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Using The M-MDS

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Measure the PID value.
    • If PID value is not within the specification, follow the instructions in action column.
    NOTE:
    • The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
    • The simulation items that are used in the engine control system operation inspection are as follows.
      • ACCS, ARPMDES, EVAPCR EVAPCV, FAN1, FAN3, FP, GRL_SHT_DSD, INJ_1, INJ_2, INJ_3, INJ_4, OIL_P_SOL, Test, VT EX_DES
-: Not applicable
Item (definition) Unit/Condition Definition Condition/Specification (Reference)
AC_PRES KPa {MPa}, mBar{Bar}, psi, in H20 Refrigerant pressure input from refrigerant pressure sensor
  • Displays refrigerant pressure
V Refrigerant pressure sensor voltage
  • Refrigerant pressure is 1.0 MPa {10 kgf/cm2 , 145 psi}: Approx. 1.58 V
  • Refrigerant pressure is 1.1 MPa {11 kgf/cm2 , 160 psi}: Approx. 1.75 V
  • Refrigerant pressure is 1.2 MPa {12 kgf/cm2 , 174 psi}: Approx. 1.88 V
AC_REQ Off/On A/C switch status received by PCM via CAN
  • A/C switch off: Off
  • A/C switch on: On
ACCS Off/On A/C relay status input from A/C relay
  • A/C relay off: Off
  • A/C relay on: On
ALTF % Field coil current control signal output to generator
  • Ignition switched ON (engine off): 0%
  • Idle: Approx. 42%
  • Racing (Engine speed is 2, 000 rpm): Approx. 29%
ALTF_ACT(1) % Actually measured value of field coil current signal input from generator
  • Displays actual generator field current control duty value
ALTT V(2) V Generator output voltage
  • Idle (no E/L): Approx. 14 V (This is internal calculation value and differs from terminal voltage)
AMB_TEMP °C, °F Actually measured ambient temperature input from ambient temperature sensor
  • Displays ambient air temperature
APP % Accelerator pedal opening angle (relative value) with the fully released status as 0% and fully depressed status as 100%
  • Accelerator pedal released: Approx. 0%
  • Accelerator pedal fully depressed: Approx. 100%
APP1 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal fully depressed: Approx. 82%
V APP sensor No. 1 voltage
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal fully depressed: Approx. 4.1 V
APP2 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal fully depressed: Approx. 41%
V APP sensor No. 2 voltage
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal fully depressed: Approx. 2.05 V
ARPMDES RPM Target engine speed
  • Displays target engine speed
BARO KPa {MPa}, mBar {Bar}, psi, in H20 Actually measured barometric pressure input from barometric pressure sensor built into PCM
  • Displays BARO
V BARO sensor voltage
  • Ignition switched ON (at sea level): Approx. 4.08 V
BATT_CUR(1) A Battery current
  • Displays battery charge/discharge current value
BATT_DAY(1) - Number of days elapsed since current sensor initialization
  • Displays vehicle battery days in service.
BATT_RES(1) - Battery internal resistance (estimated)
  • Displays battery inferred internal resistance.
BATT_SOC(1) % Battery charge condition (estimated)
  • Displays battery estimated state of charge.
BATT_TEMP(1) °C, °F Battery temperature
  • Displays battery fluid temperature
BATT_V(1) V Battery voltage
  • Displays battery voltage
BOO High/Low Brake switch (No. 1 signal) ON/OFF status
  • Brake pedal released: Low
  • Brake pedal fully depressed: High
BPA High/Low Brake switch (No. 2 signal) ON/OFF status
  • Brake pedal released: Low
  • Brake pedal fully depressed: High
CAP_SYS_10(1) Off/On Open circuit in capacitor (i-ELOOP) (power cannot be supplied from capacitor)
  • Capacitor internal circuit is not open: Off
  • Capacitor internal circuit is open: On
CAP_SYS 13(1) Off/On Capacitor (i-ELOOP) capacitance malfunction
  • Capacitor (i-ELOOP) capacitance status is not normal: On
  • Capacitor (i-ELOOP) capacitance status is normal: Off
CAP_SYS 14(1) Off/On Capacitor (i-ELOOP) capacitance deterioration
  • Capacitor (i-ELOOP) capacitance status deteriorates: On
  • Capacitor (i-ELOOP) capacitance status is normal: Off
CAP_SYS 15(1) Off/On Capacitor (i-ELOOP) internal resistance malfunction
  • Internal resistance status in capacitor (i-ELOOP) is not normal: On
  • Internal resistance status in capacitor (i-ELOOP) is normal: Off
CAP_SYS 16(1) Off/On Capacitor (i-ELOOP) internal resistance deterioration
  • Internal resistance status in capacitor (i-ELOOP) deteriorates: On
  • Internal resistance status in capacitor (i-ELOOP) is normal: Off
CATT11_DSD °C, °F Estimated catalytic converter temperature
  • Displays estimated catalytic converter temperature
CHRGLP Off/On Charging system warning light illumination status
  • Charging system warning light not illuminated: Off
  • Charging system warning light illuminated: On
CPP(3) Off/On Clutch pedal position
  • Clutch pedal fully depressed: On
  • Clutch pedal released: Off
CPP/PNP(3) Off/On Shift lever position
  • Other than neutral: Off
  • Neutral: On
ECT °C, °F Engine coolant temperature
  • Displays ECT
V ECT sensor No. 1 voltage
  • ECT is 20 °C {68 °F}: Approx. 3.10 V
  • ECT is 40 °C {104 °F}: Approx. 2.16 V
  • ECT is 60 °C {140 °F}: Approx. 1.40 V
  • ECT is 80 °C {176 °F}: Approx. 0.87 V
  • ECT is 100 °C {212 °F}: Approx. 0.54 V
ECT2_V(5) V ECT sensor No. 2 voltage
  • ECT is 20 °C {68 °F}: Approx. 3.10 V
  • ECT is 40 °C {104 °F}: Approx. 2.16 V
  • ECT is 60 °C {140 °F}: Approx. 1.40 V
  • ECT is 80 °C {176 °F}: Approx. 0.87 V
  • ECT is 100 °C {212 °F}: Approx. 0.54 V
EQ_RAT11 - Excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control
  • Idle (after warm up): Approx. 1
EQ_RAT11_DSD - Target excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control
  • Indicate target lambda (Excess air factor = supplied air amount/theoretical air/fuel ratio)
ETC_ACT ° Actual throttle valve opening angle Ignition switched ON (engine off) 
  • Accelerator pedal released: Approx. 12.89 °
  • Accelerator pedal fully depressed: Approx. 86.03 °

Idle (after warm up) 
  • Accelerator pedal released: Approx. 3.2 °
ETC_DSD % Target throttle valve opening angle (percent)
  • Displays target TP opening angle (percent)
° Target throttle valve opening angle
  • Displays target TP opening angle
EVAPCP % Purge solenoid valve control duty value
  • Idle (after warm up); Approx. 0%
  • Racing (Engine speed 2, 000 rpm): 4.3-35%
  • Racing (Engine speed 4, 000 rpm): Approx. 66%
EVAPCV(5) Off/On CV solenoid valve operation status
  • Simulation item (EVAPCV) is ON: On
FAN1 Off/On Cooling fan relay No. 1 operation status
  • Cooling fan relay No. 1 off: Off
  • Cooling fan relay No. 1 on: On
FAN3 Off/On Cooling fan relay No. 2 and No. 3 operation status
  • Cooling fan relay No. 2 and No. 3 off: Off
  • Cooling fan relay No. 2 and No. 3 on: On
FCL(5) Off/On Check fuel cap warning light illumination status
  • Check fuel cap warning light not illuminated: Off
  • Check fuel cap warning light illuminated: On
FIA - Fuel injection amount
  • Displays fuel injection amount
FLI % Fuel level
  • Fuel gauge level F: Approx. 100%
  • Fuel gauge level E: Approx. 0%
FP Off/On Fuel pump relay operation status
  • Ignition switched ON (engine off): Off
  • Cranking: On
  • Idle (after warm up): On
FP_DUTY % Fuel pump control module control duty value
  • Ignition switched ON (engine off): Approx. 55.74%
  • Cranking: Approx. 95%
  • Idle (after warm up): Approx. 55.74%
FTP(5) KPa {MPa}, mBar{Bar}, psi, in H20 Fuel tank pressure
  • Displays fuel tank pressure
V Fuel tank pressure sensor voltage
  • Fuel tank pressure is equal to barometric pressure: Approx. 2.6 V
FUEL_P_DSD KPa {MPa}, mBar{Bar}, psi, in H20 Target fuel pressure (high pressure fuel pump)
  • Displays target fuel pressure (high pressure fuel pump)
FUEL_PRES KPa {MPa}, mBar{Bar}, psi, in H20 Fuel pressure
  • Displays fuel pressure
V Fuel pressure sensor voltage
  • Fuel pressure is 3.0 MPa {31 kgf/cm2 , 435 psi}: Approx. 0.92 V
  • Fuel pressure is 4.8 MPa {49 kgf/cm2 , 696 psi}: Approx. 1.17 V
FUELPW Sec Fuel injection pulse width (fuel injector energization time) output to fuel injector
  • Idle (after warm up): Approx. 1.4 ms
  • Racing (engine speed is 2, 000 rpm): Approx. 1.1 ms
  • Racing (engine speed is 4, 000 rpm): Approx. 1.0 ms
FUELSYS OL/CL/OL_Drive/OL_Fault/CL_Fault Feedback status of fuel injection control is displayed
OL: Feedback control is disabled at cold engine start
CL: During feedback control by A/F sensor and HO2S
OL_Drive: While feedback control is stopped
OL_Fault: Feedback control is disable due to system malfunction
CL_Fault: During feedback control with either A/F sensor or HO2S having a malfunction
  • Idle (after warm up): OL or CL
  • Racing (engine speed is 2, 000 rpm): CL
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): OL-Drive
GEAR(4) Unknown/1st/2nd/3rd/4th/5th/6th/Not in P/Park/Neutral/Drive/Reverse Gear commanded
  • Selector lever at P position: Park
  • Selector lever at R position: Reverse
  • Selector lever at N position: Neutral
  • Selector lever is in D or M position while vehicle is stopped: 1st
GRL_SHT(1) % Active air shutter position
  • Displays active air shutter position
GRL_SHT_CA L(1) Not/Open half/Close half/Fully Active air shutter fully open/closed position learning status
  • Displays active air shutter fully open/closed position learning status
HTR11 Off/On A/F sensor heater operation status
  • Ignition switched ON (engine off): Off
  • Idle (after warm up): On
% A/F sensor heater control duty value
  • Ignition switched ON (engine off): 0%
  • Idle (after warm up): Approx. 40%
HTR12 Off/On HO2S heater operation status
  • Ignition switched ON (engine off): Off
  • Idle (after warm up): On
% HO2S heater control duty value
  • Ignition switched ON (engine off): 0%
  • Idle (after warm up): Approx. 40%
IAT °C, °F Intake air temperature (No. 1)
  • Displays IAT (No. 1)
V IAT sensor No. 1 voltage
  • IAT is 20 °C {68 °F}: Approx. 2.70 V
  • IAT is 40 °C {104 °F}: Approx. 1.80 V
  • IAT is 60 °C {140 °F}: Approx. 1.20 V
IAT2 °C, °F Intake air temperature (No. 2)
  • Displays IAT (No. 2)
V IAT sensor No. 2 voltage
  • IAT2 is 20 °C {68 °F}: Approx. 3.57 V
  • IAT2 is 40 °C {104 °F}: Approx. 2.70 V
  • IAT2 is 60 °C {140 °F}: Approx. 1.87 V
INGEAR(3) Off/On Gears are engaged
  • When the following conditions are satisfied: On
    • Other than neutral
    • Clutch pedal released
  • Except above: Off
ISC_FBK % ISC feedback value
  • IAT2 is 20 °C {68 °F}: Approx. 3.57 V
  • IAT2 is 40 °C {104 °F}: Approx. 2.70 V
  • IAT2 is 60 °C {140 °F}: Approx. 1.87 V
ISC_FBK_LRN % Learning value for calculating ISC feedback amount
  • Displays ISC feedback learning value
IVS Off Idle/Idle CTP condition
  • Racing: Off Idle
  • Idle: Idle
KNOCKR ° Camshaft retard amount when knocking determined
  • Ignition switched ON (engine off): 0 °
  • Idle (after warm up): 0 °
LOAD % Ratio of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder
  • Idle (after warm up): Approx. 17.64%
  • Racing (engine speed is 2, 000 rpm): Approx. 14.51%
  • Racing (engine speed is 4, 000 rpm): Approx. 21.17%
LONGFT1 % Fuel learning correction amount estimated based on A/F sensor signal
  • Idle (after warm up): Approx. -2.34%
  • Racing (engine speed is 2, 000 rpm): Approx. -0.78%
  • Racing (engine speed is 4, 000 rpm): Approx. -0.78%
LONGFT12 % Fuel learning correction amount estimated based on heated oxygen sensor signal
  • Idle (after warm up): Approx. 0%
LOW_OIL Never Detected/Detected Engine oil pressure condition Never Detected: Engine oil pressure is high Detected: Engine oil pressure is low
  • Ignition switched ON (engine off): Detected
  • Idle (after warm up): Detected
  • Racing (engine speed is 2, 000 rpm): Never Detected
M_GEAR(3) Neutral/1st gear/2nd gear/3rd gear/4th gear/5th gear/6th gear/Reverse/Undefined/Auto/In Progress/YSF/Error Manual gear position
  • Displays manual gear position
MAF g/Sec Mass air flow
  • Displays MAF
V MAF sensor voltage
  • Ignition switched ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V
  • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V
MAP KPa {MPa}, mBar{Bar}, psi, in H20 Manifold absolute pressure
  • Displays MAP
V MAP sensor voltage
  • Ignition switched ON (engine off) (MAP: 101 kPa {1.03 kgf/cm2 , 14.6 psi}): Approx. 4.07 V
  • Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm2 , 4.8 psi}): Approx. 1.34 V
  • Racing (engine speed is 2, 000 rpm) (MAP: 26 kPa {0.27 kgf/cm2 , 3.8 psi}): Approx. 1.05 V
MF_CAT1 - 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)
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 1 cylinder)
MF_CAT_2 - 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)
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 2 cylinder)
MF_CAT_3 - 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)
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 3 cylinder)
MF_CAT_4 - 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)
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 4 cylinder)
MF_CAT_FCC - Threshold of malfunction determination for number of misfires (total number in all cylinders) leading to catalytic converter temperature increase
  • Displays number of misfire determinations (for catalytic converter)
MF_CAT_TTL - Number of misfires (total number in all cylinders) leading to catalytic converter temperature increase
  • Displays number of misfires corresponding to possible catalytic converter damage (total)
MF_EMI1 - Number of misfires in No. 1 cylinder under conditions required by emission regulations
  • Displays number of misfires possibly affecting emission (No. 1 cylinder)
MF_EMI_2 - Number of misfires in No. 2 cylinder under conditions required by emission regulations
  • Displays number of misfires possibly affecting emission (No. 2 cylinder)
MF_EMI_3 - Number of misfires in No. 3 cylinder under conditions required by emission regulations
  • Displays number of misfires possibly affecting emission (No. 3 cylinder)
MF_EMI_4 - Number of misfires in No. 4 cylinder under conditions required by emission regulations
  • Displays number of misfires possibly affecting emission (No. 4 cylinder)
MF_EMI_FCC - Threshold of malfunction determination for number of misfires (total number in all cylinders) under conditions required by emission regulations
  • Displays number of misfire determinations (for emission)
MF_EMI_TTL - Number of misfires (total number in all cylinders) under conditions required by emission regulations
  • Displays number of misfires possibly affecting emission (total)
MIL Off/On Check engine light illumination status
  • Check engine light not illuminated: Off
  • Check engine light illuminated: On
MIL_DIS km {mph}, ft, mi Travelled distance since check engine light illuminated
  • Displays travelled distance since check engine light illuminated
O2S11 μA A/F sensor current
  • Idle (after warm up): Approx. -39 μA
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 3.84 mA
O2S12 V HO2S voltage
  • Idle (after warm up): 0-1.0 V
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 0 V
OIL_P_SOL Off/On Engine oil solenoid valve operation status
  • ECT below 98 °C {208 °F} and engine speed below 4, 000 rpm: On
  • ECT above 98 °C {208 °F} or engine speed above 4, 000 rpm: Off
OIL_TEMP °C, °F Estimated engine oil temperature
  • Displays estimated engine oil temperature
PN_SW(4) Open/Closed Parking/neutral
  • Selector lever at P position or N position: Closed
  • Except above: Open
PRE_CHG_DI S(1) km, ft {mi} Distance at precharge
  • Displays distance at precharge
RO2FT1 % Fuel correction amount based on HO2S signal including SHRTFT12 and LONGFT12
  • Idle (after warm up): Approx. 0.5%
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 3.99%
RPM RPM Engine speed
  • Displays engine speed
SHRTFT1 % Fuel feedback correction amount estimated based on A/F sensor signal
  • Idle (after warm up): Approx. 1.56%
  • Racing (engine speed is 2, 000 rpm): Approx. -3.12%
  • Racing (engine speed is 4, 000 rpm): Approx. -8.59%
SHRTFT12 % Fuel feedback correction amount estimated based on HO2S signal
  • Idle (after warm up): Approx. 0%
SPARKADV ° Ignition timing
  • Displays ignition timing
Test Off/On Test mode operation condition due to forced override operation
  • Test mode off: Off
  • Test mode on: On
TH_M - Thermostat monitor
  • Indicates heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) when thermostat monitoring is finished
TH_M_MAX - Thermostat monitor max
  • Indicates upper limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution
TH_M_MIN - Thermostat monitor min
  • Indicates lower limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution
TP REL % Throttle valve opening angle (relative value) with value at throttle valve fully open timing as the start point
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal fully depressed: Approx. 82%
TP1 V TP sensor No. 1 voltage
  • Accelerator pedal released: Approx. 1.11 V
  • Accelerator pedal fully depressed: Approx. 4.59 V
% Throttle valve position No. 1
  • Accelerator pedal released: Approx. 22%
  • Accelerator pedal fully depressed: Approx. 92%
TP2 V TP sensor No. 2 voltage
  • Accelerator pedal released: Approx. 3.92 V
  • Accelerator pedal fully depressed: Approx. 0.41 V
% Throttle valve position No. 2
  • Accelerator pedal released: Approx. 22%
  • Accelerator pedal fully depressed: Approx. 82%
TPCT V TP sensor No. 1 voltage at CTP
  • Ignition switched ON (engine off): Approx. 0.5 V
TPCT2 V TP sensor No. 2 voltage at CTP
  • Ignition switched ON (engine off): Approx. 4.5 V
VPWR V Battery positive voltage
  • Displays battery voltage
VSS KPH, MPH Vehicle speed
  • Displays vehicle speed
VT EX_DES ° Desired exhaust valve timing
  • Displays desired exhaust valve timing
VT IN_ACT ° Actual intake valve timing
  • Displays actual intake valve timing
VT IN_DES ° Desired intake valve timing
  • Displays desired intake valve timing
VT_EX_ACT ° Actual exhaust valve timing
  • Displays actual exhaust valve timing
VT_EX_DUTY ° OCV control duty value
  • Idle (after warm up): Approx. 0%
  • Racing (engine speed is 2, 000 rpm): Approx. 46%
(1) With i-ELOOP
(2) Without i-ELOOP
(3) MTX
(4) ATX
(5) U.S.A. and CANADA
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