Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: DSC HU/CM Inspection

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)



Terminal

Signal name

Connected to

Measured item

Measured terminal (measurement condition)

Standard

Inspection item(s)

A

Power supply

(solenoid operation)

Battery

Voltage

Under any condition

B+

  • Wiring harness (A—battery)

B

Power supply

(motor operation)

Battery

Voltage

Under any condition

B+

  • Wiring harness (B—battery)

C

RF wheel-speed (-)

RF ABS wheel-speed sensor

Continuity

C—RF ABS wheel-speed sensor terminal B

Continuity detected

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

D

E

F

RF wheel-speed (+)

RF ABS wheel-speed sensor

Continuity

F—RF ABS wheel-speed sensor terminal A

Continuity detected

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

G

H

I

J

K

L

LR wheel-speed (+)

LR ABS wheel-speed sensor

Continuity

L—LR ABS wheel-speed sensor terminal A

Continuity detected

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

M

N

O

LR wheel-speed (-)

LR wheel-speed sensor

Continuity

O—LR ABS wheel-speed sensor terminal B

Continuity detected

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

P

CAN2_L

SAS control module

This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.

Q

Power supply (system)

Ignition switch

Voltage

Ignition switched ON (engine off).

B+

  • Wiring harness (Q—ignition switch)

Switch the ignition to off.

1 V or less

R

S

CAN2_H

SAS control module

This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.

T

U

V

W

X

RR wheel-speed (-)

RR ABS wheel-speed sensor

Continuity

X—RR ABS wheel-speed sensor terminal B

Continuity detected

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

Y

Z

AA

RR wheel-speed (+)

RR ABS wheel-speed sensor

Continuity

AA—RR ABS wheel-speed sensor terminal A

Continuity detected

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

AB

AC

CAN_L

CAN module

This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.

AD

AE

AF

CAN_H

CAN module

This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.

AG

LF wheel-speed sensor (+)

LF ABS wheel-speed sensor

Continuity

AG—LF ABS wheel-speed sensor terminal A

Continuity detected

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

AH

AI

AJ

LF wheel-speed sensor (-)

LF wheel-speed sensor

Continuity

AJ—LF ABS wheel-speed sensor terminal B

Continuity detected

  • Wiring harness (AJ—LF ABS wheel-speed sensor terminal B)

AK

AL

Ground

Ground point

Continuity

AL—ground point

Continuity detected

  • Wiring harness (AL—ground point)


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