Mazda 3 manuals

Mazda 3 Service Manual: Blind Spot Monitoring (Bsm) Control Module Inspection

Mazda 3 Service Manual / Accessories / Safety Systems / Blind Spot Monitoring (Bsm) Control Module Inspection

1. Disconnect the negative battery cable.

2. Remove the rear combination light..

3. Remove the rear bumper..

4. Connect the negative battery cable..

5. Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.

Terminal Voltage Table (Reference)


BSM control module (LH)

Terminal

Signal

Connected to

Measurement condition

Voltage (V)

Inspection item (s)

A

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

B

Power supply

METER 15 A fuse

Switch the ignition ON

B+

  • METER 15 A fuse

  • Related wiring harness

Switch the ignition OFF (LOCK)

1.0 or less

D

BSM indicator light (LH) signal

BSM indicator light (LH)

Switch the ignition to ON

LED off

1.0 or less

  • Related wiring harness

  • BSM indicator light

LED on

B+

E

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

G

CAN_L

CAN system related module

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.

H

CAN_H

CAN system related module

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.


BSM control module (RH)

Terminal

Signal

Connected to

Measurement condition

Voltage (V)

Inspection item (s)

A

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

B

Power supply

METER 15 A fuse

Switch the ignition ON

B+

  • METER 15 A fuse

  • Related wiring harness

Switch the ignition OFF (LOCK)

1.0 or less

D

BSM indicator light (RH) signal

BSM indicator light (RH)

Switch the ignition to ON

LED off

1.0 or less

  • Related wiring harness

  • BSM indicator light

LED on

B+

E

BSM OFF switch signal

BSM OFF switch

Switch the ignition to ON

BSM switch pressed

1.0 or less

  • Related wiring harness

  • BSM OFF switch

BSM switch not pressed

B+

G

CAN_L

CAN system related module

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.

H

CAN_H

CAN system related module

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.


Blind Spot Monitoring (Bsm) Bracket Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the rear combination light.. 3. Remove the rear bumper.. 4. Remove the BSM control module.. 5. Remove the nuts. 6. Remove the clip. ...

Blind Spot Monitoring (Bsm) Control Module Removal/Installation
CAUTION: If the BSM control modules are installed with the left and right modules reversed, a DTC will be displayed and system will enter the fail-safe function. Therefore, confirm that ...

Other materials:

Shift Lock System Inspection
Shift-Lock System Inspection 1. Switch the ignition to ON. 2. Shift the selector lever to the P position. 3. Perform the following procedures to inspect the shift-lock system. If there is any malfunction, inspect the shift-lock solenoid and P position switch.. a. Verify that th ...

Jack
To remove the jack (4–Door) Push the tabs and remove the cover. (5–Door) Turn the knob and remove the cover. Turn the wing bolt and jack screw counterclockwise. To secure the jack Insert the wing bolt into the jack with the jack screw pointing to the down and t ...

Windshield Wiper Arm And Blade Removal/Installation
1. Remove in the order indicated in the table. 1 Cap 2 Nut 3 Windshield wiper arm (See Windshield Wiper Arm Installation Note.) 4 Windshield wiper blade 5 ...

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