ON-BOARD DIAGNOSTIC [BLIND SPOT MONITORING (BSM) SYSTEM]

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2014 - Mazda6 - Body and Accessories

ON-BOARD DIAGNOSTIC [BLIND SPOT MONITORING (BSM) SYSTEM]

Outline

The on-board diagnostic function consists of the following functions: a malfunction detection function, which detects overall malfunctions in the BSM control module-related parts; a memory function, which stores detected DTCs; a display function, which indicates malfunction locations and status via DTC output; and 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 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

BSM control module (LH)×: Applicable—: Not applicable


DTC No.	BSM OFF indicator light	Description	Fail-safe function	Drive cycle	Self test type^*1	Memory function
B118C:11	Flash	BSM indicator light (LH) circuit malfunction	×	—	C, D	×
B118C:15	Flash	BSM indicator light (LH) circuit malfunction	×	—	C, D	×
U0001:88	Flash	Module communication error (HS-CAN)	×	—	C, D	×
U0100:00	Flash	Communication error with PCM	×	—	C, D	×
U0131:00	Flash	Communication error with EPS control module	×	—	C, D	×
U0155:00	Flash	Communication error with instrument cluster	×	—	C, D	×
U0214:00	Flash	Communication error with start stop unit	×	—	C, D	×
U0233:00	Flash	Communication error with BSM control module (RH)	×	—	C, D	×
U0401:68	Flash	Error signal received from PCM	×	—	C, D	×
U0420:68	Flash	Error signal received from EPS control module	×	—	C, D	×
U0423:68	Flash	Error signal received from instrument cluster	×	—	C, D	×
U0515:68	Flash	Error signal received from start stop unit	×	—	C, D	×
U2300:54	Flash	Configuration signal not received	×	—	C, D	×
U2300:56	Flash	Instrument cluster configuration error	×	—	C, D	×
U2300:64	Flash	Configuration data unmatched with instrument cluster	×	—	C, D	×
U3000:01	Flash	Electrical malfunction inside BSM control module	×	—	C, D	×
U3000:09	Flash	BSM control module internal malfunction	×	—	C, D	×
U3000:54	Flash	Radar performance malfunction	×	—	C, D	×
U3000:97	Flash	Radar performance malfunction	×	—	C, D	×
U3003:04	Flash	Instrument cluster configuration error	×	—	C, D	×
U3003:16	Flash	BSM control module low power supply voltage input (less than 8.2 V)	×	—	C, D	×
U3003:17	Flash	BSM control module high power supply voltage input (16.8 V or more)	×	—	C, D	×

BSM control module (RH)×: Applicable—: Not applicable


DTC No.	BSM OFF indicator light	Description	Fail-safe function	Drive cycle	Self test type^*1	Memory function
B118D:11	Flash	BSM indicator light (RH) circuit malfunction	×	—	C, D	×
B118D:15	Flash	BSM indicator light (RH) circuit malfunction	×	—	C, D	×
U0001:88	Flash	Module communication error (HS-CAN)	×	—	C, D	×
U0100:00	Flash	Communication error with PCM	×	—	C, D	×
U0131:00	Flash	Communication error with EPS control module	×	—	C, D	×
U0155:00	Flash	Communication error with instrument cluster	×	—	C, D	×
U0214:00	Flash	Communication error with start stop unit	×	—	C, D	×
U0232:00	Flash	Communication error with BSM control module (LH)	×	—	C, D	×
U0401:68	Flash	Error signal received from PCM	×	—	C, D	×
U0420:68	Flash	Error signal received from EPS control module	×	—	C, D	×
U0423:68	Flash	Error signal received from instrument cluster	×	—	C, D	×
U0515:68	Flash	Error signal received from start stop unit	×	—	C, D	×
U2300:54	Flash	Configuration signal not received	×	—	C, D	×
U2300:56	Flash	Instrument cluster configuration error	×	—	C, D	×
U2300:64	Flash	Configuration data unmatched with instrument cluster	×	—	C, D	×
U3000:01	Flash	Electrical malfunction inside BSM control module	×	—	C, D	×
U3000:09	Flash	BSM control module internal malfunction	×	—	C, D	×
U3000:54	Flash	Radar performance malfunction	×	—	C, D	×
U3000:97	Flash	Radar performance malfunction	×	—	C, D	×
U3003:04	Flash	Instrument cluster configuration error	×	—	C, D	×
U3003:16	Flash	BSM control module low power supply voltage input (less than 8.2 V)	×	—	C, D	×
U3003:17	Flash	BSM control module high power supply voltage input (16.8 V or more)	×	—	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.

Status byte for DTC

The status byte is the two digits (two digits after hyphen (-)) after the 7-digit DTC.

The status byte is a code which indicates the pending code, current/past malfunction status, or warning illumination status.

The status byte 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

BSM control module (LH)


DTC No.	System malfunction location	Detection condition
B118C:11	BSM indicator light (LH) circuit malfunction	BSM control module (LH) performs measurement at 0.01 s intervals and a short to ground in the BSM indicator light (LH) circuit is detected 48 times continuously.
B118C:15	BSM indicator light (LH) circuit malfunction	BSM control module (LH) performs measurement at 0.01 s intervals and a short to power supply in the BSM indicator light (LH) circuit is detected 48 times continuously.
U0001:88	Module communication error (HS-CAN)	BSM control module detected a CAN bus communication line (HS-CAN) malfunction for 0.4 s or more.
U0100:00	Communication error with PCM	BSM control module cannot receive a CAN signal from the PCM for 1.5 s or more.
U0131:00	Communication error with EPS control module	BSM control module cannot receive a CAN signal from the EPS control module for 1.5 s or more.
U0155:00	Communication error with instrument cluster	BSM control module cannot receive a CAN signal from the instrument cluster.
U0214:00	Communication error with start stop unit	BSM control module cannot receive a CAN signal from the start stop unit for 1.5 s or more.
U0233:00	Communication error with BSM control module (RH)	No communication between BSM control module (LH) and (RH) for 1 s or more.
U0401:68	Error signal received from PCM	BSM control module receives the error signal from the PCM for 1 s or more.
U0420:68	Error signal received from EPS control module	BSM control module receives the error signal from the EPS control module for 1 s or more.
U0423:68	Error signal received from instrument cluster	BSM control module receives the error signal from the instrument cluster for 1 s or more.
U0515:68	Error signal received from start stop unit	BSM control module receives the error signal from the start stop unit for 1 s or more.
U2300:54	Configuration signal not received	BSM control module cannot receive the configuration signal it is supposed to receive.
U2300:56	Instrument cluster configuration error	Configuration data of the BSM control module and instrument cluster are not matched.
U2300:64	Configuration data unmatched with instrument cluster	Instrument cluster configuration error (signal error) detected.
U3000:01	Electrical malfunction inside BSM control module	BSM control module is detected an electrical malfunction inside.
U3000:09	BSM control module internal malfunction	BSM control module detected a malfunction inside the voltage control oscillator.
U3000:54	Radar performance malfunction	BSM control module detected malfunction in misalignment.
U3000:97	Radar performance malfunction	BSM control module internal radar sensor sensitivity is decreased. BSM control module internal radar sensor axis is deviated.
U3003:04	Instrument cluster configuration error	Instrument cluster configuration error detected.
U3003:16	BSM control module low power supply voltage input (less than 8.2 V)	BSM control module power supply voltage of less than 8.2 V is detected for 2 s or more.
U3003:17	BSM control module high power supply voltage input (16.8 V or more)	BSM control module power supply voltage of 16.8 V or more is detected for 2 s or more.

BSM Control Module (RH)


DTC No.	Description	Detection condition
B118D:11	BSM indicator light (RH) circuit malfunction	BSM control module (RH) performs measurement at 0.01 s intervals and a short to ground in the BSM indicator light (RH) circuit is detected 48 times continuously.
B118D:15	BSM indicator light (RH) circuit malfunction	BSM control module (RH) performs measurement at 0.01 s intervals and a short circuit to power supply in the BSM indicator light (RH) circuit is detected 48 times continuously.
U0001:88	Module communication error (HS-CAN)	BSM control module detected a CAN bus communication line (HS-CAN) malfunction for 0.4 s or more.
U0100:00	Communication error with PCM	BSM control module cannot receive a CAN signal from the PCM for 1.5 s or more.
U0131:00	Communication error with EPS control module	BSM control module cannot receive a CAN signal from the EPS control module for 1.5 s or more.
U0155:00	Communication error with instrument cluster	BSM control module cannot receive a CAN signal from the instrument cluster.
U0214:00	Communication error with start stop unit	BSM control module cannot receive a CAN signal from the start stop unit for 1.5 s or more.
U0232:00	Communication error with BSM control module (LH)	No communication between BSM control module (LH) and (RH) for 1 s or more.
U0401:68	Error signal received from PCM	BSM control module receives the error signal from the PCM for 1 s or more.
U0420:68	Error signal received from EPS control module	BSM control module receives the error signal from the EPS control module for 1 s or more.
U0423:68	Error signal received from instrument cluster	BSM control module receives the error signal from the instrument cluster for 1 s or more.
U0515:68	Error signal received from start stop unit	BSM control module receives the error signal from the start stop unit for 1 s or more.
U2300:54	Configuration signal not received	BSM control module cannot receive the configuration signal it is supposed to receive.
U2300:56	Instrument cluster configuration error	Configuration data of the BSM control module and instrument cluster are not matched.
U2300:64	Configuration data unmatched with instrument cluster	Instrument cluster configuration error (signal error) detected.
U3000:01	Electrical malfunction inside BSM control module	BSM control module is detected an electrical malfunction inside.
U3000:09	BSM control module internal malfunction	BSM control module detected a malfunction inside the voltage control oscillator.
U3000:54	Radar performance malfunction	BSM control module detected malfunction in misalignment.
U3003:04	Instrument cluster configuration error	BSM control module internal radar sensor sensitivity is decreased. BSM control module internal radar sensor axis is deviated.
U3000:97	Radar performance malfunction	Instrument cluster configuration error detected.
U3003:16	BSM control module low power supply voltage input (less than 8.2 V)	BSM control module power supply voltage of less than 8.2 V is detected for 2 s or more.
U3003:17	BSM control module high power supply voltage input (16.8 V or more)	BSM control module power supply voltage of 16.8 V or more is detected for 2 s or more.

Data Monitor Function

With the PID/data monitor function, input/output signal monitor items set in the BSM control module can be selected and read out in real-time.

PID/data monitor table

BSM control module (LH)—: Not applicable


PID name	Unit/Status	Data contents	Inspection item(s)
BSM_OFF_IL	On/Off	On: BSM OFF indicator light is illuminated. Off: BSM OFF indicator light is not illuminated.	BSM OFF switch BSM OFF indicator light (Instrument cluster)
BSM_ST	On/Off	On: Blind spot monitoring (BSM) (LH) is operated. Off: Blind spot monitoring (BSM) (LH) is not operated.	BSM control module (LH)
Buzzer	On/Off	On: BSM buzzer is operated. Off: BSM buzzer is not operated.	BSM control module Instrument cluster
DTC_CNT	—	Displays number of DTCs stored in the BSM control module (LH)	BSM control module (LH)
IL_MODE	Off/On	Off: BSM OFF indicator light is illuminated in night mode. On: BSM OFF indicator light is illuminated in daytime mode.	BSM OFF indicator light (Instrument cluster)
RCTA_BUZZER	Off/On	Off: RCTA buzzer does not sound. On: RCTA buzzer sounds.	Audio unit
RCTA_OFF_IL	Off/On	Off: RCTA OFF indicator is turned off. On: RCTA OFF indicator is turned on.	Audio unit
RCTA_WARN	Off/On	Off: RCTA warning indicator is turned off. On: RCTA warning indicator is turned on.	Audio unit
SHIFT_R	Not_R/R	ATX: Not_R: Selector lever is in position other than R. R: Selector lever is in R position. MTX: Not_R: Shift lever is in position other than reverse. R: Shift lever is in reverse position.	ATX: Transaxle range sensor (TCM) MTX: Back-up light switch
SWA_POS	° (deg)	Displays steering angle signal (estimated absolute angle) Steering wheel in neutral position: Near 0 degrees Steering wheel turned to left: Changes from 0 degrees to positive Steering wheel turned to right: Changes from 0 degrees to negative	Perform the DTC inspection for the PCM, DSC HU/CM, and EPS CM, and if any DTC is displayed, repair the malfunctioning part according to the applicable DTC troubleshooting. After performing the DTC inspection, perform the following procedures: Switch the ignition off, and after 2 min or more have elapsed, switch the ignition ON (engine off or on). Start the engine and drive the vehicle 10 m {33 ft} or more in a straight line at a speed of 10 km/h {6.2 mph} or more. Stop the vehicle with the wheels in the straight-ahead position. Verify the operation condition of STR_AB_ANG using the M-MDS. If an abnormal value is indicated again, replace the EPS CM.
TURN_SW_L	On/Off	On: Turn switch is in LH position. Off: Turn switch is in position other than LH.	Turn Switch
TURN_SW_R	On/Off	On: Turn switch is in RH position. Off: Turn switch is in position other than RH.	Turn Switch
VPWR_IG1	V	Displays BSM control module (LH) power supply voltage	BSM control module (LH) IG1 relay Battery
VSPD	KPH, MPH	Displays vehicle speed	—
WRN_IND_L	Off/On	Off: BSM indicator light (LH) is not illuminated. On: BSM indicator light (LH) is illuminated.	BSM indicator light (LH)

BSM control module (RH)—: Not applicable


PID name	Unit/Status	Data contents	Inspection item(s)
BSM_ST	On/Off	On: Blind spot monitoring (BSM) (RH) is operated. Off: Blind spot monitoring (BSM) (RH) is not operated.	BSM control module (RH)
DTC_CNT	—	Displays number of DTCs stored in the BSM control module (RH)	BSM control module (RH)
IL_MODE	Off/On	Off: BSM OFF indicator light is illuminated in night mode. On: BSM OFF indicator light is illuminated in daytime mode.	BSM OFF indicator light (Instrument cluster)
RCTA_BUZZER	Off/On	Off: RCTA buzzer does not sound. On: RCTA buzzer sounds.	Audio unit
RCTA_OFF_IL	Off/On	Off: RCTA OFF indicator is turned off. On: RCTA OFF indicator is turned on.	Audio unit
RCTA_WARN	Off/On	Off: RCTA warning indicator is turned off. On: RCTA warning indicator is turned on.	Audio unit
SHIFT_R	Not_R/R	ATX: Not_R: Selector lever is in position other than R. R: Selector lever is in R position. MTX: Not_R: Shift lever is in position other than reverse. R: Shift lever is in reverse position.	ATX: Transaxle range sensor (TCM) MTX: Back-up light switch
SWA_POS	° (deg)	Displays steering angle signal (estimated absolute angle) Steering wheel in neutral position: Near 0 degrees Steering wheel turned to left: Changes from 0 degrees to positive Steering wheel turned to right: Changes from 0 degrees to negative	Perform the DTC inspection for the PCM, DSC HU/CM, and EPS CM, and if any DTC is displayed, repair the malfunctioning part according to the applicable DTC troubleshooting. After performing the DTC inspection, perform the following procedures: Switch the ignition off, and after 2 min or more have elapsed, switch the ignition ON (engine off or on). Start the engine and drive the vehicle 10 m {33 ft} or more in a straight line at a speed of 10 km/h {6.2 mph} or more. Stop the vehicle with the wheels in the straight-ahead position. Verify the operation condition of STR_AB_ANG using the M-MDS. If an abnormal value is indicated again, replace the EPS CM.
TURN_SW_L	On/Off	On: Turn switch is in LH position. Off: Turn switch is in position other than LH.	Turn Switch
TURN_SW_R	On/Off	On: Turn switch is in RH position. Off: Turn switch is in position other than RH.	Turn Switch
VPWR_IG1	V	Displays BSM control module (RH) power supply voltage	BSM control module (RH) IG1 relay Battery
VSPD	KPH, MPH	Displays vehicle speed	—
WRN_IND_R	Off/On	Off: BSM indicator light (RH) is not illuminated. On: BSM indicator light (RH) is illuminated.	BSM indicator light (RH)

Active Command Modes Function

The active command modes are shown below.

Active command modes table

BSM control module (LH)


Command name	Unit/Operation	Data contents	Output part name
BSM_OFF_IL	On/Off	On: Illuminates BSM OFF indicator light. Off: Turns off BSM OFF indicator light.	BSM OFF indicator light (Instrument cluster)
Buzzer	On/Off	On: Operates BSM warning alarm. Off: Stops BSM warning alarm.	BSM warning alarm (Instrument cluster)
IL_MODE	Off/On	Off: Illuminates BSM OFF indicator light in night mode. On: Illuminates BSM OFF indicator light in daytime mode.	BSM OFF indicator light (Instrument cluster)
RCTA_BUZZER	Off/On	Off: RCTA buzzer does not sound. On: RCTA buzzer sounds.	Audio unit
RCTA_OFF_IL	Off/On	Off: Turn off RCTA OFF indicator. On: Illuminates RCTA OFF indicator.	Audio unit
RCTA_WARN	Off/On	Off: Turn off RCTA warning indicator. On: Illuminates RCTA warning indicator.	Audio unit
VSPD	OFF/ON	OFF: Does not input vehicle speed. ON: Inputs vehicle speed of 34 km/h {21 mph}.	BSM control module (LH)
WRN_IND_L	Off/On	Off: Turns off BSM indicator light (LH). On: Illuminates BSM indicator light (LH).	BSM indicator light (LH)

BSM Control Module (RH)


Command name	Unit/Operation	Data contents	Output part name
IL_MODE	Off/On	Off: Illuminates BSM OFF indicator light in night mode. On: Illuminates BSM OFF indicator light in daytime mode.	BSM OFF indicator light (Instrument cluster)
RCTA_BUZZER	Off/On	Off: RCTA buzzer does not sound. On: RCTA buzzer sounds.	Audio unit
RCTA_OFF_IL	Off/On	Off: Turn off RCTA OFF indicator. On: Illuminates RCTA OFF indicator.	Audio unit
RCTA_WARN	Off/On	Off: Turn off RCTA warning indicator. On: Illuminates RCTA warning indicator.	Audio unit
VSPD	OFF/ON	OFF: Does not input vehicle speed. ON: Inputs vehicle speed of 34 km/h {21 mph}.	BSM control module (RH)
WRN_IND_R	Off/On	Off: Turns off BSM indicator light (RH). On: Illuminates BSM indicator light (RH).	BSM indicator light (RH)

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