send the command while rotating the wheel being inspected by hand in a forward direction.
- Confirm that the wheel does not rotate easily while a DSC HU/CM operation click sound is heard.
- Performing the inspection above determines the following:
- The DSC HU/CM brake lines are normal.
- The DSC HU/CM hydraulic system has no significant malfunction (including DSC HU/CM).
- The DSC HU/CM internal electrical parts (solenoid, motor and other parts) are normal.
- The DSC unit and DSC HU/CM output system wiring harnesses (solenoid valve, relay system) are normal.
- However, the following items cannot be verified.
- Intermittent malfunction of the above items
- Malfunction of DSC HU/CM input system wiring harnesses and parts
- Extremely small leakage in the DSC HU/CM internal hydraulic system