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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5
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PID/DATA MONITOR TABLE [BCM]

NOTE:

  • The "Type" in the PID/data monitor table is indicated as follows.

    • Input: Value input to module

    • Conversion: Value converted into value input to module

    • Calculation: Value calculated for several input values in module

    • Output: Value output by module

—: Not applicable

Item

Unit

Type

Content

Operation status (reference)

Terminal

ABK_HD_CS_R

Off/On

If an accessory part is installed, it cannot be used.

ABK_HN_CS_R

Off/On

If an accessory part is installed, it cannot be used.

BG_HORN_RLY

Off/On

If an accessory part is installed, it cannot be used.

BLWR_RLY

Off/On

Output

Displays the blower relay operation status.

  • Off: Blower relay is off (ignition is switched off)

  • On: Blower relay is on (ignition is switched ON)

3E

BRAKE_SW

Off/On

NOTE:

Displayed on M-MDS but does not function.

BRK_F_L_SW

Off(Normal)/On(Low)

Conversion

Displays the brake fluid level status.

  • Off (Normal): Brake fluid level is between MAX and MIN

  • On (Low): Brake fluid level is lower than MIN

3R

C_DL_SW_LK

Off/On

Conversion

Displays the door lock switch operation status (lock operation).

  • Off: Door lock switch is not in lock

  • On: Door lock switch is in lock

2K

C_DL_SW_UNL

Off/On

Conversion

Displays the door lock switch operation status (unlock operation).

  • Off: Door lock switch is not in unlock

  • On: Door lock switch is in unlock

2K

DOOR_ALL

Close/OPEN

Conversion

Displays all the doors open/closed condition.

  • Close: All doors are closed

  • OPEN: Any door is open

2H/2G

DOOR_D

Close/OPEN

Conversion

Displays the door (LH) open/closed condition.

  • Close: Door (LH) is closed

  • OPEN: Door (LH) is open

2H

DOOR_P

Close/OPEN

Conversion

Displays the door (RH) open/closed condition.

  • Close: Door (RH) is closed

  • OPEN: Door (RH) is open

2G

DR_LK_RY

Off/On

Output

Displays the door lock relay operation request (lock signal) send status. The BCM sends a lock signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Lock signal is not sent (lock operation is not operated)

  • On: Lock signal is sent (lock operation is operated)

2Y

DR_UNLK_RY

Off/On

Output

Displays the door unlock relay operation request (unlock signal) send status. The BCM sends an unlock signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Unlock signal is not sent (unlock operation is not operated)

  • On: Unlock signal is sent (unlock operation is performed)

2Y

F_FOG_RELAY

Off/On

NOTE:

Displayed on M-MDS but does not function.

F_FOG_SW

Off/On

NOTE:

Displayed on M-MDS but does not function.

FUEL_SEN_HM

V

NOTE:

Displayed on M-MDS but does not function.

FUEL_SEN_HS

V

NOTE:

Displayed on M-MDS but does not function.

FUEL_SEN_HV

V

NOTE:

Displayed on M-MDS but does not function.

FUEL_SEN_M

V

Input

Displays the fuel gauge sender unit input voltage. If the fuel tank level is low, the BCM input voltage increases because the fuel gauge sender unit resistance increases.

Displays the fuel gauge sender unit voltage.

2Q

FUEL_SEN_S

V

NOTE:

Displayed on M-MDS but does not function.

FUEL_SEN_V

V

Input

Displays the fuel gauge sender unit supply voltage.

Ignition switched ON (engine off): Approx. 4.15 V

1A/1B

H/L_CLN_RY

Off/On

NOTE:

Displayed on M-MDS but does not function.

H/L_CS_RLS

Off/On

Conversion

Displays the headlight LO on request signal reception status. The BCM receives a headlight LO on request signal via LIN communication from the auto-light sensor/rain sensor.

NOTE:

  • When the auto-light sensor/rain sensor detects the average 2,000 lux or less per 1 min for upward illumination, it sends a headlight LO on request signal to the BCM.

  • Off: Headlight LO on request signal is not received

  • On: Headlight LO on request signal is received

3X

H/L_DRL

Off/On

Output

Displays the running light on request signal send status. The BCM sends a running light on request signal to the electrical supply unit (ESU) via LIN communication.

NOTE:

  • For the specific operation condition of the PID "H/L_DRL", refer to the "DAYTIME RUNNING LIGHT (DRL) SYSTEM" for new vehicle instruction.

  • Off: Running light on request signal is not sent

  • On: Running light on request signal is sent

2Y

H/L_HI

%

Output

Displays the headlight HI on request signal send status. The BCM sends a headlight HI on request signal to the electrical supply unit (ESU) via LIN communication.

  • Headlight HI on request signal is not sent (headlight high beam turns off): 0 %

  • Headlight HI on request signal is sent (headlight high beam turns on): 100 %

2Y

H/L_LOW

%

Output

Displays the headlight LO on request signal send status. The BCM sends a headlight LO on request signal to the electrical supply unit (ESU) via LIN communication.

  • Headlight LO on request signal is not sent (headlight low beam turns off): 0 %

  • Headlight LO on request signal is sent (headlight low beam turns on): 100 %

2Y

H/L_PASS

Off/On

Output

Displays the headlight LO and HI on request signal send status. The BCM sends a headlight LO and HI on request signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Headlight LO and HI on request signal is not sent (no passing)

  • On: Headlight LO and HI on request signal is sent (passing)

2Y

H/L_SW_HI

Off/On

Conversion

Displays the light switch (HI position) operation status. The BCM receives a light switch (HI position) input signal via CAN communication from the start stop unit.

  • Off: Light switch (HI position) OFF signal is received

  • On: Light switch (HI position) ON signal is received

2C/2D

H/L_SW_LOW

Off/On

Conversion

Displays the light switch (LO position) operation status. The BCM receives a light switch (LO position) input signal via CAN communication from the start stop unit.

  • Off: Light switch (LO position) off signal is received

  • On: Light switch (LO position) on signal is received

2C/2D

H/L_SW_OFF

Off/On

Conversion

Displays the light switch (OFF position) operation status. The BCM receives a light switch (OFF position) input signal via CAN communication from the start stop unit.

  • Off: Light switch (OFF position) off signal is received

  • On: Light switch (OFF position) on signal is received

2C/2D

H/L_SW_PASS

Off/On

Conversion

Displays the light switch (passing position) operation status. The BCM receives a light switch (passing position) input signal via CAN communication from the start stop unit.

  • Off: Light switch (passing position) off signal is received

  • On: Light switch (passing position) on signal is received

2C/2D

H/L_SW_TNS

Off/On

Conversion

Displays the light switch (TNS (parking lights) position) operation status. The BCM receives a light switch (TNS (parking lights) position) input signal via CAN communication from the start stop unit.

  • Off: Light switch (TNS (parking lights) position) off signal is received

  • On: Light switch (TNS (parking lights) position) on signal is received

2C/2D

H/L_TNS

Off/Right-On/Left-On/On

Output

Displays the TNS (parking lights) on request signal send status. The BCM sends a TNS (parking lights) on request signal to the electrical supply unit (ESU) via LIN communication.

  • Off: TNS (parking lights) on request signal is not sent (light switch is in position other than TNS (parking lights))

  • Right-On: Parking light (RH) is forcibly operated using simulation item

  • Left-On: Parking light (LH) is forcibly operated using simulation item

  • On: TNS (parking lights) on request signal is sent (light switch is in TNS (parking lights) position)

2Y

H/L_TNS_RLS

Off/On

Conversion

Displays the TNS (parking lights) on request signal reception status. The BCM receives a TNS (parking lights) on request signal via LIN communication from the auto-light sensor/rain sensor.

NOTE:

  • When the auto-light sensor/rain sensor detects the average 2,000 lux or less per 1 min for upward illumination, it sends a TNS (parking lights) on request signal to the BCM.

  • Off: TNS (parking lights) on request signal is not received

  • On: TNS (parking lights) on request signal is received

3X

H/L_TYPE

Halogen_2Lights/Halogen_4Lights/Lo-HID&Hi-Hlogen_4Lights/LED_4Lights/Bi-Xenon

—

Displays the type of headlight equipped to the vehicle. The BCM sends information concerning the type of headlight to the electrical supply unit (ESU) via LIN communication.

—

2Y

HAZARD_SW

Off/On/Unknown

Conversion

Displays the hazard warning operation status. The BCM receives a hazard warning switch input signal via CAN communication from the start stop unit.

  • Off: Hazard warning switch off signal is received (hazard warning switch is not pressed)

  • On: Hazard warning switch on signal is received (hazard warning switch is pressed)

  • Unknown: Signal which hazard warning switch position is not determined is received

2C/2D

HOOD

Close/OPEN

Conversion

Displays the hood latch switch operation status.

  • Close: Hood latch switch is on (hood is closed)

  • OPEN: Hood latch switch is off (hood is open)

3W

HORN_RLY

Off/On

Output

Displays the horn relay operation status.

  • Off: Horn relay is off (horn switch is not pressed)

  • On: Horn relay is on (horn switch is pressed)

3H

IG1_STATUS

IG-Off/IG-On

Conversion

Displays the IG1 power supply input status determined in the BCM.

  • IG-Off: IG1 power is not input to BCM

  • IG-On: IG1 power is input to BCM

3O

KC_SW_D_LK

Off/On

Conversion

Displays the door key cylinder switch operation status (lock operation).

  • Off: Door key cylinder switch is not in lock (lock operation is not performed using door key cylinder)

  • On: Door key cylinder switch is in lock (lock operation is performed using door key cylinder)

2L

KC_SW_D_UNL

Off/On

Conversion

Displays the door key cylinder switch operation status (unlock operation).

  • Off: Door key cylinder switch is not in unlock (unlock operation is not performed using door key cylinder)

  • On: Door key cylinder switch is in unlock (unlock operation is performed using door key cylinder)

2L

LL_SW_D_LK

Off/On

Conversion

Displays the door lock-link switch (LH) operation status (lock operation).

  • Off: Door lock-link switch (LH) is not in lock (lock operation is not performed using driver's door lock knob)

  • On: Door lock-link switch (LH) is in lock (lock operation is performed using driver's door lock knob)

2A

LL_SW_D_UNL

Off/On

Conversion

Displays the door lock-link switch (LH) operation status (unlock operation).

  • Off: Door lock-link switch (LH) is not in lock (unlock operation is not performed using driver's door lock knob)

  • On: Door lock-link switch (LH) is in unlock (unlock operation is performed using driver's door lock knob)

2B

LL_SW_P/R

Off/On

Conversion

Displays the door lock-link switch (RH) operation status (lock operation).

  • Off: Door lock-link switch (RH) is not in lock (lock operation is not performed using passenger's door lock knob)

  • On: Door lock-link switch (RH) is in lock (lock operation is performed using passenger's door lock knob)

2M

PNC_HD_CS_R

Off/On

If an accessory part is installed, it cannot be used.

PNC_HN_CS_R

Off/On

If an accessory part is installed, it cannot be used.

PTC_HEAT_ST

%

NOTE:

Displayed on M-MDS but does not function.

R_DEF_RLY

Off/On

Output

Displays the rear window defogger relay operation status.

  • Off: Rear window defogger relay is off (rear window defogger switch is not pressed)

  • On: Rear window defogger relay is on (rear window defogger switch is pressed)

3K

R_FOG_LAMP

Off/On

NOTE:

Displayed on M-MDS but does not function.

R_FOG_SW

Off/On

NOTE:

Displayed on M-MDS but does not function.

REVERSE_LMP

Off/On

Output

Displays the back-up light on request signal send status. The BCM sends a back-up light on request signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Back-up light on request signal is not sent (MT: shift lever is not in reverse position, AT: selector lever is not in R position)

  • On: Back-up light on request signal is sent (MT: shift lever is in reverse position, AT: selector lever is in R position)

2Y

ROOM_LAMP

Off/100%_On/60%_On/50%_On/40%_On/30%_On/20%_On

Output

Displays the map light on request signal send status. The BCM sends a map light on request signal to the electrical supply unit (ESU) via LIN communication.

NOTE:

  • For the specific operation condition of the PID "ROOM_LAMP", refer to the "ROOM LIGHT CONTROL SYSTEM" for new vehicle instruction.

  • Off: Map light on request signal is not sent

  • 100%_On: Map light on request signal (100%) is sent

  • 60%_On: Map light on request signal (60%) is sent

  • 50%_On:—

  • 40%_On:—

  • 30%_On:—

  • 20%_On:—

2Y

SEAT_B_2C

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

SEAT_B_2L

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

SEAT_B_2R

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

SEAT_B_3C

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

SEAT_B_3L

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

SEAT_B_3R

Unbuckled/Buckled

NOTE:

Displayed on M-MDS but does not function.

STOP_LAMP_DSC

Unknown/Off/On/Backup_On

NOTE:

Displayed on M-MDS but does not function.

STOP_LMP_CTL

Off/On

NOTE:

Displayed on M-MDS but does not function.

STOP_LMP_IN

Off/On

NOTE:

Displayed on M-MDS but does not function.

TR_UNL_SW

Off/On

Conversion

Displays the trunk lid opener switch operation status.

  • Off: Trunk lid opener switch is off (trunk lid opener switch is not pressed)

  • On: Trunk lid opener switch is on (trunk lid opener switch is pressed)

2S

TR_UNL_SW_IP

Off/On

NOTE:

Displayed on M-MDS but does not function.

TRUNK

Close/OPEN

Conversion

Displays the trunk lid latch switch operation status.

  • Close: Trunk lid latch switch is off (trunk is closed)

  • OPEN: Trunk lid latch switch is on (trunk is open)

2AC

TRUNK_LAMP

Off/On

Output

Displays the trunk compartment light on request signal send status. The BCM sends a trunk compartment light on request signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Trunk compartment light on request signal is not sent (trunk is closed)

  • On: Trunk compartment light on request signal is sent (trunk is open)

2Y

TRUNK_MOTOR

Off/On

Output

Displays the trunk lid release signal send status. The BCM sends a trunk lid release signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Trunk lid release signal is not sent (trunk lid opener switch is not pressed)

  • On: Trunk lid release signal is sent (trunk lid opener switch is pressed)

2Y

TURN_L_L

Off/On

Output

Displays the turn light (LH) operation status.

  • Off: Turn light (LH) turns off (turn switch is in OFF position)

  • On: Turn light (LH) flashes (turn switch is in LH position)

1G/3B

TURN_L_R

Off/On

Output

Displays the turn light (RH) operation status.

  • Off: Turn light (RH) turns off (turn switch is in OFF position)

  • On: Turn light (RH) flashes (turn switch is in RH position)

1E/3A

TURN_SW

Off/Turn_R_On/Turn_L_On/Unknown

Conversion

Displays the turn switch operation status. The BCM receives a turn switch input signal via CAN communication from the start stop unit.

  • Off: Turn switch off signal is received (turn switch is in OFF position)

  • Turn_R_On: Turn switch RH signal is received (turn switch is in RH position)

  • Turn_L_On: Turn switch LH signal is received (turn switch is in LH position)

  • Unknown: Signal which turn switch position is not determined is received

2C/2D

VPWR

V

Input

Displays the BCM supply voltage.

Switch the ignition ON (engine off):Approx. 12 V

1A

VPWR_B_H

V

Input

Displays the BCM supply voltage.

Switch the ignition ON (engine off):Approx. 12 V

1A

VSPD

KPH

Output

Displays the vehicle speed. The BCM sends a vehicle speed signal to the auto-light sensor/rain sensor via LIN communication.

—

3X

WASHER_CTRL

Off/Front/Rear

Output

Displays the washer operation request signal send status. The BCM sends a washer operation request signal to the electrical supply unit (ESU) via LIN communication.

  • Off: Washer operation request signal is not sent (washer is not operating)

  • Front: Washer operation request signal is sent (washer switch is in ON position)

  • Rear: —

2Y

WASHER_F_SW

Off/On

Conversion

Displays the washer switch operation status. The BCM receives a washer switch input signal via CAN communication from the start stop unit.

  • Off: Washer switch off signal is received (washer switch is in OFF position)

  • On: Washer switch on signal is received (washer switch is in ON position)

2C/2D

WASHER_FLD

Off(Normal)/On(Low)

Conversion

Displays the washer fluid level status.

  • Off (Normal): Washer fluid level is normal

  • On (Low): Washer fluid level is low

3Q

WASHER_R_SW

Off/On

NOTE:

Displayed on M-MDS but does not function.

WIP_CS_RLS

Off/Single_Wipe/SPEED_LOW/SPEED_HI/Failure

Conversion

Displays the auto wiper control request signal reception status. The BCM receives an auto wiper control request signal via LIN communication from the auto-light sensor/rain sensor.

  • Off: Off signal is received

  • Single_Wipe: Intermittent operation signal is received

  • SPEED_LOW: Continuous low operation signal is received

  • SPEED_HI: High speed signal is received

  • Failure: Auto wiper control request signal cannot be received

3X

WIP_F_AS

P_Posi/Not_P_Posi

Conversion

Displays the auto stop switch operation status (wiper arm and blade position).

  • P_Posi: Wipers are stopped in park position

  • Not_P_Posi: Wipers are stopped in position other than park

3M

WIP_F_INT_L

%

Conversion

Displays the sensitivity adjustment volume operation status. The BCM receives a sensitivity adjustment volume input signal via CAN communication from the start stop unit.

The value changes according to the sensitivity adjustment volume operation.

2C/2D

WIP_F_RY

Off/On

Output

Displays the wiper INT relay operation status.

  • Off: Wiper INT relay is off (wiper are not operating)

  • On: Wiper INT relay is on (wipers are operating)

3F

WIP_F_RY_HI

Off/On

Output

Displays the wiper HI relay operation status.

NOTE:

  • If the wiper switch is in the INT/AUTO position, the wiper HI relay turns on depending on the amount of rainfall.

  • Off: Wiper HI relay is off (wiper switch is in position other than HI)

  • On: Wiper HI relay is on (wiper switch is in HI position)

3G

WIP_F_SW

OFF/LOW/HI/INT / AUTO

Conversion

Displays the wiper switch operation status. The BCM receives a wiper switch input signal via CAN communication from the start stop unit.

  • Off: Wiper switch off signal is received (wiper switch is in OFF position)

  • LOW: Wiper switch LOW signal is received (wiper switch is in LO position)

  • HI: Wiper switch HI signal is received (wiper switch is in HI position)

  • INT/AUTO: Wiper switch INT signal or AUTO signal is received (wiper switch is in INT/AUTO position)

2C/2D

WIP_R_CTRL

Off/INT/On/On_1Time/On_2Time/On_3Time/On_4Time

NOTE:

Displayed on M-MDS but does not function.

WIP_R_INT

s

NOTE:

Displayed on M-MDS but does not function.

WIP_R_SW

OFF/LOW/INT

NOTE:

Displayed on M-MDS but does not function.
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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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