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).

×: Applicable
—: Not applicable

DTC No.

Warning/indicator light

Description

Fail-safe function

Drive cycle

Self test type*1

Memory function

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*2
Communication error with TCM
C, D
×
U0104:00*3
Illuminate/Flash
Communication error with radar unit
C, D
×
U0121:00
Illuminated/Flash
Communication error with ABS HU/CM or DSC HU/CM
C, D
×
U0128:00
Illuminated/Flash
Communication error with electric parking brake control module
C, D
×
U0131:00
Illuminated/Flash
Communication error with EPS control module
C, D
×
U0140:00
Illuminated/Flash
Communication error with front body control module (FBCM)
C, D
×
U0142:00
Communication error with rear body control module (RBCM)
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
×
U0159:00
Illuminated/Flash
Communication error with parking assist unit
C, D
×
U0182:00*5
Illuminated/Flash
Communication error with AFS control module or adaptive LED headlights control module or auto leveling control module
C, D
×
U0214:00
Illuminated/Flash
Communication error with start stop unit
C, D
×
U0232:00*6
Illuminated/Flash
Communication error with BSM control module (LH)
C, D
×
U0235:00*7
Communication error with forward sensing camera (FSC)
×
C, D
×
U023A:00*7
Illuminated/Flash
Communication error with forward sensing camera (FSC)
C, D
×
U0300:00
Instrument cluster configuration error
C, D
×
U0401:68
Illuminated/Flash
Error signal received from PCM
C, D
×
U0402:68*2
Error signal received from transmission/transaxle
C, D
×
U0422:68
Illuminated/Flash
Error signal received from front body control module (FBCM)
C, D
×
U0515:68
Illuminated/Flash
Error signal received from start stop unit
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*8
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
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  :ATX
*3  :With mazda radar cruise control (MRCC) system
*4  :With center display
*5  :With AFS
*6  :With rear vehicle monitoring system or with blind spot monitoring (BSM) system
*7  :With forward sensing camera (FSC)
*8  :With drive selection switch

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

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*1
Communication error with TCM
•  Instrument cluster cannot receive the CAN signal from the TCM for 1 s or more.
U0104:00*2
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 ABS HU/CM or DSC HU/CM
•  Instrument cluster cannot receive the CAN signal from the ABS HU/CM or DSC HU/CM for 1 s or more.
U0128:00
Communication error with electric parking brake control module
•  Instrument cluster cannot receive the CAN signal from the electric parking brake control module 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 front body control module (FBCM)
•  Instrument cluster cannot receive the CAN signal from the front body control module (FBCM) for 5 s or more.
U0142:00
Communication error with rear body control module (RBCM)
•  Instrument cluster cannot receive the CAN signal from the rear body control module (RBCM) 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*3
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.
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.
U0182:00*4
Communication error with AFS control module or adaptive LED headlights control module or auto leveling control module
•  Instrument cluster cannot receive the CAN signal from the AFS control module for 5 s or more.
•  Instrument cluster cannot receive the CAN signal from the adaptive LED headlights control module for 5 s or more.
•  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*5
Communication error with BSM control module (LH)
•  Instrument cluster cannot receive the CAN signal from the BSM control module (LH) for 5 s or more.
U0235:00*6
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.
U023A:00*6
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.
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*1
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).
U0422:68
Error signal received from front body control module (FBCM)
•  Instrument cluster receives the error signals from the front body control module (FBCM) for 5 s or more with the ignition switched ON (engine off or on).
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).
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 configuration error detected as follows:
―  No configuration of instrument cluster
―  Instrument cluster configuration has not been correctly performed.
U2105:02*7
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 10 V is detected.

*1  :ATX
*2  :With mazda radar cruise control (MRCC) system
*3  :With center display
*4  :With AFS
*5  :With rear vehicle monitoring system or with blind spot monitoring (BSM) system
*6  :With forward sensing camera (FSC)
*7  :With drive selection switch


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

•  The PID/data monitor function performs reading in real time of optionally selected input/output signal monitor items that are set in the instrument cluster.

—: Not applicable

PID

Unit/Operation

Data contents

Module control terminal

AFS_ST*1
Off/On
•  Off: AFS not operated
•  On: AFS operated
B, D (CAN)
AT_MAN_M_SW*2
Off/On/Unknown
•  Off: M position switch is off.
•  On: M position switch is on.
•  Unknown: M position switch signal is not determined.
H (M position switch signal)
AT_S_DWN_SW*2
Off/On/Unknown
•  Off: Down switch is off.
•  On: Down switch is on.
•  Unknown: Down switch signal is not determined.
G (Down switch signal)
AT_S_UP_SW*2
Off/On/Unknown
•  Off: Up switch is off.
•  On: Up switch is on.
•  Unknown: Up switch signal is not determined.
F (UP switch signal)
BSM/RVM_SW*3
Off/On
•  Off: BSM OFF switch is off.
•  On: BSM OFF switch is on.
T, V (BSM OFF switch operation signal)
DSC_OFF_SW*4
Off/On
•  Off: DSC OFF switch is off.
•  On: DSC OFF switch is on.
T, V (DSC OFF switch operation signal)
FUEL_GAUGE
L
Displays fuel level detected by the fuel gauge
FUEL_SEN_M
ohm*9/V*10
Fuel gauge sender unit connector 4-pin type
•  Displays fuel gauge sender unit resistance value
Fuel gauge sender unit connector 5-pin type
•  Displays fuel gauge sender unit voltage value
FUEL_SEN_S
ohm*9/V*10
Note
•  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.
B, D (CAN)
I-ST_OFF_SW*5
Off/On
•  Off: i-stop OFF switch is off.
•  On: i-stop OFF switch is on.
T, V (i-stop OFF switch operation signal)
LDWS_ON_SW*6
Off/On
•  Off: LDWS switch is off.
•  On: LDWS switch is on.
T, V (LDWS switch operation signal)
MULTI_SW_ST
O.K./FAULT
•  O.K.: Cluster switch is normal.
•  FAULT: Cluster switch is malfunctioning.
T, V (Cluster switch operation signal)
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
X (Parking brake switch signal)
R_GEAR_SW
Off/On
ATX
•  Displays in the M-MDS but it does not operate.
MTX
•  Off: Back-up light switch is off.
•  On: Back-up light switch is on.
B, D (CAN)
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
B, D (CAN)
SPEEDOMTR
KPH, MPH
Displays vehicle speed (100 %=300 km/h {186 mph})
TACHOMTR*7
RPM
Displays engine speed (100 %=10,000 rpm)
TOTAL_TIME
hh:mm:ss
Displays cumulative elapsed time since vehicle completion
TPMS_CAL_SW*8
Off/On
•  Off: Tire pressure monitoring system (TPMS) set switch is off.
•  On: Tire pressure monitoring system (TPMS) set switch is on.
T, V (Tire pressure monitoring system (TPMS) set switch status signal)
VPWR
V
Displays power supply voltage
S, U (Power supply)

*1  :With AFS
*2  :ATX
*3  :With blind spot monitoring (BSM) system
*4  :With DSC
*5  :With i-stop system
*6  :With lane departure warning system (LDWS)
*7  :Type A or type B or type C instrument cluster only
*8  :With tire pressure monitoring system (TPMS)
*9  :Fuel gauge sender unit connector 4-pin type
*10  :Fuel gauge sender unit connector 5-pin type

Active Command Modes Function

•  The active command modes are shown below.

Simulation item

Unit/Operation

Data contents

Output part name

ALARM
On/Off
•  On: Warning alarm sounds.
•  Off: Warning alarm does not sound.
Warning alarm (instrument cluster)
LCD_SEG
Off/On
Type A or type C or type D instrument cluster
•  Off: Turns off the LCD.
•  On: Fully displays LCD.
Type B instrument cluster
•  Off: Turns off the LCD.
•  On: Illuminates the LCD.
LCD
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)
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)
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)

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