ON-BOARD DIAGNOSTIC [PARKING ASSIST UNIT]

id092200021856


Outline

•  The on-board diagnostic function consists of the following functions:
―  A malfunction detection function, which detects overall malfunctions in the parking assist unit-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.

Function


Malfunction detection function

•  Detects malfunctions in input/output signals.
•  If a malfunction occurs, the parking assist unit 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.

Warning/indicator light

Description

Fail-safe

Drive cycle

Self test type*1

Memory function
B1B44:14
—
Corner ultrasonic sensor (RH) circuit malfunction
×
—
C, D
×
B1B44:2A
—
Corner ultrasonic sensor (RH) characteristic malfunction
×
—
C, D
×
B1B46:14
—
Ultrasonic sensor (RH) circuit malfunction
×
—
C, D
×
B1B46:2A
—
Ultrasonic sensor (RH) characteristic malfunction
×
—
C, D
×
B1B48:14
—
Corner ultrasonic sensor (LH) circuit malfunction
×
—
C, D
×
B1B48:2A
—
Corner ultrasonic sensor (LH) characteristic malfunction
×
—
C, D
×
B1B50:14
—
Ultrasonic sensor (LH) circuit malfunction
×
—
C, D
×
B1B50:2A
—
Ultrasonic sensor (LH) characteristic malfunction
×
—
C, D
×
U0010:88
—
Module communication error (MS-CAN)
×
—
C, D
×
U0100:82*2
—
Error signal received from PCM
×
—
C, D
×
U0121:82*2
—
Error signal received from DSC HU/CM
×
—
C, D
×
U0155:00
—
Communication error with instrument cluster
×
—
C, D
×
U0415:68*2
—
Error signal received from DSC HU/CM
×
—
C, D
×
U0423:68
—
Error signal received from instrument cluster
×
—
C, D
×
U2107:93*2
—
Smart city brake support [reverse] (SCBS R) forcibly turned off
—
—
C, D
×
U2300:54
—
Configuration data not received from instrument cluster
×
—
C, D
×
U2300:55
—
Instrument cluster configuration not implemented
×
—
C, D
×
U2300:56
—
Configuration data unmatched with instrument cluster
×
—
C, D
×
U3000:49
—
Parking assist unit internal malfunction
×
—
C, D
×
U3003:16
—
Parking assist unit low power supply voltage input
×
—
C, D
×
U3003:17
—
Parking assist unit high power supply voltage input
×
—
C, D
×

*1  :C: CMDTC self test, D: ODDTC self test
*2  :With smart city brake support [reverse] (SCBS R)


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.
ac5wzn00001569


Status byte for DTC

•  The two digits (two digits after hyphen (-)) after the 7-digit DTC.
ac5wzn00002011
•  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
B1B44:14
Corner ultrasonic sensor (RH) circuit malfunction
•  The parking assist unit detected a corner ultrasonic sensor (RH) circuit malfunction with the ignition switched ON (engine off or on).
B1B44:2A
Corner ultrasonic sensor (RH) characteristic malfunction
•  Parking assist unit detected a corner ultrasonic sensor (RH) characteristic malfunction with the ignition switched ON (engine off or on).
B1B46:14
Ultrasonic sensor (RH) circuit malfunction
•  The parking assist unit detected a ultrasonic sensor (RH) circuit malfunction with the ignition switched ON (engine off or on).
B1B46:2A
Ultrasonic sensor (RH) characteristic malfunction
•  Parking assist unit detected a ultrasonic sensor (RH) characteristic malfunction with the ignition switched ON (engine off or on).
B1B48:14
Corner ultrasonic sensor (LH) circuit malfunction
•  The parking assist unit detected a corner ultrasonic sensor (LH) circuit malfunction with the ignition switched ON (engine off or on).
B1B48:2A
Corner ultrasonic sensor (LH) characteristic malfunction
•  Parking assist unit detected a corner ultrasonic sensor (LH) characteristic malfunction with the ignition switched ON (engine off or on).
B1B50:14
Ultrasonic sensor (LH) circuit malfunction
•  The parking assist unit detected a ultrasonic sensor (LH) circuit malfunction with the ignition switched ON (engine off or on).
B1B50:2A
Ultrasonic sensor (LH) characteristic malfunction
•  Parking assist unit detected a ultrasonic sensor (LH) characteristic malfunction with the ignition switched ON (engine off or on).
U0010:88
Module communication error (MS-CAN)
•  Parking assist unit detects the CAN bus communication line (MS-CAN) malfunction 10 times continuously with the ignition switched ON (engine off or on).
U0100:82
Error signal received from PCM
•  Parking assist unit receives the error signal from the PCM for 5 s or more with the ignition switched ON (engine off or on).
U0121:82
Error signal received from DSC HU/CM
•  Parking assist unit receives the error signal from the DSC HU/CM for 5 s or more with the ignition switched ON (engine off or on).
U0155:00
Communication error with instrument cluster
•  Parking assist unit cannot receive the CAN signal from the instrument cluster for 5 s or more with the ignition switched ON (engine off or on).
U0415:68
Error signal received from DSC HU/CM
•  Parking assist unit receives the error signal from the DSC HU/CM for 1 s or more with the ignition switched ON (engine off or on).
U0423:68
Error signal received from instrument cluster
•  Parking assist unit receives the error signal from the instrument cluster for 5 s or more with the ignition switched ON (engine off or on).
U2107:93
Smart city brake support [reverse] (SCBS R) forcibly turned off
•  Parking assist unit detected that the smart city brake support [reverse] (SCBS R) is forcibly turned off with the ignition switched ON (engine off or on).
U2300:54
Configuration data not received from instrument cluster
•  Parking assist unit 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
•  Parking assist unit 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 parking assist unit and instrument cluster are not matched with the ignition switched ON (engine off or on).
U3000:49
Parking assist unit internal malfunction
•  With the ignition switched ON (engine off or on), a malfunction in the parking assist unit is detected.
U3003:16
Parking assist unit low power supply voltage input
•  Parking assist unit power supply circuit voltage of 8.0 ± 0.8 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).
U3003:17
Parking assist unit high power supply voltage input
•  Parking assist unit power supply circuit voltage of 16.8 ± 0.8 V or more is detected for 5 s or more with the ignition switched ON (engine off or on).


Data Monitor Function

•  With the PID/data monitor function, the input/output signal monitor items set in the parking assist unit can be selected and read out in real-time.
•  The items which can be selected are as follows.

PID/data monitor table

PID

Unit/Operation

Data contents

Module control terminal
BUZZER_F*1
No_Detection/Close_Distance/Middle_Distance/Far_Distance/Max_Distance/Freezing/Wire_Breaking
•  No_Detection: Obstruction is not detected
•  Close_Distance: Obstruction is detected within 40 cm {15 in}
•  Middle_Distance: Obstruction is detected within 40—50 cm {16—19 in}
•  Far_Distance: Obstruction is detected within 50—65 cm {20—25 in}
•  Max_Distance: Obstruction is detected within 65—150 cm {26—59.0 in}
•  Freezing: Front ultrasonic sensor is frozen
•  Wire_Breaking: Open circuit in front ultrasonic sensor circuit
•  Y (Front parking sensor buzzer)
•  Z (Front parking sensor buzzer GND)
BUZZER_R
No_Detection/Close_Distance/Middle_Distance/Far_Distance/Max_Distance/Freezing/Wire_Breaking
•  No_Detection: Obstruction is not detected
•  Close_Distance: Obstruction is detected within 35 cm {13 in}
•  Middle_Distance: Obstruction is detected within 35—40 cm {14—17 in}
•  Far_Distance: Obstruction is detected within 45—60 cm {18—23 in}
•  Max_Distance: Obstruction is detected within 60—150 cm {24.0—59.0 in}
•  Freezing: Ultrasonic sensor is frozen
•  Wire_Breaking: Open circuit in ultrasonic sensor circuit
•  W (Rear parking sensor buzzer)
•  X (Rear parking sensor buzzer GND)
D_FRONT_L*1
m
Displays the detection distance of the front ultrasonic sensor (LH).
•  K (Front ultrasonic sensor)
•  L (Front ultrasonic sensor GND)
D_FRONT_L_C*1
m
Displays the detection distance of the front corner ultrasonic sensor (LH).
•  I (Front ultrasonic sensor)
•  J (Front ultrasonic sensor GND)
D_FRONT_R*1
m
Displays the detection distance of the front ultrasonic sensor (RH).
•  M (Front ultrasonic sensor)
•  N (Front ultrasonic sensor GND)
D_FRONT_R_C*1
m
Displays the detection distance of the front corner ultrasonic sensor (RH).
•  O (Front corner ultrasonic sensor)
•  P (Front ultrasonic sensor GND)
D_REAR_L
m
Displays the detection distance of the ultrasonic sensor (LH).
•  A (Ultrasonic sensor)
•  B (Ultrasonic sensor GND)
D_REAR_L_C
m
Displays the detection distance of the corner ultrasonic sensor (LH).
•  E (Ultrasonic sensor)
•  F (Corner ultrasonic sensor GND)
D_REAR_R
m
Displays the detection distance of the ultrasonic sensor (RH).
•  C (Ultrasonic sensor)
•  D (Ultrasonic sensor GND)
D_REAR_R_C
m
Displays the detection distance of the corner ultrasonic sensor (RH).
•  F (Corner ultrasonic sensor GND)
•  G (Ultrasonic sensor)
PRHB_BATT*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to power supply voltage
U (Power supply (IG1))
PRHB_DTC*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to DTC detection
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_FACTORY
Note
•  Displays in the M-MDS but it does not operate.
PRHB_PCM*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to PCM malfunction
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_SCBS*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to laser sensor malfunction
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_SCBS_SW*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to the personalization feature setting
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_SLOPE*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to road slope
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_STEER*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to steering angle
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_TEMP*2
No/Yes
•  No: Smart city brake support [reverse] (SCBS R) is not inhibited
•  Yes: Smart city brake support [reverse] (SCBS R) is inhibited due to ambient temperature
•  AA (CAN_H)
•  AB (CAN_L)
PRHB_TOWBAR
Note
•  Displays in the M-MDS but it does not operate.
PRHB_TRAIL
Note
•  Displays in the M-MDS but it does not operate.
PSM_OFF_SW
Off/On
•  Off: Parking sensor switch is off
•  On: Parking sensor switch is on
V (Parking sensor switch)
REVERSE_LMP
Off/On
•  Off: Back-up light turns off
•  On: Back-up light turns on
•  AA (CAN_H)
•  AB (CAN_L)

*1  :With front parking sensor buzzer
*2  :With smart city brake support [reverse] (SCBS R)