2021 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE

PID/Data Monitor Table

WARNING: This page is about a different variant/trim than selected.

-: Not applicable

PID/DATA MONITOR PART DESCRIPTION

PID/data monitor item Unit/Condition Definition PCM terminal
A/C_PRES_AFT_COMP KPa {MPA}, mBar {BAR}, psi, in H20
  • Displays refrigerant pressure input from refrigerant pressure sensor No. 2.
 1AU
A/C_PRES_AFT_COMP V
  • Displays refrigerant pressure sensor No. 2 voltage.
A/C_PRES_BEF_EXP_VLV kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays refrigerant pressure input from refrigerant pressure sensor No. 1.
 2AV
A/C_PRES_BEF_EXP_VLV V
  • Displays refrigerant pressure sensor No. 1 voltage.
A/C_REQ No (False)/Yes (True)
  • Displays A/C switch status received by PCM via CAN.
 CAN (2S, 2T)
A/C_SW Off/On
  • Displays the magnetic clutch engaged condition.
 2AF
A/C_VLV_DUTY_COMD %
  • Displays compressor valve (built-into A/C compressor) control duty value.
 1CA
AIRSHUT_CAL_STAT (2) -
  • Displays active air shutter fully open/closed position learning status.
 2Y
AIRSHUT_POS_ACT (2) % Open
  • Displays active air shutter position.
AIRSHUT_POS_COMD (2) % Open
  • Displays active air shutter operation status.
ALT_FIELD_CTRL_DUTY_OUT %
  • Displays field coil current control signal output to generator.
 1BP
ALT_VOLT_OUT_ACT V
  • Displays generator output voltage.
 1AG
AMB_AIR_TEMP °C, °F
  • Displays ambient air temperature.
 2R
AMB_AIR_TEMP_RAW °C, °F
  • Displays actually measured ambient temperature input from ambient temperature sensor.
APP_MODE Accelerator Pedal Is Partially Depressed/Accelerator Pedal Is Fully Depressed/Accelerator Pedal Is Not Depressed
  • Displays accelerator pedal depression status.
 -
APP_RELAT %
  • Displays accelerator pedal opening angle (relative value) with the fully released status as 0% and fully depressed status as 100%.
 -
APP1 %
  • Displays accelerator pedal opening angle (absolute value) input from APP sensor No. 1.
 2BN
APP1 V
  • Displays APP sensor No. 1 voltage.
APP2 %
  • Displays accelerator pedal opening angle (absolute value) input from APP sensor No. 2.
 2BB
APP2 V
  • Displays APP sensor No. 2 voltage.
AWD_CLTCH_CUR_COMD Amp
  • Displays the target value of the AWD solenoid control current built into the electronic control coupling.
 CAN (2S, 2T)
AWD_CLTCH_TRQ_COMD N.m {kgf.m, ft.lbf}
  • Displays the target value of the transmission torque to the rear wheels of the electronic control coupling.
BARO kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays actually measured barometric pressure input from BARO sensor built into PCM.
 -
BATT_CUR (1) Amp
  • Displays battery charge/discharge current.
 2Y
BATT_DAY (1) Day
  • Displays number of days elapsed since current sensor initialization.
 -
BATT_RES (1) mOhm
  • Displays battery internal resistance (estimated).
 -
BATT_SOC (1) %
  • Displays battery charge condition (estimated).
 -
BATT_TEMP (1) °C, °F
  • Displays battery temperature.
 -
BATT_VOLT (1) V
  • Displays battery voltage.
 -
BOOST_PRES_ACT_VOLT V
  • Displays boost pressure sensor voltage.
 2E
BOOST_PRES_ACT kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays actual turbocharger air outlet pipe pressure.
BOOST_PRES_DSD kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays target turbocharger air outlet pipe pressure.
 -
BOOST_AIR_TEMP_VOLT V
  • Displays boost air temperature sensor voltage.
 2BF
BOOST_AIR_TEMP °C, °F
  • Displays turbocharger air outlet pipe temperature.
BRK_SW1 False/True
  • Displays Brake switch No. 1 operation status.
 CAN (2S, 2T)
BRK_SW2 False/True
  • Displays Brake switch No. 2 operation status.
 2P
BRK_BSTR_PRES_ACT KPa {MPA}, mBar {BAR}, psi, in H20
  • Displays in the M-MDS but it does not operate.
 -
BRK_BSTR_PRES_VOLT V -
BRK_FLD_PRES kPa {MPA}, mBar {BAR}, psi, in H20 -
CAT_TEMP °C, °F
  • Displays estimated catalytic converter temperature.
 -
CHARGE_LAMP No (False)/Yes (True)
  • Displays charging system warning indication display condition/charging system warning light illumination condition.
 -
CLR_DTC_DIST km, ft, mi
  • Displays distance after DTC cleared.
 -
CLTCH_CUT_SW Off/On
  • Displays in the M-MDS but it does not operate.
 -
CLTCH_PEDAL_POS %
  • Displays in the M-MDS but it does not operate.
 -
CSTR_VENT_SOL_DUTY (1) %
  • Displays CV solenoid valve operation status.
 2AL
DOOR_SW Active/Not Active
  • Displays in the M-MDS but it does not operate.
 -
ECT °C, °F
  • Displays engine coolant temperature input from ECT sensor No. 1.
 1AH
ECT_VOLT V
  • Displays ECT sensor No. 1 voltage.
ECT2 °C, °F
  • Displays engine coolant temperature input from ECT sensor No. 2.
 2AD
ECT2_VOLT V
  • Displays ECT sensor No. 2 voltage.
EGR_COMD %
  • Displays target EGR valve position.
 1CC, 1CG, 1CH, 1CD
EGR_STEP_MOTOR_POS Step
  • Displays EGR valve stepping motor position.
ENG_COOL_VLV_POS_ACT °(deg)
  • Displays in the M-MDS but it does not operate.
 -
ENG_COOL_VLV_POS_COMD °(deg) -
ENG_OIL_LVL mm {IN}
  • Displays engine oil level.
 2Y
ENG_OIL_TEMP °C, °F
  • Displays engine oil temperature.
 2Y
ENG_RPM Rpm
  • Displays engine speed.
 -
ENG_RPM_DSD Rpm
  • Displays target engine speed.
 -
A/F_SEN_EQUIVALENCE_RATIO -
  • Displays excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control.
 -
EQUIVALENCE_RATIO_COMD -
  • Displays target excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control.
 -
EVAP_PRES (1) V
  • Displays fuel tank pressure sensor voltage.
 2AJ
EX_SHUT_VLV_ACT °(deg)
  • Displays in the M-MDS but it does not operate.
 -
EX_SHUT_VLV_DSD °(deg) -
FTP (1) Pa {KPA}, mBar {BAR}, psi, in H20
  • Displays fuel tank pressure.
 2AJ
FAN %
  • Displays fan control module control duty value.
 2I
FDIL_JD Engine Oil hasn't diluted by gasoline/Engine Oil has diluted by gasoline.
  • Displays if the engine oil is diluted due to fuel penetration.
 -
FLI %
  • Displays fuel level.
 CAN (2S, 2T)
FP_DUTY %
  • Displays fuel pump control duty value.
 2D
FRP kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays fuel distributor pressure.
 1W
FUEL_CAP_LAMP (1) No (False)/Yes (True)
  • Displays check fuel cap warning indication display condition/check fuel cap warning light illumination condition.
 -
FUEL_INJ_AMOUNT g/cyl
  • Displays fuel injection amount.
 -
FUEL_PRES kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays fuel pressure (absolute) input from high fuel pressure sensor.
 1W
FUEL_PRES kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays fuel pressure input from high fuel pressure sensor.
FUEL_PRES V
  • Displays high fuel pressure sensor voltage.
FUEL_PRES_COMD kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays target fuel pressure (high pressure fuel pump).
FUEL_PUMP_DSD kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays target fuel pressure (high pressure fuel pump).
FUEL_PULSE_WD microseconds
  • Displays fuel injection pulse width (fuel injector energization time) output to fuel injector.
 No. 1:1DG, 1DH No. 2:1CY, 1CZ
No. 3:1CU, 1CV
No. 4:1DC, 1DD
FUEL_PUMP_REQ Off/On
  • Displays fuel pump operation status.
 2D, 2AX
FUEL_RAIL_TEMP °C, °F
  • Displays fuel distributor temperature.
 -
FUELSYS_CL Yes/No
  • Feedback status of fuel injection control is displayed.
    • During feedback control by A/F sensor and HO2S
 -
FUELSYS_CL_FAULT Yes/No
  • Feedback status of fuel injection control is displayed.
    • During feedback control with either A/F sensor or HO2S having a malfunction
 -
FUELSYS_OL Yes/No
  • Feedback status of fuel injection control is displayed.
    • Feedback control is disabled at cold engine start
 -
FUELSYS_OL_DRIVE Yes/No
  • Feedback status of fuel injection control is displayed.
    • While feedback control is stopped
 -
FUELSYS_OL_FAULT Yes/No
  • Feedback status of fuel injection control is displayed.
    • Feedback control is disable due to system malfunction
 -
GEAR -
  • Displays gear commanded.
 CAN (2S, 2T)
GEN_DUTY_ACT %
  • Displays in the M-MDS but it does not operate.
 -
GEN_VOLT_COMD V
  • Displays generator voltage desired.
 -
HOOD_SW Active/Not Active
  • Displays in the M-MDS but it does not operate.
 -
HV_EV_BATT_CUR A -
HV_EV_BATT_SOC % -
HV_EV_BATT_VOLT_BEF_START V -
IAT °C, °F
  • Displays intake air temperature (No. 1) input from IAT sensor No. 1.
 2BE
IAT V
  • Displays IAT sensor No. 1 voltage.
IAT1 °C, °F
  • Displays intake air temperature (No. 1) input from IAT sensor No. 1.
IAT2 °C, °F
  • Displays intake air temperature (No. 2) input from IAT sensor No. 2.
 1Q
IAT2 V
  • Displays IAT sensor No. 2 voltage.
INGEAR False/True
  • Displays gears are engaged.
 CAN (2S, 2T)
INJ -
  • Displays the fuel injector control status while the engine is idling.
 -
I-STOP_D_SW Off/On
  • Displays in the M-MDS but it does not operate.
 -
I-STOP_N_SW Off/On -
I-STOP_OFF_SW Off/On -
I-STOP_VEH_STOP Off/On -
I-STOP_VSPD_HIST Off/On -
KNOCK_LRN -
  • Displays knock control system learning value.
 -
KNOCK_RTD °(deg)
  • Displays ignition timing correction for suppressing engine knock (Performs retard correction (negative indication) according to the occurrence of engine knock, and it approaches approx. 0° by the advance correction due to engine knock suppression.)
 -
L_SPD_FAN Off/On
  • Displays the cooling fan (low speed range) control status.
 2AM
H_SPD_FAN Off/On
  • Displays the cooling fan (high speed range) control status.
LOAD %
  • Displays ratio (absolute value) of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder.
 -
LOAD_CALC %
  • Displays ratio (calculated value) of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder.
 -
LONG_FUEL_TRIM %
  • Displays fuel learning correction amount estimated based on A/F sensor signal.
 -
LONG_FUEL_TRIM_HO2S_SEN %
  • Displays fuel learning correction amount estimated based on HO2S signal.
 -
MAF g/s
  • Displays mass air flow input from MAF sensor.
 2BE
MAF g/s
  • Displays mass air flow input from MAF sensor.
MAF V
  • Displays MAF sensor voltage.
MANUAL_GEAR_POS -
  • Displays in the M-MDS but it does not operate.
 -
MAP kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays manifold absolute pressure input from MAP sensor.
 1X
MAP_VOLT V
  • Displays MAP sensor voltage.
MIL Off/On
  • Displays check engine light illumination status.
 CAN (2S, 2T)
MIL_DIST km, ft, mi
  • Displays travelled distance since check engine light illuminated.
 -
MISFIRE_CAT_TOTAL -
  • Displays number of misfires (total number in all cylinders) leading to catalytic converter temperature increase.
 -
MISFIRE_CYL1_CAT -
  • Displays number of misfires in No. 1 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire).
 -
MISFIRE_CYL2_CAT -
  • Displays number of misfires in No. 2 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire).
 -
MISFIRE_CYL3_CAT -
  • Displays number of misfires in No. 3 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire).
 -
MISFIRE_CYL4_CAT -
  • Displays number of misfires in No. 4 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire).
 -
MISFIRE_FIRCYC_COUNT_CAT -
  • Displays threshold of malfunction determination for number of misfires (total number in all cylinders) leading to catalytic converter temperature increase.
 -
MISFIRE_EMI_TOTAL -
  • Displays number of misfires (total number in all cylinders) under conditions required by emission regulations.
 -
MISFIRE_CYL1_EMI -
  • Displays number of misfires in No. 1 cylinder under conditions required by emission regulations.
 -
MISFIRE_CYL2_EMI -
  • Displays number of misfires in No. 2 cylinder under conditions required by emission regulations.
 -
MISFIRE_CYL3_EMI -
  • Displays number of misfires in No. 3 cylinder under conditions required by emission regulations.
 -
MISFIRE_CYL4_EMI -
  • Displays number of misfires in No. 4 cylinder under conditions required by emission regulations.
 -
MISFIRE_FIRCYC_COUNT_EMI -
  • Displays threshold of malfunction determination for number of misfires (total number in all cylinders) under conditions required by emission regulations.
 -
HO2S_FUEL_TRIM %
  • Displays fuel correction amount based on HO2S signal including SHRT_FUEL_TRIM_HO2S_SEN and LONG_FUEL_TRIM_HO2S_SEN.
 -
A/F_SEN_CUR mA
  • Displays A/F sensor current.
 1S, 1M, 1T
A/F_SEN_HEAT False/True
  • Displays A/F sensor heater operation status.
 1CB
A/F_SEN_HEAT %
  • Displays A/F sensor heater control duty value.
HO2S_HEAT False/True
  • Displays HO2S heater operation status.
 2BJ
HO2S_HEAT %
  • Displays HO2S heater control duty value.
A/F_SEN_OUT_VOLT V
  • Displays A/F sensor output voltage.
 1S, 1M, 1T
HO2S_OUT_VOLT V
  • Displays HO2S output voltage.
 2BK, 2BL
OIL_PRES kPa {MPA}, mBar {BAR}, psi, in H20
  • Displays engine oil pressure.
 1AS
OIL_PRES_SOL Off/On
  • Displays engine oil solenoid valve operation status.
 1CK
OIL_PUMP_DUTY % Duty Cycle
  • Displays engine oil pressure control circuit duty cycle.
 1AS
OIL_TEMP °C, °F
  • Displays engine oil temperature (estimated).
 1AN
PRG_DUTY %
  • Displays purge solenoid valve control duty value.
 1AW
REV_SW False/True
  • Displays in the M-MDS but it does not operate.
 -
SHRT_FUEL_TRIM %
  • Displays fuel feedback correction amount estimated based on A/F sensor signal.
 -
SHRT_FUEL_TRIM_HO2S_SEN %
  • Displays fuel feedback correction amount estimated based on HO2S signal.
 -
SPARK_ADV °(deg)
  • Displays ignition timing. (BTDC)
 -
THERMOSTAT (1) -
  • Indicates heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) when thermostat monitoring is finished.
 -
THERMOSTAT (1) °C, °F
  • Indicates engine coolant temperature when thermostat monitoring is finished.
 -
THERMOSTAT_MIN (1) -
  • Indicates upper limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution.
 -
THERMOSTAT_MIN (1) °C, °F
  • Indicates upper limit of engine coolant temperature for thermostat monitoring execution.
 -
THERMOSTAT_MAX (1) -
  • Indicates lower limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution.
 -
THERMOSTAT_MAX (1) °C, °F
  • Indicates lower limit of engine coolant temperature for thermostat monitoring execution.
 -
THRO_ACTAT_COMD %
  • Displays throttle valve actuator operation status.
 1CQ, 1CR
THRO_ANG_ACT °(deg)
  • Displays actual throttle valve position angle.
 -
THRO_ANG_COMD °(deg)
  • Displays target throttle valve position angle.
 -
TP_RELAT %
  • Displays throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point.
 -
TP_VOLT_CLOSE_STOP1 V
  • Displays TP sensor No. 1 adaptation voltage at CTP.
 -
TP_VOLT_CLOSE_STOP2 V
  • Displays TP sensor No. 2 adaptation voltage at CTP.
 -
TP1 %
  • Displays throttle valve position No. 1.
 1O
TP1 V
  • Displays TP sensor No. 1 voltage.
TP2 %
  • Displays throttle valve position No. 2.
 1V
TP2 V
  • Displays TP sensor No. 2 voltage.
VLV_TIMING_IN %
  • Displays electric variable valve control duty value.
 -
VLV_TIMING_ACT_IN °(deg)
  • Displays actual intake variable valve timing-advance amount from max retard position
 1AD, 1BN, 1BM, 1BV
VLV_TIMING_DSD_IN °(deg)
  • Displays target intake variable valve timing-advance amount from max retard position
 -
VLV_TIMING_EX %
  • Displays OCV control duty value.
 -
VLV_TIMING_ACT_EX °(deg)
  • Displays actual exhaust variable valve timing-retard amount from max advance position
 1CO
VLV_TIMING_DSD_EX °(deg)
  • Displays target exhaust variable valve timing-retard amount from max advance position
 -
VPWR V
  • Displays battery positive voltage.
 2A
VSS KPH, MPH
  • Displays vehicle speed.
 CAN (2S, 2T)
WASTEGATE_POS_ACT_VOLT V
  • Displays wastegate valve position sensor voltage.
 1AV
WASTEGATE_POS_ACT %
  • Displays wastegate valve position control actual value.
WASTEGATE_POS_DSD %
  • Displays wastegate valve position control target value.
 -
WHEEL_DRIVE_CTRL_COMD -
  • Displays AWD solenoid control duty value.
 CAN (2S, 2T)
WHEEL_TRQ_EST N.m {kgf.m, ft.lbf}
  • Displays total torque estimated value for all wheels.
 CAN (2S, 2T)
WHEEL_TRQ_REQ N.m {kgf.m, ft.lbf}
  • Displays total torque target value for all wheels.
WSPD_L/F KPH, MPH
  • Displays rotation speed of wheel (LF).
WSPD_R/F KPH, MPH
  • Displays rotation speed of wheel (RF).
WSPD_L/R KPH, MPH
  • Displays rotation speed of wheel (LR).
WSPD_R/R KPH, MPH
  • Displays rotation speed of wheel (RR).
(1) U.S.A. and CANADA

(2) Vehicles with active air shutter
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.