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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. (See
ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)]
.)
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. REFERENCE CHART
| 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_NLET |
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