Mazda CX-5 Service & Repair Manual: 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).
-
If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s).
-
If the system does not operate normally even though the inspection items are normal, replace the BSM control module (RH) or BSM control module (LH).
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 |
|
|
|
B |
Power position (IG1) |
IG relay |
Ignition switched ON (Engine off or on) |
B+ |
|
|
|
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 |
|
|
|
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 |
|
|
|
B |
Power position (1G1) |
IG relay |
Ignition switched ON (engine off or on) |
B+ |
|
|
|
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 |
|
|
|
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 |
|
|
|
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:
Airflow Mode Actuator [Full Auto Air Conditioner]
Purpose
The airflow mode actuator moves the mode door in the A/C unit to switch the
air vent.
Function
Door open/close function
The airflow mode actuator drives the motor based on the signal from the climate
control unit and moves the mode door to the VENT, BI-LEVEL, HEAT, ...
C Pillar Trim Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Trunk board.
b. Trunk end trim.
c. Rear scuff plate.
d. Trunk side trim.
e. D-pillar trim.
3. Partially peel back the seaming welt.
4. Remove the fastener A.
5. Take the shaded area shown in the figure ...
Instrument Cluster Disassembly/Assembly
CAUTION:
If the instrument cluster is hit forcefully during disassembly such as by
being dropped, it could get damaged and the system may not operate normally.
When disassembling the instrument cluster, perform the procedure on a workbench
on clean clothes being careful not to drop ...
