ON-BOARD DIAGNOSTIC [BLIND SPOT MONITORING (BSM) CONTROL MODULE (Except Australian specs.)]

id1502006955b8


Outline

•  The on-board diagnostic function consists of the following functions:
―  A malfunction detection function, which detects overall malfunctions in the blind spot monitoring (BSM) system-related parts.
―  A memory function, which stores detected DTCs.
―  A display function, which indicates malfunction locations and status via DTC output.
―  A PID/data monitoring function, which reads out specific input/output signals and verifies the input/output condition.
•  Using the Mazda Modular Diagnostic System (M-MDS), DTCs can be read out and deleted, and the PID/data monitoring function can be activated.

Malfunction detection function

•  Detects malfunctions in input/output signals.
•  If a malfunction occurs, the blind spot monitoring (BSM) control module (LH) records the malfunction as a DTC. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

DTC table

×: Applicable
—: Not applicable

DTC No.

Blind spot monitoring (BSM) OFF indicator light

Description

Fail-safe

Drive cycle

Self test type*1

Memory function
B11CB:11
On
Blind spot monitoring (BSM) warning light (RH) circuit malfunction
×
—
C, D
×
B11CB:15
On
Blind spot monitoring (BSM) warning light (RH) circuit malfunction
×
—
C, D
×
B11D3:11
On
Blind spot monitoring (BSM) warning light (LH) circuit malfunction
×
—
C, D
×
B11D3:15
On
Blind spot monitoring (BSM) warning light (LH) circuit malfunction
×
—
C, D
×
B11F2:23
On
Blind spot monitoring (BSM) system operation/non-operation signal stuck
×
—
C, D
×
U0001:88
On
Unit communication error (MS-CAN)
×
—
C, D
×
U0028:87
On
Blind spot monitoring (BSM) control module (LH) and (RH) communication error
×
—
C, D
×
U0100:00
On
Communication error with PCM
×
—
C, D
×
U0121:00
On
Communication error with DSC HU/CM
×
—
C, D
×
U0155:00
On
Communication error with instrument cluster
×
—
C, D
×
U0214:00
On
Communication error with start stop unit
×
—
C, D
×
U0401:68
On
Error signal received from PCM
×
—
C, D
×
U0415:68
On
Error signal received from DSC HU/CM
×
—
C, D
×
U0423:68
On
Error signal received from instrument cluster
×
—
C, D
×
U0515:68
On
Error signal received from start stop unit
×
—
C, D
×
U1A4B:16
On
Blind spot monitoring (BSM) control module (RH) low power supply voltage input
×
—
C, D
×
U1A4B:17
On
Blind spot monitoring (BSM) control module (RH) high power supply voltage input
×
—
C, D
×
U1A4B:43
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:44
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:45
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:46
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:47
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:48
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:49
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:54
On
Radar aiming is not performed or radar sensor axis is deviated (Blind spot monitoring (BSM) control module (RH))
×
—
C, D
×
U1A4B:96
On
Blind spot monitoring (BSM) control module (RH) malfunction
×
—
C, D
×
U1A4B:97
On
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (RH))
×
—
C, D
×
U2300:54
On
Configuration data not received from instrument cluster
×
—
C, D
×
U2300:55
On
Instrument cluster configuration not implemented
×
—
C, D
×
U2300:56
On
Configuration data unmatched with instrument cluster
×
—
C, D
×
U2300:64
On
Instrument cluster configuration error
×
—
C, D
×
U3000:42
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:43
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:44
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:45
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:46
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:47
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:48
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:49
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:4B
On
Temperature temporarily increases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (LH) or (RH))
×
—
C, D
×
U3000:54
On
Radar aiming is not performed or radar sensor axis is deviated (Blind spot monitoring (BSM) control module (LH))
×
—
C, D
×
U3000:96
On
Blind spot monitoring (BSM) control module (LH) malfunction
×
—
C, D
×
U3000:97
On
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (LH))
×
—
C, D
×
U3003:16
On
Blind spot monitoring (BSM) control module (LH) low power supply voltage input
×
—
C, D
×
U3003:17
On
Blind spot monitoring (BSM) control module (LH) high power supply voltage input
×
—
C, D
×

*1  :C: CMDTC self test, D: ODDTC self test

DTC 7-digit code definition

•  When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.
am6xun00000789


Status byte for DTC

•  The two digits (two digits after hyphen (-)) after the 7-digit DTC.
ac5wzn00002008
•  A code which indicates the pending code, current/past malfunction status, or warning illumination status.
•  Can be read by performing a CMDTC self-test using the Mazda Modular Diagnostic System (M-MDS).
•  For details on the status byte, refer to the explanation on the Mazda Modular Diagnostic System (M-MDS) when reading the DTC.


Detection condition for the applicable DTC

DTC No.

Description

Detection condition
B11CB:11
Blind spot monitoring (BSM) warning light (RH) circuit malfunction
•  Blind spot monitoring (BSM) control module (RH) detects a short to ground in the blind spot monitoring (BSM) warning light (RH) circuit with the ignition switched ON (engine off or on).
B11CB:15
Blind spot monitoring (BSM) warning light (RH) circuit malfunction
•  Blind spot monitoring (BSM) control module (RH) detects an open circuit or short to power supply in the blind spot monitoring (BSM) warning light (RH) circuit with the ignition switched ON (engine off or on).
B11D3:11
Blind spot monitoring (BSM) warning light (LH) circuit malfunction
•  Blind spot monitoring (BSM) control module (RH) detects a short to ground in the blind spot monitoring (BSM) warning light (LH) circuit with the ignition switched ON (engine off or on).
B11D3:15
Blind spot monitoring (BSM) warning light (LH) circuit malfunction
•  Blind spot monitoring (BSM) control module (RH) detects an open circuit or short to power supply in the blind spot monitoring (BSM) warning light (LH) circuit with the ignition switched ON (engine off or on).
B11F2:23
Blind spot monitoring (BSM) system operation/non-operation signal stuck
•  The blind spot monitoring (BSM) control module (LH) receives a blind spot monitoring (BSM) system operation/non-operation signal for 2 min or more from the connectivity master unit (CMU) with the ignition switched ON (engine off or on).
U0001:88
Unit communication error (MS-CAN)
•  Blind spot monitoring (BSM) control module (LH) detects a CAN bus communication line (MS-CAN) malfunction with the ignition switched ON (engine off or on).
U0028:87
Blind spot monitoring (BSM) control module (LH) and (RH) communication error
•  No communication between blind spot monitoring (BSM) control modules (LH) and (RH) for 1 s or more with the ignition switched ON (engine off or on).
U0100:00
Communication error with PCM
•  Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the PCM for 2 s or more with the ignition switched ON (engine off or on).
U0121:00
Communication error with DSC HU/CM
•  Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the DSC HU/CM for 2 s or more with the ignition switched ON (engine off or on).
U0155:00
Communication error with instrument cluster
•  Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the instrument cluster for 2 s or more with the ignition switched ON (engine off or on).
U0214:00
Communication error with start stop unit
•  Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the start stop unit for 2 s or more with the ignition switched ON (engine off or on).
U0401:68
Error signal received from PCM
•  Blind spot monitoring (BSM) control module (LH) receives the error signal from the PCM for 2 s or more with the ignition switched ON (engine off or on).
U0415:68
Error signal received from DSC HU/CM
•  Blind spot monitoring (BSM) control module (LH) receives the error signal from the DSC HU/CM for 2 s or more with the ignition switched ON (engine off or on).
U0423:68
Error signal received from instrument cluster
•  Blind spot monitoring (BSM) control module (LH) receives the error signal from the instrument cluster for 2 s or more with the ignition switched ON (engine off or on).
U0515:68
Error signal received from start stop unit
•  Blind spot monitoring (BSM) control module (LH) receives the error signal from the start stop unit for 2 s or more with the ignition switched ON (engine off or on).
U1A4B:16
Blind spot monitoring (BSM) control module (RH) low power supply voltage input
•  Blind spot monitoring (BSM) control module (RH) power supply circuit voltage of 9 V or less is detected for 1 s or more with the ignition switched ON (engine off or on).
U1A4B:17
Blind spot monitoring (BSM) control module (RH) high power supply voltage input
•  Blind spot monitoring (BSM) control module (RH) power supply circuit voltage of 16 V or more is detected for 1 s or more with the ignition switched ON (engine off or on).
U1A4B:43
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) external RAM malfunction detected with the ignition switched ON (engine off or on).
U1A4B:44
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) internal RAM malfunction detected with the ignition switched ON (engine off or on).
U1A4B:45
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) ROM malfunction detected with the ignition switched ON (engine off or on).
U1A4B:46
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) EEPROM malfunction detected with the ignition switched ON (engine off or on).
U1A4B:47
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) monitoring system malfunction detected with the ignition switched ON (engine off or on).
U1A4B:48
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) communication circuit malfunction detected with the ignition switched ON (engine off or on).
U1A4B:49
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) voltage control circuit malfunction detected for 1 s or more with the ignition switched ON (engine off or on).
U1A4B:54
Radar aiming is not performed or radar sensor axis is deviated (Blind spot monitoring (BSM) control module (RH))
•  Malfunction in radar aiming of the blind spot monitoring (BSM) control module (RH) detected for 1 s or more with the ignition switched ON (engine off or on).
U1A4B:96
Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (RH) internal circuit malfunction detected for 1 s or more with the ignition switched ON (engine off or on).
U1A4B:97
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (RH))
•  Radar sensor sensitivity in blind spot monitoring (BSM) control module (RH) decreases for 5 s or more with the ignition switched ON (engine off or on).
U2300:54
Configuration data not received from instrument cluster
•  Blind spot monitoring (BSM) control module (LH) cannot receive the configuration data from the instrument cluster with the ignition switched ON (engine off or on).
U2300:55
Instrument cluster configuration not implemented
•  Blind spot monitoring (BSM) control module (LH) received a signal which indicates the instrument cluster configuration is not performed with the ignition switched ON (engine off or on).
U2300:56
Configuration data unmatched with instrument cluster
•  Configuration data of the blind spot monitoring (BSM) control module and instrument cluster are not matched with the ignition switched ON (engine off or on).
U2300:64
Instrument cluster configuration error
•  Instrument cluster configuration error (signal error) detected with the ignition switched ON (engine off or on).
U3000:42
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) ROM malfunction detected with the ignition switched ON (engine off or on).
U3000:43
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) external RAM malfunction detected with the ignition switched ON (engine off or on).
U3000:44
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) internal RAM malfunction detected with the ignition switched ON (engine off or on).
U3000:45
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) ROM malfunction detected with the ignition switched ON (engine off or on).
U3000:46
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) EEPROM malfunction detected with the ignition switched ON (engine off or on).
U3000:47
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) monitoring system malfunction detected with the ignition switched ON (engine off or on).
U3000:48
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) communication circuit malfunction detected with the ignition switched ON (engine off or on).
U3000:49
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) voltage control circuit malfunction detected for 1 s or more with the ignition switched ON (engine off or on).
U3000:4B
Temperature temporarily increases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (LH) or (RH))
•  Blind spot monitoring (BSM) control module internal temperature of 105 °C {221 °F} or more detected for 10 s or more with the ignition switched ON (engine off or on).
U3000:54
Radar aiming is not performed or radar sensor axis is deviated (Blind spot monitoring (BSM) control module (LH))
•  Malfunction in radar aiming of blind spot monitoring (BSM) control module (LH) detected for 1 s or more with the ignition switched ON (engine off or on).
U3000:96
Blind spot monitoring (BSM) control module (LH) malfunction
•  Blind spot monitoring (BSM) control module (LH) internal circuit malfunction detected for 1 s or more with the ignition switched ON (engine off or on).
U3000:97
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (LH))
•  Radar sensor sensitivity in blind spot monitoring (BSM) control module (LH) decreases for 5 s or more with the ignition switched ON (engine off or on).
U3003:16
Blind spot monitoring (BSM) control module (LH) low power supply voltage input
•  Blind spot monitoring (BSM) control module (LH) power supply circuit voltage of 9 V or less is detected for 1 s or more with the ignition switched ON (engine off or on).
U3003:17
Blind spot monitoring (BSM) control module (LH) high power supply voltage input
•  Blind spot monitoring (BSM) control module (LH) power supply circuit voltage of 16 V or more is detected with the ignition switched ON (engine off or on).


Snapshot Data

Note
•  The blind spot monitoring (BSM) control module (LH) stores the following two types of snapshot data (vehicle information) when a DTC is detected and displays them in the Mazda Modular Diagnostic System (M-MDS).
―  Vehicle information detected by blind spot monitoring (BSM) control module (LH)
―  Vehicle information detected by instrument cluster and received by blind spot monitoring (BSM) control module (LH) via CAN communication
•  The data for all DTCs currently detected is stored.

—: Not applicable

Snapshot data item

Unit

Data contents

Data read/use method

Corresponding data monitor items
AAT
°C
°F
Ambient temperature
—
—
IC_VPWR
V
Instrument cluster power supply voltage
•  The blind spot monitoring (BSM) control module (LH) constantly receives the power supply voltage value of the instrument cluster sent via CAN communication from the instrument cluster.
•  If a DTC is detected, the blind spot monitoring (BSM) control module (LH) records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
VPWR*1
TOTAL_DIST
km
Miles
Accumulated total traveled distance from completion of vehicle until blind spot monitoring (BSM) control module (LH) detects DTC (Odometer value in instrument cluster)
The total traveled distance from which the blind spot monitoring (BSM) control module (LH) detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the odometer value in the instrument cluster.
2.  Verify the snapshot data item TOTAL_DIST.
3.  Subtract 2 from 1.
—
TOTAL_TIME
hh:mm:ss*2
Accumulated total elapsed time since vehicle completion until blind spot monitoring (BSM) control module (LH) detects a DTC
Note
•  When the ROOM fuse is removed, and the ignition is switched off, the time is not included in the elapsed time.
The elapsed time from which the blind spot monitoring (BSM) control module (LH) detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the instrument cluster PID item TOTAL_TIME.
2.  Verify the snapshot data item TOTAL_TIME.
3.  Subtract 2 from 1.
TOTAL_TIME*1
VPWR
V
Blind spot monitoring control module (LH) power supply voltage
—
VPWR_L

*1  :Instrument cluster PID (See ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER].)
*2  :The seconds may be indicated after the decimal point.

Data Monitor Function

•  With the PID/data monitor function, the input/output signal monitor items set in the blind spot monitoring (BSM) control module (LH) can be selected and read out in real-time.
•  The items which can be selected are as follows.

—: Not applicable

PID name

Unit/Status

Data contents

Module control terminal
Buzzer
Off/On
•  Off: Blind spot monitoring (BSM) warning buzzer does not sound.
•  On: Blind spot monitoring (BSM) warning buzzer sounds.
•  D (MS-CAN_H)
•  E (MS-CAN_L)
INTNL_TMP_L
°C, °F
Displays Blind spot monitoring (BSM) control module (LH) internal temperature.
—
INTNL_TMP_R
°C, °F
Displays Blind spot monitoring (BSM) control module (RH) internal temperature.
•  G (Local CAN_H)
•  J (Local CAN_L)
MAIN_SW
Off/On
•  Off: Blind spot monitoring (BSM) system non-operation signal is received.
•  On: Blind spot monitoring (BSM) system operation signal is received.
•  D (MS-CAN_H)
•  E (MS-CAN_L)
OP_BRT_L
—
Displays the Blind spot monitoring (BSM) warning light (LH) output brightness.
—
OP_BRT_R
—
Displays the Blind spot monitoring (BSM) warning light (RH) output brightness.
•  G (Local CAN_H)
•  J (Local CAN_L)
SYSTEM_ST
Off/Passive_On/Active_On/Failure
•  Off: Blind spot monitoring (BSM) system does not operate.
•  Passive_On: Blind spot monitoring (BSM) system is on standby.
•  Active_On: Blind spot monitoring (BSM) system operates.
•  Failure: Blind spot monitoring (BSM) system malfunction.
—
TURN_SW_L
Off/On
•  Off: Turn switch is in position other than LH.
•  On: Turn switch is in LH position.
•  D (MS-CAN_H)
•  E (MS-CAN_L)
TURN_SW_R
Off/On
•  Off: Turn switch is in position other than RH.
•  On: Turn switch is in RH position.
•  D (MS-CAN_H)
•  E (MS-CAN_L)
VPWR_L
V
Displays Blind spot monitoring (BSM) control module (LH) power supply voltage.
I (Power position (IG1))
VPWR_R
V
Displays Blind spot monitoring (BSM) control module (RH) power supply voltage.
•  G (Local CAN_H)
•  J (Local CAN_L)
VSPD
KPH, MPH
Displays the vehicle speed.
•  D (MS-CAN_H)
•  E (MS-CAN_L)
WRN_IND_L
Off/On
•  On: Blind spot monitoring (BSM) warning indicator light (LH) turns off.
•  Off: Blind spot monitoring (BSM) warning indicator light (LH) turns on.
•  G (Local CAN_H)
•  J (Local CAN_L)
WRN_IND_R
Off/On
•  On: Blind spot monitoring (BSM) warning indicator light (RH) turns off.
•  Off: Blind spot monitoring (BSM) warning indicator light (RH) turns on.
•  G (Local CAN_H)
•  J (Local CAN_L)
YAW_RATE
°/s
•  —: Vehicle is stopped or while moving straight ahead.
•  Exceeds 0°/s: Vehicle tilted left.
•  Less than 0°/s: Vehicle tilted right.
•  D (MS-CAN_H)
•  E (MS-CAN_L)


Simulation function

•  The simulation function drives the output parts set in the blind spot monitoring (BSM) control module regardless of the blind spot monitoring (BSM) control module control condition.
•  The items which can be selected are as follows.
Note
•  Simulation items on parts which are not equipped to the vehicle do not operate.

Simulation item

Unit/Operation

Data contents

Output part name

Operation condition
Buzzer
Off/On
•  Off: Blind spot monitoring (BSM) warning buzzer does not sound.
•  On: Blind spot monitoring (BSM) warning buzzer sounds.
Blind spot monitoring (BSM) warning buzzer (instrument cluster)
Ignition switched ON (engine off or on)
WRN_IND_L
Off/On
•  Off: Turns off the blind spot monitoring (BSM) warning light (LH).
•  On: Illuminates the blind spot monitoring (BSM) warning light (LH).
Blind spot monitoring (BSM) warning light (LH)
Ignition switched ON (engine off or on)
WRN_IND_R
Off/On
•  Off: Turns off the blind spot monitoring (BSM) warning light (RH).
•  On: Illuminates the blind spot monitoring (BSM) warning light (RH).
Blind spot monitoring (BSM) warning light (RH)
Ignition switched ON (engine off or on)