Mazda 3 Service 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. Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.
-
If the voltage or continuity is not as specified in the Terminal Voltage Table, inspect the parts under “Inspection item (s)”.
-
If the system does not operate normally even though the related wiring harness and short cord are normal, replace the BSM control module.
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 |
|
|
|
B |
Power supply |
METER 15 A fuse |
Switch the ignition ON |
B+ |
|
|
|
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 |
|
|
LED on |
B+ |
|||||
|
E |
Ground |
Body ground |
Under any condition |
1.0 or less |
|
|
|
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 |
|
|
|
B |
Power supply |
METER 15 A fuse |
Switch the ignition ON |
B+ |
|
|
|
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 |
|
|
LED on |
B+ |
|||||
|
E |
BSM OFF switch signal |
BSM OFF switch |
Switch the ignition to ON |
BSM switch pressed |
1.0 or less |
|
|
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:
Information on Temporary Tires
Please refer to the sample below
Temporary tires
Nominal width of tire in millimeters
Ratio of height to width (aspect ratio)
Diagonal
Rim diameter code
Load index & speed symbol
T115/70D16 90M is an example of a tire size and load index rating. Here is an
explanation
of ...
Disc Pad (Front) Replacement [Mzr 2.3 Disi Turbo]
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
3. After installation, pump the brake pedal a few times and verify that the brakes
do not drag.
1
Clip
2
Retaining clip
(See FRONT BRAKE (DISC ...
Outer Mirror Glass Installation
1. Connect the mirror heater connectors. (Vehicles with heated outer mirrors)
2. Connect the BSM indicator light connector. (Vehicles with BSM system)
3. Press part C on the outer mirror glass and install pin C.
4. Press part A on the outer mirror glass and install pins A.
5. Press part ...
