DSC HU/CM INSPECTION

id041500801100

1. Disconnect the DSC HU/CM connector.

2. Connect the negative battery cable.

3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and inspect voltage, continuity, or resistance according to the standard (reference) on the table.

Standard (Reference)

am3zzw00002647

Terminal

Signal name

Connected to

Measured item

Measured terminal (measurement condition)

Standard

Inspection item(s)

A

Ground (system)

Ground point

Continuity

A—ground point

Continuity detected

•  Wiring harness
(A—ground point)

B

Ground

(ABS motor)

Ground point

Continuity

B—ground point

Continuity detected

•  Wiring harness
(B—ground point)

C

—

—

—

—

—

—

D

CAN_L

DLC-2

(CAN_L)

Continuity

D—DLC-2 terminal CAN_L

Continuity detected

•  D—DLC-2 terminal CAN_L

E

—

—

—

—

—

—

F

LF wheel-speed sensor (ground)

LF wheel-speed sensor

Continuity

F—LF ABS wheel-speed sensor terminal A

Continuity detected

•  Wiring harness (F—LF ABS wheel-speed sensor terminal A)

G

—

—

—

—

—

—

H

CAN2_H

Combined sensor

Continuity

H—combined sensor terminal B

Continuity detected

•  Wiring harness (H—combined sensor terminal B)

I

LF wheel-speed sensor (single)

LF ABS wheel-speed sensor

Continuity

I—LF ABS wheel-speed sensor terminal A

Continuity detected

•  Wiring harness (I—LF ABS wheel-speed sensor terminal A)

J

—

—

—

—

—

—

K

—

—

—

—

—

—

L

—

—

—

—

—

—

M

—

—

—

—

—

—

N

—

—

—

—

—

—

O

RR wheel-speed (signal)

RR ABS wheel-speed sensor

Continuity

O—RR ABS wheel-speed sensor terminal A

Continuity detected

•  Wiring harness (O—RR ABS wheel-speed sensor terminal A)

P

CAN_H

DLC-2

(CAN_H)

Continuity

P—DLC-2 terminal CAN_H

Continuity detected

•  Wiring harness (P—DLC-2 terminal CAN_H)

Q

—

—

—

—

—

—

R

RR wheel-speed (ground)

RR ABS wheel-speed sensor

Continuity

R—RR ABS wheel-speed sensor terminal B

Continuity detected

•  Wiring harness (R—RR ABS wheel-speed sensor terminal B)

S

—

—

—

—

—

—

T

CAN2_L

Combined sensor

Continuity

T—combined sensor terminal A

Continuity detected

•  Wiring harness (T—combined sensor terminal A)

U

—

—

—

—

—

—

V

—

—

—

—

—

—

W

—

—

—

—

—

—

X

—

—

—

—

—

—

Y

—

—

—

—

—

—

Z

—

—

—

—

—

—

AA

—

—

—

—

—

—

AB

Sensor power supply

Combined sensor, steering angle sensor

Continuity

AB—combined sensor terminal D

AB—steering angle sensor terminal A

Continuity detected

•  Wiring harness (AB—combined sensor terminal D)

•  Wiring harness (AB—steering angle sensor terminal A)

AC

—

—

—

—

—

—

AD

DSC OFF switch

DSC OFF switch

Continuity

AD—DSC OFF switch

Continuity detected

•  Wiring harness (AD—DSC OFF switch)

AE

Steering angle sensor (signal B)

Steering angle sensor

Continuity

AE—steering angle sensor terminal C

Continuity detected

•  Wiring harness (AE—steering angle sensor terminal C)

AF

—

—

—

—

—

—

AG

LR wheel-speed (ground)

LR wheel-speed sensor

Continuity

AG—LR ABS wheel-speed sensor terminal B

Continuity detected

•  Wiring harness (AG—LR ABS wheel-speed sensor terminal B)

AH

Sensor ground

Combined sensor, steering angle sensor

Continuity

AH—combined sensor terminal E

AH—steering angle sensor terminal D

Continuity detected

•  Wiring harness (AH—combined sensor terminal E)

•  Wiring harness (AH—steering angle sensor terminal D)

AI

—

—

—

—

—

—

AJ

LR wheel-speed (signal)

LR ABS wheel-speed sensor

Continuity

AJ—LR ABS wheel-speed sensor terminal A

Continuity detected

•  Wiring harness (AJ—LR ABS wheel-speed sensor terminal A)

AK

Power supply (system)

Ignition switch

Voltage

The ignition switch is at the ON position.

B+

•  Wiring harness (AK—ignition switch)

The ignition switch is off.

1 V or less

—

AL

—

—

—

—

—

—

AM

—

—

—

—

—

—

AN

Steering angle sensor (signal A)

Steering angle sensor

Continuity

AN—steering angle sensor terminal B

Continuity detected

•  Wiring harness (AN—steering angle sensor terminal B)

AO

—

—

—

—

—

—

AP

RF wheel-speed (signal)

RF ABS wheel-speed sensor

Continuity

AP—RF ABS wheel-speed sensor terminal A

Continuity detected

•  Wiring harness (AP—RF ABS wheel-speed sensor terminal A)

AQ

—

—

—

—

—

—

AR

—

—

—

—

—

—

AS

RF wheel-speed (ground)

RF ABS wheel-speed sensor

Continuity

AS—RF ABS wheel-speed sensor terminal B

Continuity detected

•  Wiring harness (AS—RF ABS wheel-speed sensor terminal B)

AT

Power supply

(ABS motor operation)

Battery

Voltage

Under any condition

B+

•  Wiring harness
(AT—battery)

AU

Power supply

(solenoid operation)

Battery

Voltage

Under any condition

B+

•  Wiring harness
(AU—battery)

Terminal	Signal name	Connected to	Measured item	Measured terminal (measurement condition)	Standard	Inspection item(s)
A	Ground (system)	Ground point	Continuity	A—ground point	Continuity detected	• Wiring harness (A—ground point)
B	Ground (ABS motor)	Ground point	Continuity	B—ground point	Continuity detected	• Wiring harness (B—ground point)
C	—	—	—	—	—	—
D	CAN_L	DLC-2 (CAN_L)	Continuity	D—DLC-2 terminal CAN_L	Continuity detected	• D—DLC-2 terminal CAN_L
E	—	—	—	—	—	—
F	LF wheel-speed sensor (ground)	LF wheel-speed sensor	Continuity	F—LF ABS wheel-speed sensor terminal A	Continuity detected	• Wiring harness (F—LF ABS wheel-speed sensor terminal A)
G	—	—	—	—	—	—
H	CAN2_H	Combined sensor	Continuity	H—combined sensor terminal B	Continuity detected	• Wiring harness (H—combined sensor terminal B)
I	LF wheel-speed sensor (single)	LF ABS wheel-speed sensor	Continuity	I—LF ABS wheel-speed sensor terminal A	Continuity detected	• Wiring harness (I—LF ABS wheel-speed sensor terminal A)
J	—	—	—	—	—	—
K	—	—	—	—	—	—
L	—	—	—	—	—	—
M	—	—	—	—	—	—
N	—	—	—	—	—	—
O	RR wheel-speed (signal)	RR ABS wheel-speed sensor	Continuity	O—RR ABS wheel-speed sensor terminal A	Continuity detected	• Wiring harness (O—RR ABS wheel-speed sensor terminal A)
P	CAN_H	DLC-2 (CAN_H)	Continuity	P—DLC-2 terminal CAN_H	Continuity detected	• Wiring harness (P—DLC-2 terminal CAN_H)
Q	—	—	—	—	—	—
R	RR wheel-speed (ground)	RR ABS wheel-speed sensor	Continuity	R—RR ABS wheel-speed sensor terminal B	Continuity detected	• Wiring harness (R—RR ABS wheel-speed sensor terminal B)
S	—	—	—	—	—	—
T	CAN2_L	Combined sensor	Continuity	T—combined sensor terminal A	Continuity detected	• Wiring harness (T—combined sensor terminal A)
U	—	—	—	—	—	—
V	—	—	—	—	—	—
W	—	—	—	—	—	—
X	—	—	—	—	—	—
Y	—	—	—	—	—	—
Z	—	—	—	—	—	—
AA	—	—	—	—	—	—
AB	Sensor power supply	Combined sensor, steering angle sensor	Continuity	AB—combined sensor terminal D AB—steering angle sensor terminal A	Continuity detected	• Wiring harness (AB—combined sensor terminal D) • Wiring harness (AB—steering angle sensor terminal A)
AC	—	—	—	—	—	—
AD	DSC OFF switch	DSC OFF switch	Continuity	AD—DSC OFF switch	Continuity detected	• Wiring harness (AD—DSC OFF switch)
AE	Steering angle sensor (signal B)	Steering angle sensor	Continuity	AE—steering angle sensor terminal C	Continuity detected	• Wiring harness (AE—steering angle sensor terminal C)
AF	—	—	—	—	—	—
AG	LR wheel-speed (ground)	LR wheel-speed sensor	Continuity	AG—LR ABS wheel-speed sensor terminal B	Continuity detected	• Wiring harness (AG—LR ABS wheel-speed sensor terminal B)
AH	Sensor ground	Combined sensor, steering angle sensor	Continuity	AH—combined sensor terminal E AH—steering angle sensor terminal D	Continuity detected	• Wiring harness (AH—combined sensor terminal E) • Wiring harness (AH—steering angle sensor terminal D)
AI	—	—	—	—	—	—
AJ	LR wheel-speed (signal)	LR ABS wheel-speed sensor	Continuity	AJ—LR ABS wheel-speed sensor terminal A	Continuity detected	• Wiring harness (AJ—LR ABS wheel-speed sensor terminal A)
AK	Power supply (system)	Ignition switch	Voltage	The ignition switch is at the ON position.	B+	• Wiring harness (AK—ignition switch)
AK	Power supply (system)	Ignition switch	Voltage	The ignition switch is off.	1 V or less	—
AL	—	—	—	—	—	—
AM	—	—	—	—	—	—
AN	Steering angle sensor (signal A)	Steering angle sensor	Continuity	AN—steering angle sensor terminal B	Continuity detected	• Wiring harness (AN—steering angle sensor terminal B)
AO	—	—	—	—	—	—
AP	RF wheel-speed (signal)	RF ABS wheel-speed sensor	Continuity	AP—RF ABS wheel-speed sensor terminal A	Continuity detected	• Wiring harness (AP—RF ABS wheel-speed sensor terminal A)
AQ	—	—	—	—	—	—
AR	—	—	—	—	—	—
AS	RF wheel-speed (ground)	RF ABS wheel-speed sensor	Continuity	AS—RF ABS wheel-speed sensor terminal B	Continuity detected	• Wiring harness (AS—RF ABS wheel-speed sensor terminal B)
AT	Power supply (ABS motor operation)	Battery	Voltage	Under any condition	B+	• Wiring harness (AT—battery)
AU	Power supply (solenoid operation)	Battery	Voltage	Under any condition	B+	• Wiring harness (AU—battery)