DSC HU/CM INSPECTION
id041500801100
1. Disconnect the DSC HU/CM connector. (See DSC HU/CM REMOVAL/INSTALLATION.)
2. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [13B-MSP].)
3. Attach the tester lead to the DSC HU/CM harness side connector, then inspect voltage, continuity or resistance according to the standard (reference value) on the table.
Standard (Reference Value)
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|
Terminal |
Signal name |
Connected to |
Measured item |
Measured terminal (measured condition) |
Standard |
Inspection item(s) |
---|---|---|---|---|---|---|
A
|
Ground
(ABS motor)
|
Ground point
|
Continuity
|
A—ground point
|
Continuity detected
|
• Wiring harness (A—ground point)
|
B
|
Power supply
(ABS motor operation)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (B—battery)
|
C
|
Power supply
(solenoid operation)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (C—battery)
|
D
|
Ground
(DSC system)
|
Ground point
|
Continuity
|
D—ground point
|
Continuity detected
|
• Wiring harness (D—ground point)
|
E
|
LF wheel-speed sensor (ground)
|
LF ABS wheel-speed sensor
|
Continuity
|
E—LF ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (E—LF ABS wheel-speed sensor connector terminal B)
|
F
|
LF wheel-speed sensor (single)
|
LF ABS wheel-speed sensor
|
Continuity
|
F—LF ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (F—LF ABS wheel-speed sensor connector terminal A)
|
G
|
LR wheel-speed sensor (signal)
|
LR ABS wheel-speed sensor
|
Continuity
|
G—LR ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (G—LR ABS wheel-speed sensor connector terminal B)
|
H
|
LR wheel-speed sensor (ground)
|
LR ABS wheel-speed sensor
|
Continuity
|
H—LR ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (H—LR ABS wheel-speed sensor connector terminal A)
|
I
|
RR wheel-speed (signal)
|
RR ABS wheel-speed sensor
|
Continuity
|
I—RR ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (I—RR ABS wheel-speed sensor connector terminal B)
|
J
|
Power supply
(system)
|
Ignition switch
|
Voltage
|
Ignition switch at ON
|
B+
|
• Wiring harness (J—ignition switch)
|
Ignition switch is off.
|
1 V or less
|
—
|
||||
K
|
—
|
—
|
—
|
—
|
—
|
—
|
L
|
RR wheel-speed sensor (ground)
|
RR ABS wheel-speed sensor
|
Continuity
|
L—RR ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (L—RR ABS wheel-speed sensor connector terminal A)
|
M
|
RF wheel-speed sensor (signal)
|
RF ABS wheel-speed sensor
|
Continuity
|
M—RF ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (M—RF ABS wheel-speed sensor connector terminal A)
|
N
|
Brake switch
|
Brake switch
|
Voltage
|
N—ground point
(Brake pedal
depressed)
|
B+
|
• Wiring harness (N—brake switch)
• Brake switch
|
N—ground point
(Brake pedal not depressed)
|
1 V or less
|
—
|
||||
O
|
RF wheel-speed sensor (ground)
|
RF ABS wheel-speed sensor
|
Continuity
|
O—RF ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (O—RF ABS wheel-speed sensor connector terminal B)
|
P
|
DSC OFF switch
|
DSC OFF switch
|
Continuity
|
P—DSC OFF switch connector terminal C
|
Continuity detected
|
• Wiring harness (P—DSC OFF switch connector terminal C)
|
Q
|
—
|
—
|
—
|
—
|
—
|
—
|
R
|
—
|
—
|
—
|
—
|
—
|
—
|
S
|
—
|
—
|
—
|
—
|
—
|
—
|
T
|
Vehicle speed output
|
Audio unit
|
Continuity
|
T—audio unit
|
Continuity detected
|
• Wiring harness (T—audio unit)
|
Car-navigation unit
|
T—car-navigation unit
|
• Wiring harness (T—car-navigation unit)
|
||||
Position memory control module
|
T—position memory control module
|
• Wiring harness (T—position memory control module)
|
||||
Auto light/wiper control module
|
T—auto light/wiper control module
|
• Wiring harness (T—auto light/wiper control module)
|
||||
Climate control unit
|
T—climate control unit
|
• Wiring harness (T—climate control unit)
|
||||
Auto leveling control module
|
T—auto leveling control module
|
• Wiring harness (T—auto leveling control module)
|
||||
U
|
—
|
—
|
—
|
—
|
—
|
—
|
V
|
—
|
—
|
—
|
—
|
—
|
—
|
W
|
CAN_L
|
DLC-2 (CAN_L)
|
Continuity
|
W—DLC-2 terminal CAN_L
|
Continuity detected
|
• Wiring harness (W—DLC-2 terminal CAN_L)
|
X
|
CAN_H
|
DLC-2 (CAN_H)
|
Continuity
|
X—DLC-2 terminal CAN_H
|
Continuity detected
|
• Wiring harness (X—DLC-2 terminal CAN_H)
|
Y
|
—
|
—
|
—
|
—
|
—
|
—
|
Z
|
—
|
—
|
—
|
—
|
—
|
—
|
AA
|
—
|
—
|
—
|
—
|
—
|
—
|
AB
|
—
|
—
|
—
|
—
|
—
|
—
|
AC
|
—
|
—
|
—
|
—
|
—
|
—
|
AD
|
—
|
—
|
—
|
—
|
—
|
—
|
AE
|
—
|
—
|
—
|
—
|
—
|
—
|
AF
|
—
|
—
|
—
|
—
|
—
|
—
|
AG
|
—
|
—
|
—
|
—
|
—
|
—
|
AH
|
—
|
—
|
—
|
—
|
—
|
—
|
AI
|
—
|
—
|
—
|
—
|
—
|
—
|
AJ
|
—
|
—
|
—
|
—
|
—
|
—
|
AK
|
—
|
—
|
—
|
—
|
—
|
—
|
AL
|
—
|
—
|
—
|
—
|
—
|
—
|
AM
|
—
|
—
|
—
|
—
|
—
|
—
|
AN
|
—
|
—
|
—
|
—
|
—
|
—
|
AO
|
—
|
—
|
—
|
—
|
—
|
—
|
AP
|
—
|
—
|
—
|
—
|
—
|
—
|
AQ
|
—
|
—
|
—
|
—
|
—
|
—
|
AR
|
CAN2_H
|
Combined sensor
|
Continuity
|
AR—combined sensor connector terminal C
|
Continuity detected
|
• Wiring harness (AR—combined sensor connector terminal C)
|
AS
|
CAN2_L
|
Combined sensor
|
Continuity
|
AS—combined sensor connector terminal B
|
Continuity detected
|
• Wiring harness (AS—combined sensor connector terminal B)
|
AT
|
—
|
—
|
—
|
—
|
—
|
—
|