Mazda CX 7. Manual — part 218
DYNAMIC STABILITY CONTROL
04-15–3
04-15
DSC SYSTEM WIRING DIAGRAM
id041500800600
End Of Sie
AE
AA
Y
AB
D
AI
B
I
O
N
P
M
F
E
L
G
H
A
X
W
J
C
E
C
F
A
B
D
BRAKE SWITCH
TSC OFF SWITCH
COMBINED
SENSOR
STEERING
ANGLE
SENSOR
ABS 1 40A
ABS 2 20A
IG 1
CAN_H
CAN_L
BCM
ABS WHEEL-
SPEED SENSOR
RF
LF
RR
LR
CAN
DRIVER
CAN
DRIVER
PCM
TCM
CAN
DRIVER
CAN_H
CAN_L
CAN_H
CAN_L
DLC-2
CAN
DRIVER
BRAKE SYSTEM
WARNING LIGHT
ABS WARNING
LIGHT
TSC OFF LIGHT
DSC INDICATOR
LIGHT
DSC HU/CM
INSTRUMENT CLUSTER
IG SW
BATTERY
DSC 7.5A
acxuuw00002206
1871-1U-06B(04-15).fm 3 ページ 2006年3月15日 水曜日 午前11時16分
DYNAMIC STABILITY CONTROL
04-15–4
DSC SYSTEM INSPECTION
id041500800700
Preparation
1. Verify that battery is fully charged.
2. Turn the ignition switch to the ON position, and verify that the ABS warning light goes out after approx. 3 s.
3. Turn the ignition switch off.
4. Jack up the vehicle and support it evenly on safety stands.
5. Shift to the N position.
6. Verify that all four wheels rotate.
7. Rotate the inspected wheels by hand, and verify there is no brake drag.
• If there is any brake drag, perform regular brake inspection.
• If there is no brake drag, perform DSC HU/CM operation inspection.
ABS Control Inspection
1. Perform “Preparation”.
2. Connect the M-MDS to the DLC-2.
3. Set up an active command mode inspection
according to the combination of commands
below.
DLC-2
acxuuw00001209
1871-1U-06B(04-15).fm 4 ページ 2006年3月15日 水曜日 午前11時16分
DYNAMIC STABILITY CONTROL
04-15–5
04-15
Brake pressure retention
Brake pressure reduction
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
Command name
Inspected wheels
LF
RF
LR
RR
V_TRC_L
OFF
V_TRC_R
V_STB_L
V_STB_R
LF_INLET
ON
OFF
OFF
OFF
LF_OUTLET
OFF
LR_INLET
ON
LR_OUTLET
OFF
RF_INLET
ON
RF_OUTLET
OFF
RR_INLET
ON
RR_OUTLET
OFF
PMP_MOTOR
Command name
Inspected wheels
LF
RF
LR
RR
V_TRC_L
OFF
V_TRC_R
V_STB_L
V_STB_R
LF_INLET
ON
OFF
OFF
OFF
LF_OUTLET
LR_INLET
OFF
ON
LR_OUTLET
RF_INLET
ON
OFF
RF_OUTLET
RR_INLET
OFF
ON
RR_OUTLET
PMP_MOTOR
ON
1871-1U-06B(04-15).fm 5 ページ 2006年3月15日 水曜日 午前11時16分
DYNAMIC STABILITY CONTROL
04-15–6
DSC Control Inspection
1. Perform “Preparation”.
2. Connect the M-MDS to the DLC-2.
3. Set up an active command mode inspection
according to the combination of commands
below.
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.
4. Send the command while rotating the wheel being inspected by hand in a forward direction.
5. 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 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
End Of Sie
DSC HU/CM REMOVAL/INSTALLATION
id041500801000
Caution
• The DSC may not function normally when the DSC HU/CM is replaced. After installation, always
perform the initialization procedures for the DSC HU/CM, combined sensor and the steering angle
sensor. (See 04-15-17 COMBINED SENSOR INITIALIZATION PROCEDURE.) (See 09-40-8
STEERING ANGLE SENSOR INITIALIZATION PROCEDURE.)
• The internal parts of the DSC HU/CM could be damaged if dropped. Be careful not to drop the DSC
HU/CM. Replace the DSC HU/CM if it is subjected to an impact.
1. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
DLC-2
acxuuw00001209
Command name
Inspected wheels
Understeer control inhibited
Oversteer control inhibited
LF
RF
LR
RR
V_TRC_L
ON
OFF
ON
V_TRC_R
OFF
ON
OFF
V_STB_L
OFF
V_STB_R
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
1871-1U-06B(04-15).fm 6 ページ 2006年3月15日 水曜日 午前11時16分
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст