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Mazda CX-5 Service & Repair Manual: Blind Spot Monitoring (Bsm) Control Module Inspection

Mazda CX-5 Service & Repair 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. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

Terminal Voltage Table (Reference)

BSM control module (RH)



Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

A

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

B

Power position (IG1)

IG relay

Ignition switched ON (Engine off or on)

B+

  • C/U IG1 fuse

  • IG relay

  • Related wiring harness

Ignition switched off (LOCK) or ACC

1.0 or less

C

D

BSM indicator light (RH) signal

BSM indicator light (RH)

Turn off BSM indicator light using BSM system simulation WRN_IND_R

1.0 or less

  • BSM indicator light (RH)

  • Related wiring harness

Turn on BSM indicator light using rear vehicle monitoring system simulation WRN_IND_R

B+

E

F

G

MS-CAN_L

Related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

H

MS-CAN_H

Related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.


BSM control module (LH)



Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

A

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

B

Power position (1G1)

IG relay

Ignition switched ON (engine off or on)

B+

  • C/U IG1 fuse

  • IG relay

  • Related wiring harness

Ignition switched off (LOCK) or ACC

1.0 or less

C

D

BSM indicator light (LH) signal

BSM indicator light (LH)

Turn off BSM indicator light using BSM system simulation WRN_IND_L

1.0 or less

  • BSM indicator light (LH)

  • Related wiring harness

Turn on BSM indicator light using rear vehicle monitoring system simulation WRN_IND_L

B+

E

Ground

Body ground

Under any condition

1.0 or less

  • Related wiring harness

F

G

MS-CAN_L

Related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

H

MS-CAN_H

Related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.


Blind Spot Monitoring (Bsm) Control Module
Purpose Controls the blind spot monitoring (BSM) system. Function The BSM control module emits microwaves to detect an oncoming vehicle's position and speed information via ...

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

Other materials:

Bumper Bracket Installation [Panel Replacement]
Symbol Mark Installation Procedure 1. When installing new parts, measure and adjust the body as necessary to conform with standard dimensions. 2. Drill holes for the plug welding 6 locations indicated by (A) and 3 locations indicated by (C) shown in the figure, before installing the new ...

Oil Filter Replacement
WARNING: Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled. A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work ...

Headlight Leveling Actuator
Purpose, Function The headlight leveling actuator drives the motor based on the target optical axis voltage, which is input from the AFS control module, to change the optical axis of the headlights. Construction Built into the front combination lights. Consists of ...

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