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ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER]

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

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

×

U0121:00

Illuminated/Flash

Communication error with DSC HU/CM

—

—

C, D

×

U012B:00

—

Communication error with EVP (electric vacuum pump) control unit

—

—

C, D

—

U0131:00

Illuminated/Flash

Communication error with electric power steering (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*3

Illuminated/Flash

Communication error with connectivity master unit (CMU)

—

—

C, D

×

U0182:00*4

Illuminated/Flash

Communication error with auto leveling control module or adaptive front lighting system (AFS) control module

—

—

C, D

×

U0214:00

Illuminated/Flash

Communication error with start stop unit

—

—

C, D

×

U0232:00*5

Illuminated/Flash

Communication error with blind spot monitoring (BSM) control module (LH)

—

—

C, D

×

U023A:00*6

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 TCM

—

—

C, D

×

U0422:68

Illuminated/Flash

Error signal received from BCM

—

—

C, D

×

U0515:68

Illuminated/Flash

Error signal received from start stop unit

—

—

C, D

×

U0533:68*5

—

Error signal received from blind spot monitoring (BSM) control module (LH)

—

—

C, D

—

U053B:00*6

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*2

—

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
AT
*3
With center display
*4
With adaptive front lighting system (AFS) control module
*5
With blind spot monitoring (BSM) system
*6
With forward sensing camera (FSC)
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 two digits (two digits after hyphen (-)) after the 7-digit DTC.

  • 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

Communication error with TCM

  • Instrument cluster cannot receive the CAN signal from the TCM 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.

U012B:00

Communication error with EVP (electric vacuum pump) control unit

  • Instrument cluster cannot receive the CAN signal from the EVP (electric vacuum pump) control unit 1 s or more.

U0131:00

Communication error with electric power steering (EPS) control module

  • Instrument cluster cannot receive the CAN signal from the electric power steering (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.

U0182:00

Communication error with auto leveling control module or adaptive front lighting system (AFS) control module

  • Instrument cluster cannot receive the CAN signal from the auto leveling control module or adaptive front lighting system (AFS) 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.

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).

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.

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 TCM

  • Instrument cluster received the error signals from the TCM 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).

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).

U0533:68

Error signal received from blind spot monitoring (BSM) control module (LH)

  • Instrument cluster receives the error signals from the blind spot monitoring (BSM) control module (LH) for 5 s or more 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 configuration error detected as follows:

    • 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 10 V 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 Mazda Modular Diagnostic System (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 Mazda Modular Diagnostic System (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 Mazda Modular Diagnostic System (M-MDS).

—

RPM_STATUS

Engine Stop/Under1500rpm/Over1500rpm/FAIL

Engine speed status

When DTC is detected, instrument cluster displays engine speed in Mazda Modular Diagnostic System (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 Mazda Modular Diagnostic System (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.

  • Verify the odometer value in the instrument cluster.

  • Verify the snapshot data item TOTAL_DIST.

  • 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.

  • Verify the instrument cluster PID item TOTAL_TIME.

  • Verify the snapshot data item TOTAL_TIME.

  • 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 Mazda Modular Diagnostic System (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

NOTE:

Displayed on Mazda Modular Diagnostic System (M-MDS) but does not function.

AT_MAN_M_SW*1

Off/On/Reserved/ Unknown

  • Off: Selector lever is not in M position.

  • On: Selector lever is in M position.

  • Reserved: —

  • Unknown: M position switch signal is not determined.

H

AT_S_DWN_SW*1

Off/On/Reserved/ Unknown

  • Off: Selector lever is not in shift-down position (-).

  • On: Selector lever is in shift-down position (-).

  • Reserved: —

  • Unknown: Down switch signal is not determined.

G

AT_S_UP_SW*1

Off/On/Reserved/ Unknown

  • Off: Selector lever is not in shift-up position (+).

  • On: Selector lever is in shift-up position (+).

  • Reserved: —

  • Unknown: Up switch signal is not determined.

F

BSM/RVM_SW*2

Off/On

  • Off: Blind spot monitoring (BSM) OFF switch is off.

  • On: Blind spot monitoring (BSM) OFF switch is on.

V

DSC_OFF_SW

Off/On

  • Off: DSC OFF switch is off.

  • On: DSC OFF switch is on.

V

FUEL_GAUGE

L

Displays fuel level detected by the fuel gauge

—

FUEL_SEN_M

ohm

Displays fuel gauge sender unit (main) resistance valve.

—

V

NOTE:

Displayed on Mazda Modular Diagnostic System (M-MDS) but does not function.

FUEL_SEN_S

ohm

NOTE:

Displayed on Mazda Modular Diagnostic System (M-MDS) but does not function.

V

NOTE:

Displayed on Mazda Modular Diagnostic System (M-MDS) but does not function.

I_ILLUMI_M

Off (Day)/On (Night)

  • Off (Day): TNS (parking lights) switch is off.

  • On (Night): TNS (parking lights) switch is on.

B, D

I-ST_OFF_SW

Off/On

NOTE:

Displayed on Mazda Modular Diagnostic System (M-MDS) but does not function.

LDWS_ON_SW*3

Off/On

  • Off: LDWS switch is off.

  • On: LDWS switch is on.

V

MULTI_SW_ST

O.K./FAULT

  • O.K.: Cluster switch is normal.

  • FAULT: Cluster switch is malfunctioning.

V

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

R_GEAR_SW*4

Off/On

  • Off: Back-up light switch is off.

  • On: Back-up light switch is on.

B, D

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

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*5

Off/On

  • Off: Tire pressure monitoring system (TPMS) set switch is off.

  • On: Tire pressure monitoring system (TPMS) set switch is on.

V

VPWR

V

Displays power supply voltage

S, U
*1
AT
*2
With blind spot monitoring (BSM) system
*3
With lane departure warning system (LDWS)
*4
MT
*5
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: Buzzer sounds.

  • Off: Buzzer does not sound.

Buzzer (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)

  • Indicator unit

Ignition switched ON (engine off or on)

SPEEDOMTR

Off/60 Km/h/120 Km/h

  • Off: Speedometer needle moves to the bottommost position.

  • 60 Km/h: Speedometer needle moves to approx. 57—63 km/h {38—42 mph}.

  • 120 Km/h: Speedometer needle moves to approx. 116—124 km/h {75—81 mph}.

Speedometer (instrument cluster)

Ignition switched ON (engine off or on)

TACHOMTR

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)
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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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