DSC HU/CM INSPECTION


BHE041543750W02

1. Disconnect the DSC HU/CM connector.

2. Connect the negative battery cable.

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)

Terminal

Signal name

Connected to

Measured item

Measured terminal (measured condition)

Standard

Inspection item(s)

A
Yaw rate (reference signal)
Combined sensor
Continuity
A-combined sensor connector terminal A
Continuity detected
• Wiring harness (A-combined sensor connector terminal A)
B
Brake fluid pressure (signal)
Brake fluid pressure sensor
Continuity
B-brake fluid pressure sensor connector terminal B
Continuity detected
• Wiring harness (B-brake fluid pressure sensor connector terminal B)
C
Power supply (brake fluid pressure sensor)
Brake fluid pressure sensor
Continuity
C-brake fluid pressure sensor connector terminal C
Continuity detected
• Wiring harness (C-brake fluid pressure sensor connector terminal C)
D
Yaw rate (test signal)
Combined sensor
Continuity
D-combined sensor connector terminal C
Continuity detected
• Wiring harness (D-combined sensor connector terminal C)
E
Ground
(brake fluid pressure sensor)
Brake fluid pressure sensor
Continuity
E-brake fluid pressure sensor connector terminal A
Continuity detected
• Wiring harness (E-brake fluid pressure sensor connector terminal A)
F
Yaw rate (signal)
Combined sensor
Continuity
F-combined sensor connector terminal B
Continuity detected
• Wiring harness (F-combined sensor connector terminal B)
G
Lateral-G (signal)
Combined sensor
Continuity
G-combined sensor connector terminal D
Continuity detected
• Wiring harness (G-combined sensor connector terminal D)
H
CAN_H
DLC-2 (CAN_H)
Continuity
H-DLC-2 terminal CAN_H
Continuity detected
• Wiring harness (H-DLC-2 terminal CAN_H)
I
CAN_L
DLC-2 (CAN_L)
Continuity
I-DLC-2 terminal CAN_L
Continuity detected
• Wiring harness (I-DLC-2 terminal CAN_L)
J
-
-
-
-
-
-
K
Power supply
(system)
Ignition switch
Voltage
Ignition switch at ON
B+
• Wiring harness (K-ignition switch)
Ignition switch is off.
1 V or less
-
L
Power supply (combined sensor)
Combined sensor
Continuity
L-combined sensor connector terminal E
Continuity detected
• Wiring harness (L-combined sensor connector terminal E)
M
-
-
-
-
-
-
N
-
-
-
-
-
-
O
Power supply
(solenoid operation)
Battery
Voltage
Under any condition
B+
• Wiring harness (O-battery)
P
Ground (combined sensor)
Combined sensor
Continuity
P-combined sensor connector terminal F
Continuity detected
• Wiring harness (P-combined sensor connector terminal F)
Q
-
-
-
-
-
-
R
-
-
-
-
-
-
S
-
-
-
-
-
-
T
Ground
(DSC system)
Ground point
Continuity
T-ground point
Continuity detected
• Wiring harness (T-ground point)
U
-
-
-
-
-
-
V
-
-
-
-
-
-
W
-
-
-
-
-
-
X
-
-
-
-
-
-
Y
-
-
-
-
-
-
Z
-
-
-
-
-
-
AA
Vehicle speed output
Audio unit
Continuity
AA-audio unit
Continuity detected
• Wiring harness (AA-audio unit)
Car-navigation unit
AA-car-navigation unit
• Wiring harness (AA-car-navigation unit)
Auto leveling control module
AA-auto leveling control module
• Wiring harness (AA-auto leveling control module)
AB
-
-
-
-
-
-
AC
RF wheel-speed sensor (signal)
RF ABS wheel-speed sensor
Continuity
AC-RF ABS wheel-speed sensor connector terminal A
Continuity detected
• Wiring harness (AC-RF ABS wheel-speed sensor connector terminal A)
AD
Brake switch
Brake switch
Voltage
AD-ground point
(Brake pedal depressed with ignition switch at ON)
B+
• Wiring harness (AD-brake switch)
• Brake switch
AD-ground point
(Brake pedal not depressed with ignition switch at ON)
1 V or less
-
AE
RF wheel-speed sensor (ground)
RF ABS wheel-speed sensor
Continuity
AE-RF ABS wheel-speed sensor connector terminal B
Continuity detected
• Wiring harness (AE-RF ABS wheel-speed sensor connector terminal B)
AF
RR wheel-speed (signal)
RR ABS wheel-speed sensor
Continuity
AF-RR ABS wheel-speed sensor connector terminal A
Continuity detected
• Wiring harness (AF-RR ABS wheel-speed sensor connector terminal A)
AG
Power supply
(ABS motor operation)
Battery
Voltage
Under any condition
B+
• Wiring harness (AG-battery)
AH
LR wheel-speed sensor (signal)
LR ABS wheel-speed sensor
Continuity
AH-LR ABS wheel-speed sensor connector terminal A
Continuity detected
• Wiring harness (AH-LR ABS wheel-speed sensor connector terminal A)
AI
RR wheel-speed sensor (ground)
RR ABS wheel-speed sensor
Continuity
AI-RR ABS wheel-speed sensor connector terminal B
Continuity detected
• Wiring harness (AI-RR ABS wheel-speed sensor connector terminal B)
AJ
LF wheel-speed sensor (ground)
LF ABS wheel-speed sensor
Continuity
AJ-LF ABS wheel-speed sensor connector terminal B
Continuity detected
• Wiring harness (AJ-LF ABS wheel-speed sensor connector terminal B)
AK
LR wheel-speed sensor (ground)
LR ABS wheel-speed sensor
Continuity
AK-LR ABS wheel-speed sensor connector terminal B
Continuity detected
• Wiring harness (AK-LR ABS wheel-speed sensor connector terminal B)
AL
LF wheel-speed sensor (single)
LF ABS wheel-speed sensor
Continuity
AL-LF ABS wheel-speed sensor connector terminal A
Continuity detected
• Wiring harness (AL-LF ABS wheel-speed sensor connector terminal A)
AM
-
-
-
-
-
-
AN
Ground
(ABS motor)
Ground point
Continuity
AN-ground point
Continuity detected
• Wiring harness (AN-ground point)
AO
KLN
DLC-2 (KLN)
Continuity
AO-DLC-2 terminal KLN
Continuity detected
• Wiring harness (AO-DLC-2 terminal KLN)
AP
DSC OFF switch
DSC OFF switch
Continuity
AP-DSC OFF switch connector terminal C
Continuity detected
• Wiring harness (AP-DSC OFF switch connector terminal C)