ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER]


id092200021843


Outline

•  The on-board diagnostic function consists of the following functions:
―  A malfunction detection function, which detects overall malfunctions in the instrument cluster-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 instrument cluster 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

B1B71:14*14
Evaporator temperature sensor circuit malfunction
C, D
×
C1132:41*2
Malfunction inside instrument cluster
C, D
×
U0001:88
Module communication error (HS-CAN)
C, D
×
U0010:88
Module communication error (MS-CAN)
C, D
×
U0100:00
Illuminated/Flash
Communication error with PCM
C, D
×
U0101:00*3
Communication error with TCM
C, D
×
U0104:00*8
Communication error with radar unit
C, D
×
U0121:00
Illuminated/Flash
Communication error with DSC HU/CM
C, D
×
U0131:00
Illuminated/Flash
Communication error with EPS control module
C, D
×
U0140:00
Illuminated/Flash
Communication error with BCM
C, D
×
U0151:00
Illuminated/Flash
Communication error with SAS control module
C, D
×
U0156:00*4
Illuminated/Flash
Communication error with connectivity master unit (CMU)
C, D
×
U0158:00*13
Communication error with active driving display
C, D
×
U0159:00*5
Illuminated/Flash
Communication error with parking assist unit
C, D
×
U0164:00*9
Communication error with climate control unit
C, D
×
U0182:00*6
Illuminated/Flash
Communication error with auto leveling control module
C, D
×
U0214:00
Illuminated/Flash
Communication error with start stop unit
C, D
×
U0232:00*10
Illuminated/Flash
Communication error with blind spot monitoring (BSM) control module (LH)
C, D
×
U0235:00*11
Communication error with laser sensor
×
C, D
×
U023A:00*12
Illuminated/Flash
Communication error with forward sensing camera (FSC)
C, D
×
U0298:00
Communication error with DC-DC converter (i-ELOOP)
C, D
×
U0300:00*2
Instrument cluster configuration error
C, D
×
U0401:68
Illuminated/Flash
Error signal received from PCM
C, D
×
U0402:68*3
Error signal received from transmission/transaxle
C, D
×
U0405:00*8
Error signal received from radar unit
C, D
×
U0422:68
Illuminated/Flash
Error signal received from BCM
C, D
×
U0433:00*11
Error signal received from laser sensor
C, D
×
U0515:68
Illuminated/Flash
Error signal received from start stop unit
C, D
×
U053B:00*12
Illuminated/Flash
Error signal received from forward sensing camera (FSC)
C, D
×
U2005:86
Error signal received from PCM
C, D
×
U2013:13
Cluster switch circuit malfunction
C, D
×
U2100:00
Instrument cluster configuration error
C, D
×
U2105:02*7
Drive selection switch circuit malfunction
C, D
×
U2300:41
Instrument cluster configuration error
C, D
×
U2300:51
Instrument cluster configuration error
C, D
×
U2300:56
Instrument cluster configuration error
C, D
×
U2300:57
Instrument cluster configuration error
C, D
×
U3000:41*2
Instrument cluster internal malfunction
C, D
×
U3003:16
Low power supply voltage input to instrument cluster
C, D
×

*1  :C: CMDTC self test, D: ODDTC self test
*2  :With digital speedometer
*3  :ATX
*4  :With center display
*5  :With parking sensor system
*6  :With headlight auto leveling system
*7  :With drive selection switch
*8  :With mazda radar cruise control (MRCC) system
*9  :With digital speedometer and full-auto air conditioner system
*10  :With blind spot monitoring (BSM) system
*11  :With smart city brake support (SCBS)
*12  :With forward sensing camera (FSC)
*13  :With active driving display
*14  :With manual air conditioner system

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

B1B71:14
Evaporator temperature sensor circuit malfunction
•  The instrument cluster detected an open circuit or a short to ground in the evaporator temperature sensor circuit for 0.1 s or more with the ignition switched ON (engine off or on).
C1132:41
Malfunction inside instrument cluster
•  The instrument cluster detects that there is an active driving display malfunction in the instrument cluster.
U0001:88
Module communication error (HS-CAN)
•  Instrument cluster detects a CAN bus communication line (HS-CAN) malfunction.
U0010:88
Module communication error (MS-CAN)
•  Instrument cluster detects a CAN bus communication line (MS-CAN) malfunction.
U0100:00
Communication error with PCM
•  Instrument cluster cannot receive the CAN signal from the PCM.
U0101:00
Communication error with TCM
•  Instrument cluster cannot receive the CAN signal from the TCM for 1 s or more.
U0104:00
Communication error with radar unit
•  Instrument cluster cannot receive the CAN signal from the radar unit for 1 s or more.
U0121:00
Communication error with DSC HU/CM
•  Instrument cluster cannot receive the CAN signal from the DSC HU/CM for 1 s or more.
U0131:00
Communication error with EPS control module
•  Instrument cluster cannot receive the CAN signal from the EPS control module for 1 s or more.
U0140:00
Communication error with BCM
•  Instrument cluster cannot receive the CAN signal from the BCM for 5 s or more.
U0151:00
Communication error with SAS control module
•  Instrument cluster cannot receive the CAN signal from the SAS control module for 2 s or more.
U0156:00
Communication error with connectivity master unit (CMU)
•  Instrument cluster cannot receive the CAN signal from the connectivity master unit (CMU) for 5 s or more.
U0158:00
Communication error with active driving display
•  Instrument cluster cannot receive the CAN signal from the active driving display for 5 s or more.
U0159:00
Communication error with parking assist unit
•  Instrument cluster cannot receive the CAN signal from the parking assist unit for 5 s or more.
U0164:00
Communication error with climate control unit
•  Instrument cluster cannot receive the CAN signal from the climate control unit for 5 s or more.
U0182:00
Communication error with auto leveling control module
•  Instrument cluster cannot receive the CAN signal from the auto leveling control module for 5 s or more.
U0214:00
Communication error with start stop unit
•  Instrument cluster cannot receive the CAN signal from the start stop unit for 5 s or more.
U0232:00
Communication error with blind spot monitoring (BSM) control module (LH)
•  Instrument cluster cannot receive the CAN signal from the blind spot monitoring (BSM) control module (LH) for 5 s or more.
U0235:00
Communication error with laser sensor
•  Instrument cluster cannot receive the CAN signal from the forward sensing camera (FSC) for 1 s or more.
U023A:00
Communication error with forward sensing camera (FSC)
•  Instrument cluster cannot receive the CAN signal from the forward sensing camera (FSC) for 1 s or more.
U0298:00
Communication error with DC-DC converter (i-ELOOP)
•  Instrument cluster cannot receive the CAN signal from the DC-DC converter (i-ELOOP) for 5 s or more.
U0300:00
Instrument cluster configuration error
•  Instrument cluster configuration error (incorrect value write) detected.
U0401:68
Error signal received from PCM
•  Instrument cluster receives the error signals from the PCM with the ignition switched ON (engine off or on).
U0402:68
Error signal received from transmission/transaxle
•  Instrument cluster received the error signals from the transmission/transaxle for 1 s or more with the ignition switched ON (engine off or on).
U0405:00
Error signal received from radar unit
•  Instrument cluster receives error signals from the radar unit for 1 s or more with the ignition switched ON (engine off or on).
U0422:68
Error signal received from BCM
•  Instrument cluster receives the error signals from the BCM for 5 s or more with the ignition switched ON (engine off or on).
U0433:00
Error signal received from laser sensor
•  Instrument cluster detects the following conditions:
―  Malfunction of laser sensor or smart city brake support related system (laser sensor, DSC HU/CM, PCM).
―  Laser sensor control is temporarily inhibited.
U0515:68
Error signal received from start stop unit
•  Instrument cluster receives the error signals from the start stop unit with the ignition switched ON (engine off or on).
U053B:00
Error signal received from forward sensing camera (FSC)
•  Instrument cluster receives the error signals from the forward sensing camera (FSC) for 1 s or more with the ignition switched ON (engine off or on).
U2005:86
Error signal received from PCM
•  Instrument cluster receives the vehicle speed signal error from the PCM for 1 s or more with the ignition switched ON (engine off or on).
U2013:13
Cluster switch circuit malfunction
•  Instrument cluster detects an open circuit in the cluster switch circuit for 5 s or more with the ignition switched ON (engine off or on).
U2100:00
Instrument cluster configuration error
•  Instrument cluster detects the following conditions:
―  No configuration of instrument cluster
―  Instrument cluster configuration has not been correctly performed.
U2105:02
Drive selection switch circuit malfunction
•  Instrument cluster detects an open circuit in the drive selection switch circuit for 5 s or more with the ignition switched ON (engine off or on).
U2300:41
Instrument cluster configuration error
•  Instrument cluster configuration error (data error) detected.
U2300:51
Instrument cluster configuration error
•  Instrument cluster configuration error (no configuration) detected.
U2300:56
Instrument cluster configuration error
•  Instrument cluster configuration error (incorrect value write) detected.
U2300:57
Instrument cluster configuration error
•  Instrument cluster configuration error (data size error) detected.
U3000:41
Instrument cluster internal malfunction
•  Instrument cluster detects the internal malfunction.
U3003:16
Low power supply voltage input to instrument cluster
•  Instrument cluster power supply circuit voltage of less than 10V is detected.


Snapshot Data

•  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
APP_STATUS
Accelerator Pedal Off/Under20%/Over20%/FAIL
Accelerator pedal position status
CFG_STATUS
Config Complete/Not Configured/Config Error
Instrument cluster configuration status
ECT_STATUS
Under 0 degrees C/0 - Under 80 degrees C/Over 80 degrees C/FAIL
Engine coolant temperature status
IC_VPWR
V
Instrument cluster power supply voltage
When DTC is detected, instrument cluster displays power supply voltage value of instrument cluster in M-MDS.
VPWR
IG-ON_TIMER
hh:mm:ss*1
Elapsed time since ignition was switched ON (engine off or on)
Note
•  The instrument cluster records the elapsed time since the ignition was switched ON (engine off or on).
When DTC is detected, instrument cluster displays elapsed time since ignition was switched ON (engine off or on) in M-MDS.
PWR_MODE_KEY
Key Out/Key Recently Out (Position 0)/Accessory (Position 1)/Post Ignition (Position 2)/Ignition On (Position 2)/Running (Position 2)/Running - Starting
•  Key Out: Ignition switched off
•  Key Recently Out (Position 0): Elapsed time within 3 s since ignition was switched off
•  Accessory (Position 1): Ignition is switched to ACC
•  Post Ignition (Position 2): Elapsed time within 3 s since ignition was switched ON (engine off or on)
•  Ignition On (Position 2): Ignition switched ON (engine off)
•  Running (Position 2): Ignition switched ON (engine on)
•  Running - Starting: Cranking condition
When DTC is detected, instrument cluster displays ignition switch status in M-MDS.
RPM_STATUS
Engine Stop/Under1500rpm/Over1500rpm/FAIL
Engine speed status
When DTC is detected, instrument cluster displays engine speed in M-MDS.
TACHOMTR
SHIFT_STATUS
P/N/D/R/FAIL
Selector lever position status
When DTC is detected, instrument cluster displays selector lever position in M-MDS.
TOTAL_DIST
km
Miles
Accumulated total traveled distance from completion of vehicle until instrument cluster detects DTC (Odometer value in instrument cluster)
The total traveled distance from which the instrument cluster 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*1
Accumulated total elapsed time since vehicle completion until instrument cluster 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 instrument cluster 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
VPWR
V
Instrument cluster power supply voltage
VPWR
VSPD_STATUS
Stop/0-10km/h/Over10km/h/FAIL
Vehicle speed status
When DTC is detected, instrument cluster displays vehicle speed in M-MDS.
SPEEDOMTR

*1  :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 instrument cluster can be selected and read out in real-time.
•  The items which can be selected are as follows.

—: Not applicable

PID

Unit/Operation

Data contents

Module control terminal

AFS_ST
Off/On
Displays in the M-MDS but it does not operate.
AT_MAN_M_SW*1
Off/On/Reserved/ Unknown
•  Off: M position switch is off.
•  On: M position switch is on.
•  Reserved: —
•  Unknown: M position switch signal is not determined.
1H
AT_S_DWN_SW*1
Off/On/Reserved/ Unknown
•  Off: Down switch is off.
•  On: Down switch is on.
•  Reserved: —
•  Unknown: Down switch signal is not determined.
1G
AT_S_UP_SW*1
Off/On/Reserved/ Unknown
•  Off: Up switch is off.
•  On: Up switch is on.
•  Reserved: —
•  Unknown: Up switch signal is not determined.
1F
BSM/RVM_SW*2
Off/On
•  Off: Blind spot monitoring (BSM) OFF switch is off.
•  On: Blind spot monitoring (BSM) OFF switch is on.
1A, 1V
DSC_OFF_SW
Off/On
•  Off: DSC OFF switch is off.
•  On: DSC OFF switch is on.
1A, 1V
FUEL_GAUGE
L
Displays fuel level detected by the fuel gauge
FUEL_SEN_M
ohm
Displays fuel gauge sender unit resistance valve.
V
Displays in the M-MDS but it does not operate.
FUEL_SEN_S
ohm
Displays in the M-MDS but it does not operate.
V
Displays in the M-MDS but it does not operate.
I_ILLUMI_M
Off (Day)/On (Night)
•  Off (Day): TNS switch is off.
•  On (Night): TNS switch is on.
1B, 1D
I-ST_OFF_SW
Off/On
•  Off: i-stop OFF switch is off.
•  On: i-stop OFF switch is on.
1A, 1V
LDWS_ON_SW*3
Off/On
•  Off: LDWS switch is off.
•  On: LDWS switch is on.
1A, 1V
MULTI_SW_ST
O.K./FAULT
•  O.K.: Cluster switch is normal.
•  FAULT: Cluster switch is malfunctioning.
1A, 1V
ODO_CNT
km, ft, mi
Displays rolling count of the odometer
P_BRAKE_SW
Off/On
•  Off: Parking brake not applied
•  On: Parking brake applied
1X
R_GEAR_SW
Off/On
•  Off: Selector lever is in other than R position.
•  On: Selector lever is in R position.
1B, 1D
R_LMP
Off/On/Unknown/Fault
•  Off: Back-up light is turned off.
•  On: Back-up light is turned on.
•  Unknown: Back-up light signal is not determined.
•  Fault: Back-up light malfunction
1B, 1D
SPEEDOMTR
KPH, MPH
Displays vehicle speed
TACHOMTR
RPM
Displays engine speed
TOTAL_TIME
hh:mm:ss
Displays cumulative elapsed time since vehicle completion
TPMS_CAL_SW*4
Off/On
•  Off: Tire pressure monitoring system (TPMS) set switch is off.
•  On: Tire pressure monitoring system (TPMS) set switch is on.
1A, 1V
VPWR
V
Displays power supply voltage
1S, 1U

*1  :ATX
*2  :With blind spot monitoring (BSM) system
*3  :With lane departure warning system (LDWS)
*4  :With tire pressure monitoring system (TPMS)

Simulation function

•  The simulation function drives the output parts set in the instrument cluster regardless of the instrument cluster 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

ALARM
On/Off
•  On: Warning alarm sounds.
•  Off: Warning alarm does not sound.
Warning alarm (instrument cluster)
Ignition switched ON (engine off or on)
LCD_SEG
Off/On
•  Off: Turns off the LCD.
•  On: Fully displays LCD.
LCD (instrument cluster)
Ignition switched ON (engine off or on)
SPEEDOMTR*1
Off/60 Km/h/120 Km/h
•  Off: Speedometer needle moves to the bottommost position.
•  60 Km/h: Speedometer needle moves to approx. 61—67 km/h {38—42 mph}.
•  120 Km/h: Speedometer needle moves to approx. 122—130 km/h {75—81 mph}.
Speedometer (instrument cluster)
Ignition switched ON (engine off or on)
TACHOMTR*2
Off/3000 RPM/6000 RPM
•  Off: Tachometer needle moves to bottommost position.
•  3000 RPM: Tachometer needle moves to approx. 3,050 rpm.
•  6000 RPM: Tachometer needle moves to approx. 6,100 rpm.
Tachometer (instrument cluster)
Ignition switched ON (engine off or on)
WL+IL
Off/On
•  Off: Turns off all warning lights, indicator lights.
•  On: Illuminates all warning lights, indicator lights.
Warning lights, indicator lights (instrument cluster)
Ignition switched ON (engine off or on)

*1  :Analog speedometer type
*2  :Analog tachometer type