DSC HU/CM INSPECTION
DSC HU/CM INSPECTION
SM2335201
id041500801100
1.Disconnect the DSC HU/CM connector. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (US)].)
2.Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
3.Attach the tester lead to the DSC HU/CM wiring harness-side connector and inspect the voltage, continuity, or resistance according to the standard (reference) on the table.
Standard (Reference)
am3zzw00034532
|
—: Not applicable
|
Terminal |
Signal name |
Connected to |
Measured item |
Measured terminal (measurement condition) |
Standard |
Inspection item(s) |
|---|---|---|---|---|---|---|
|
A
|
Ground
|
Ground point
|
Continuity
|
A—Ground point
|
Continuity detected
|
• Wiring harness (A—Ground point)
|
|
B
|
—
|
—
|
—
|
—
|
—
|
—
|
|
C
|
Electric parking brake motor gear unit (LH)
|
Electric parking brake motor gear unit (LH)
|
Continuity
|
C—Electric parking brake motor gear unit (LH) terminal B
|
Continuity detected
|
• Wiring harness (C—Electric parking brake motor gear unit (LH) terminal B)
|
|
D
|
—
|
—
|
—
|
—
|
—
|
—
|
|
E
|
—
|
—
|
—
|
—
|
—
|
—
|
|
F
|
—
|
—
|
—
|
—
|
—
|
—
|
|
G
|
—
|
—
|
—
|
—
|
—
|
—
|
|
H
|
Electric parking brake motor gear unit (LH)
|
Electric parking brake motor gear unit (LH)
|
Continuity
|
H—Electric parking brake motor gear unit (LH) terminal A
|
Continuity detected
|
• Wiring harness (H—Electric parking brake motor gear unit (LH) terminal A)
|
|
I
|
Brake fluid level sensor
|
Brake fluid level sensor
|
Continuity
|
I—brake fluid level sensor terminal A
|
Continuity detected
|
• Wiring harness (I—brake fluid level sensor terminal A)
|
|
J
|
CAN1_L
|
CAN module
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|
|||
|
K
|
—
|
—
|
—
|
—
|
—
|
—
|
|
L
|
CAN1_H
|
CAN module
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|
|||
|
M
|
RR wheel-speed sensor (+)
|
ABS wheel-speed sensor (RR)
|
Continuity
|
M—ABS wheel-speed sensor (RR) terminal B
|
Continuity detected
|
• Wiring harness (M—ABS wheel-speed sensor (RR) terminal B)
|
|
N
|
—
|
—
|
—
|
—
|
—
|
—
|
|
O
|
—
|
—
|
—
|
—
|
—
|
—
|
|
P
|
RR wheel-speed sensor (-)
|
ABS wheel-speed sensor (RR)
|
Continuity
|
P—ABS wheel-speed sensor (RR) terminal D
|
Continuity detected
|
• Wiring harness (P—ABS wheel-speed sensor (RR) terminal D)
|
|
Q
|
—
|
—
|
—
|
—
|
—
|
—
|
|
R
|
Stop signal
|
Electrical supply unit
|
Continuity
|
R—Electrical supply unit terminal 3L
|
Continuity detected
|
• Wiring harness (R—Electrical supply unit terminal 3L)
|
|
S
|
LF wheel-speed sensor (+)
|
ABS wheel-speed sensor (LF)
|
Continuity
|
S—ABS wheel-speed sensor (LF) terminal B
|
Continuity detected
|
• Wiring harness (S—ABS wheel-speed sensor (LF) terminal B)
|
|
T
|
—
|
—
|
—
|
—
|
—
|
—
|
|
U
|
—
|
—
|
—
|
—
|
—
|
—
|
|
V
|
LF wheel-speed sensor (-)
|
ABS wheel-speed sensor (LF)
|
Continuity
|
V—ABS wheel-speed sensor (LF) terminal A
|
Continuity detected
|
• Wiring harness (V—ABS wheel-speed sensor (LF) terminal A)
|
|
W
|
Electric parking brake switch
|
Electric parking brake switch
|
Continuity
|
W—Electric parking brake switch terminal H
|
Continuity detected
|
• Wiring harness (W—Electric parking brake switch terminal H)
|
|
X
|
—
|
—
|
—
|
—
|
—
|
—
|
|
Y
|
LR wheel-speed sensor (+)
|
ABS wheel-speed sensor (LR)
|
Continuity
|
Y—ABS wheel-speed sensor (LR) terminal B
|
Continuity detected
|
• Wiring harness (Y—ABS wheel-speed sensor (LR) terminal B)
|
|
Z
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AA
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AB
|
LR wheel-speed sensor (-)
|
ABS wheel-speed sensor (LR)
|
Continuity
|
AB—ABS wheel-speed sensor (LR) terminal D
|
Continuity detected
|
• Wiring harness (AB—ABS wheel-speed sensor (LR) terminal D)
|
|
AC
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AD
|
Electric parking brake switch indicator light
|
Electric parking brake switch indicator light (built into electric parking brake switch)
|
Continuity
|
AD—Electric parking brake switch terminal F
|
Continuity detected
|
• Wiring harness (AD—Electric parking brake switch terminal F)
|
|
AE
|
RF wheel-speed sensor (+)
|
ABS wheel-speed sensor (RF)
|
Continuity
|
AE—ABS wheel-speed sensor (RF) terminal B
|
Continuity detected
|
• Wiring harness (AE—ABS wheel-speed sensor (RF) terminal B)
|
|
AF
|
Electric parking brake switch
|
Electric parking brake switch
|
Continuity
|
AF—Electric parking brake switch terminal E
|
Continuity detected
|
• Wiring harness (AF—Electric parking brake switch terminal E)
|
|
AG
|
Power supply (system)
|
IG1 relay No.2
|
Voltage
|
Ignition switched ON (engine off).
|
B+
|
• Wiring harness (AG—IG1 relay No.2 terminal C)
|
|
Switch the ignition off.
|
1 V or less
|
|||||
|
AH
|
RF wheel-speed sensor (-)
|
ABS wheel-speed sensor (RF)
|
Continuity
|
AH—ABS wheel-speed sensor (RF) terminal A
|
Continuity detected
|
• Wiring harness (AH—ABS wheel-speed sensor (RF) terminal A)
|
|
AI
|
Electric parking brake switch
|
Electric parking brake switch
|
Continuity
|
AI—Electric parking brake switch terminal I
|
Continuity detected
|
• Wiring harness (AI—Electric parking brake switch terminal I)
|
|
AJ
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AK
|
Electric parking brake motor gear unit (RH)
|
Electric parking brake motor gear unit (RH)
|
Continuity
|
AK—Electric parking brake motor gear unit (RH) terminal A
|
Continuity detected
|
• Wiring harness (AK—Electric parking brake motor gear unit (RH) terminal A)
|
|
AL
|
Electric parking brake switch
|
Electric parking brake switch
|
Continuity
|
AL—Electric parking brake switch terminal D
|
Continuity detected
|
• Wiring harness (AL—Electric parking brake switch terminal D)
|
|
AM
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AN
|
CAN2_L
|
CAN module
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|
|||
|
AO
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AP
|
Electric parking brake motor gear unit (RH)
|
Electric parking brake motor gear unit (RH)
|
Continuity
|
AP—Electric parking brake motor gear unit (RH) terminal B
|
Continuity detected
|
• Wiring harness (AP—Electric parking brake motor gear unit (RH) terminal B)
|
|
AQ
|
CAN2_H
|
CAN module
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|
|||
|
AR
|
—
|
—
|
—
|
—
|
—
|
—
|
|
AS
|
Power supply (pump moter operation)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (AS—Battery positive terminal)
|
|
AT
|
Power supply (solenoid operation)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (AT—Battery positive terminal)
|