Mazda CX-7 2007 Workshop Manual page 871

Brake pressure retention
Command name
V_TRC_L
V_TRC_R
V_STB_L
V_STB_R
LF_INLET
LF_OUTLET
LR_INLET
LR_OUTLET
RF_INLET
RF_OUTLET
RR_INLET
RR_OUTLET
PMP_MOTOR
Brake pressure reduction
Command name
V_TRC_L
V_TRC_R
V_STB_L
V_STB_R
LF_INLET
LF_OUTLET
LR_INLET
LR_OUTLET
RF_INLET
RF_OUTLET
RR_INLET
RR_OUTLET
PMP_MOTOR
Caution
• To protect the DSC HU/CM, the solenoid valve and the pump motor used during active command
mode stay on for only 10 s or less each time they are switched on.
Note
• When working with two people, one should press on the brake pedal, and the other should attempt to
rotate the wheel being inspected.
4. Send the command while depressing on the brake pedal and attempting to rotate the wheel being inspected.
5. While brake pressure is maintained and a DSC HU/CM operation click sound is heard, confirm that the wheel
does not rotate. While brake pressure is being reduced and an DSC HU/CM operation click sound is heard,
confirm that the wheel rotates.
• Performing the inspection above determines the following:
— The DSC HU/CM brake lines are normal.
— The DSC HU/CM hydraulic system is not significantly abnormal (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.
— Malfunction with intermittent occurrence of the above items
— Malfunction of DSC HU/CM input system wiring harnesses and parts
— Extremely small leaks in the DSC HU/CM internal hydraulic system
DYNAMIC STABILITY CONTROL
LF
ON
OFF
LF
ON
OFF
Inspected wheels
RF LR
OFF
OFF
OFF
ON
ON
OFF
OFF
Inspected wheels
RF LR
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
RR
OFF
04-15
ON
OFF
RR
OFF
ON
04-15–5