ON-BOARD DIAGNOSTIC [REAR VEHICLE MONITORING (RVM) SYSTEM]

id092200021851


Outline

•  The on-board diagnostic function consists of the following functions:
―  A malfunction detection function, which detects overall malfunctions in the RVM control module-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 rear vehicle monitoring control module records the malfunction as a DTC. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

×: Applicable
—: Not applicable

DTC No.

Rear vehicle monitoring (RVM) system warning light (amber)

Description

Fail-safe function

Drive cycle

Self test type*1

Memory function
B11CB:11
On
RVM warning indicator light (RH) circuit malfunction
×
—
C, D
×
B11CB:15
On
RVM warning indicator light (RH) circuit malfunction
×
—
C, D
×
B11D3:11
On
RVM warning indicator light (LH) circuit malfunction
×
—
C, D
×
B11D3:15
On
RVM warning indicator light (LH) circuit malfunction
×
—
C, D
×
B11F2:23
On
RVM switch circuit malfunction
×
—
C, D
×
U0001:88
On
Unit communication error (MS-CAN)
×
—
C, D
×
U0028:87
On
Rear vehicle monitoring 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
Rear vehicle monitoring control module (RH) low power supply voltage input
×
—
C, D
×
U1A4B:17
On
Rear vehicle monitoring control module (RH) high power supply voltage input
×
—
C, D
×
U1A4B:43
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:44
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:45
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:46
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:47
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:48
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:49
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:54
On
Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (RH))
×
—
C, D
×
U1A4B:96
On
Rear vehicle monitoring control module (RH) malfunction
×
—
C, D
×
U1A4B:97
On
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Rear vehicle monitoring control module (RH))
×
—
C, D
×
U2100:00
On
Rear vehicle monitoring control module configuration error
×
—
C, D
×
U3000:42
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:43
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:44
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:45
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:46
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:47
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:48
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:49
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:4B
On
Temperature temporarily increases depending on various external and environmental factors (Rear vehicle monitoring control module (LH) or (RH))
×
—
C, D
×
U3000:54
On
Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (LH))
×
—
C, D
×
U3000:96
On
Rear vehicle monitoring control module (LH) malfunction
×
—
C, D
×
U3000:97
On
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Rear vehicle monitoring control module (LH))
×
—
C, D
×
U3003:16
On
Rear vehicle monitoring control module (LH) low power supply voltage input
×
—
C, D
×
U3003:17
On
Rear vehicle monitoring 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.
ac5wzn00002010
•  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.

System malfunction location

Detection condition
B11CB:11
RVM warning indicator light (RH) circuit malfunction
Rear vehicle monitoring control module (RH) detects a short to ground in the RVM warning indicator light (RH) circuit.
B11CB:15
RVM warning indicator light (RH) circuit malfunction
Rear vehicle monitoring control module (RH) detects an open circuit or short to power supply in the RVM warning indicator light (RH) circuit.
B11D3:11
RVM warning indicator light (LH) circuit malfunction
Rear vehicle monitoring control module (RH) detects a short to ground in RVM warning indicator light (LH) circuit.
B11D3:15
RVM warning indicator light (LH) circuit malfunction
Rear vehicle monitoring control module (RH) detects an open circuit or short to power supply in the RVM warning indicator light (LH) circuit.
B11F2:23
RVM switch circuit malfunction
Rear vehicle monitoring control module (LH) receives the RVM switch ON signal from the instrument cluster for 2 min or more.
U0001:88
Unit communication error (MS-CAN)
Rear vehicle monitoring control module (LH) detects a CAN bus communication line (MS-CAN) malfunction.
U0028:87
Rear vehicle monitoring control module (LH) and (RH) communication error
No communication between rear vehicle monitoring control modules (LH) and (RH) for 1 s or more.
U0100:00
Communication error with PCM
Rear vehicle monitoring control module (LH) cannot receive the CAN signal from the PCM for 2 s or more.
U0121:00
Communication error with DSC HU/CM
Rear vehicle monitoring control module (LH) cannot receive the CAN signal from the DSC HU/CM for 2 s or more.
U0155:00
Communication error with instrument cluster
Rear vehicle monitoring control module (LH) cannot receive the CAN signal from the instrument cluster for 2 s or more.
U0214:00
Communication error with start stop unit
Rear vehicle monitoring control module (LH) cannot receive the CAN signal from the start stop unit for 2 s or more.
U0401:68
Error signal received from PCM
Rear vehicle monitoring control module (LH) receives the error signal from the PCM for 2 s or more.
U0415:68
Error signal received from DSC HU/CM
Rear vehicle monitoring control module (LH) receives the error signal from the DSC HU/CM for 2 s or more.
U0423:68
Error signal received from instrument cluster
Rear vehicle monitoring control module (LH) receives the error signal from the instrument cluster for 2 s or more.
U0515:68
Error signal received from start stop unit
Rear vehicle monitoring control module (LH) receives the error signal from the start stop unit for 2 s or more.
U1A4B:16
Rear vehicle monitoring control module (RH) low power supply voltage input
Rear vehicle monitoring control module (RH) power supply circuit voltage of 9 V or less is detected for 1 s or more.
U1A4B:17
Rear vehicle monitoring control module (RH) high power supply voltage input
Rear vehicle monitoring control module (RH) power supply circuit voltage of 16 V or more is detected for 1 s or more.
U1A4B:43
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) external RAM malfunction detected.
U1A4B:44
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) internal RAM malfunction detected.
U1A4B:45
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) ROM malfunction detected.
U1A4B:46
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) EEPROM malfunction detected.
U1A4B:47
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) monitoring system malfunction detected.
U1A4B:48
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) communication circuit malfunction detected.
U1A4B:49
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) voltage control circuit malfunction detected for 1 s or more.
U1A4B:54
Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (RH))
Malfunction in radar aiming of the rear vehicle monitoring control module (RH) detected for 1 s or more.
U1A4B:96
Rear vehicle monitoring control module (RH) malfunction
Rear vehicle monitoring control module (RH) internal circuit malfunction detected for 1 s or more.
U1A4B:97
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Rear vehicle monitoring control module (RH))
Radar sensor sensitivity in rear vehicle monitoring control module (RH) decreases for 5 s or more.
U2100:00
Rear vehicle monitoring control module configuration error
Rear vehicle monitoring control module configuration error detected.
U3000:42
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) ROM malfunction detected.
U3000:43
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) external RAM malfunction detected.
U3000:44
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) internal RAM malfunction detected.
U3000:45
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) ROM malfunction detected.
U3000:46
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) EEPROM malfunction detected.
U3000:47
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) monitoring system malfunction detected.
U3000:48
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) communication circuit malfunction detected.
U3000:49
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) voltage control circuit malfunction detected for 1 s or more.
U3000:4B
Temperature temporarily increases depending on various external and environmental factors (Rear vehicle monitoring control module (LH) or (RH))
Rear vehicle monitoring control module internal temperature of 105 °C {221 °F} or more detected for 10 s or more.
U3000:54
Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (LH))
Malfunction in radar aiming of rear vehicle monitoring control module (LH) detected for 1 s or more.
U3000:96
Rear vehicle monitoring control module (LH) malfunction
Rear vehicle monitoring control module (LH) internal circuit malfunction detected for 1 s or more.
U3000:97
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (Rear vehicle monitoring control module (LH))
Radar sensor sensitivity in rear vehicle monitoring control module (LH) decreases for 5 s or more.
U3003:16
Rear vehicle monitoring control module (LH) low power supply voltage input
Rear vehicle monitoring control module (LH) power supply circuit voltage of 9 V or less is detected for 1 s or more.
U3003:17
Rear vehicle monitoring control module (LH) high power supply voltage input
Rear vehicle monitoring control module (LH) power supply circuit voltage of 16 V or more is detected.


Data Monitor Function

•  The PID/data monitor function performs reading in real time of optionally selected input/output signal monitor items that are set in the rear vehicle monitoring control module.

PID/data monitor table

—: Not applicable

PID name

Unit/Status

Data contents

Module control terminal
AIM_ANGL_L
° (deg)
Displays radar aiming correction angle corrected by rear vehicle monitoring control module (LH) when performing rear vehicle monitoring radar aiming.
—
AIM_ANGL_R
° (deg)
Displays radar aiming correction angle corrected by rear vehicle monitoring control module (RH) when performing rear vehicle monitoring radar aiming.
H, J (CAN)
Buzzer
Off/On
•  Off: Rear vehicle monitoring (RVM) warning alarm does not sound.
•  On: Rear vehicle monitoring (RVM) warning alarm sounds.
A, D (CAN)
INTNL_TMP_L
°C, °F
Displays rear vehicle monitoring control module (LH) internal temperature.
—
INTNL_TMP_R
°C, °F
Displays rear vehicle monitoring control module (RH) internal temperature.
H, J (CAN)
MAIN_SW
Off/On
•  Off: RVM switch not pressed
•  On: RVM switch pressed
A, D (CAN)
OP_BRT_L
—
Displays the RVM warning indicator light (LH) output brightness.
—
OP_BRT_R
—
Displays the RVM warning indicator light (RH) output brightness.
H, J (CAN)
RVM_SYS_ST
Off/Passive_On/Active_On/Failure
•  Off: Rear vehicle monitoring system does not operate.
•  Passive_On: Rear vehicle monitoring system is on standby.
•  Active_On: Rear vehicle monitoring system operates.
•  Failure: Rear vehicle monitoring system malfunction
H, J (CAN)
TURN_SW_L
Off/On
•  Off: Turn switch is in position other than LH.
•  On: Turn switch is in LH position.
A, D (CAN)
TURN_SW_R
Off/On
•  Off: Turn switch is in position other than RH.
•  On: Turn switch is in RH position.
A, D (CAN)
VPWR_L
V
Displays rear vehicle monitoring control module (LH) power supply voltage.
I (Power supply)
VPWR_R
V
Displays rear vehicle monitoring control module (RH) power supply voltage.
H, J (CAN)
VSPD
KPH, MPH
Displays the vehicle speed.
A, D (CAN)
YAW_RATE
°/s
•  —: Vehicle is stopped or while moving straight ahead.
•  Exceeds 0°/s: Vehicle tilted left.
•  Less than 0°/s: Vehicle tilted right.
A, D (CAN)


Active Command Modes Function

•  The active command modes are shown below.

Command name

Unit/Operation

Data contents

Output part name
Buzzer
Off/On
•  Off: Rear vehicle monitoring (RVM) warning alarm does not sound.
•  On: Rear vehicle monitoring (RVM) warning alarm sounds.
Rear vehicle monitoring (RVM) warning alarm (instrument cluster)
WRN_IND_L
Off/On
•  Off: Turns off the RVM warning indicator light (LH).
•  On: Illuminates the RVM warning indicator light (LH).
RVM warning indicator light (LH)
WRN_IND_R
Off/On
•  Off: Turns off the RVM warning indicator light (RH).
•  On: Illuminates the RVM warning indicator light (RH).
RVM warning indicator light (RH)