DSC Control Inspection
- Perform the "Preparation."
- Connect WDS or equivalent to the DLC-2.
- Set up an active command modes inspection according to the combination of commands below.
Pressure retention
PRESSURE RETENTION REFERENCECommand name Wheels Inhibition of understeer tendency control Inhibition of oversteer tendency control LF RF LR RR LF_TC_VLV ON OFF ON RF_TC_VLV OFF ON OFF LF_DSC_V OFF RF_DSC_V ABS_POWER ON 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 ON PMP_MOTOR ON NOTE:- To protect the DSC HU/CM, the solenoid valve used for simulations and the ABS motor stay on for 10 s each time they are switched on.
- Send the command while attempting to rotate the wheel being inspected.
- When pressure is being maintained, and a click sound indicating the solenoid is operating comes from the DSC HU/CM, confirm that the wheel does not rotate.
- Performing the inspections above determines the following.
- The DSC HU/CM brake lines are normal
- The DSC HU/CM hydraulic system is not significantly abnormal
- The DSC HU/CM wiring is normal
- Output system harness in DSC HU/CM (solenoid, relay) are normal
- However, the following items cannot be checked.
- The DSC HU/CM input system harness and parts
- Extremely small leaks in the DSC HU/CM internal hydraulic system
- Unusual intermittent occurrences in the above items
- Performing the inspections above determines the following.