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Home >> Mazda >> 2011 >> 2 Touring, 1.5 Z, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System MZR 1.5 >> Pcm Inspection >> Using The M-MDS

Using The M-MDS

NOTE:
  1. Connect the M-MDS to the DLC-2.
  2. Turn the ignition switch to the ON position.
  3. Measure the PID value.
    • If PID value is not within the specification, follow the instructions in Action column.
    Fig 1: Identifying DLC 2
    G06730862Courtesy of MAZDA MOTORS CORP.
    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, ALTF, ARPMDES, EVAPCP, EVAPCV, FAN1, FAN2, FP, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, Test, VT Duty1 wt
ENGINE CONTROL SYSTEM OPERATION INSPECTION REFERNCE CHART

Item (definition) Unit/Condition Condition/Specification (Reference) Inspection item(s)
A/CT (Evaporator temperature signal voltage) V
  • Indicates the evaporator temperature
  • Evaporator temperature sensor
A/C TV (Evaporator temperature signal voltage) V
  • Evaporator temperature sensor is 20°C {68°F}: Approx. 2.5 V
  • Evaporator temperature sensor
AAT (Ambient air temperature) °C,°F
  • Indicates the ambient air temperature
  • IAT sensor
AC_REQ (A/C request signal) OFF/ON
  • A/C switch OFF: OFF
  • A/C switch ON: ON
  • Perform applicable DTC trouble shooting
ACCS (A/C relay) OFF/ON
  • A/C relay is OFF: OFF
  • A/C relay is ON: ON
  • A/C relay
  • The following PIDs
    • PCM_T, TP1, TP2, MAP, ECT, RPM, CPP/PNR CPP, VSS
AFR (Target air fuel ratio) -
  • Target air fuel ratio is displayed
  • A/F sensor
AFR_ACT (Actual air fuel ratio) -
  • Actual air fuel ratio is displayed
  • A/F sensor
ALTF (Generator field coil control duty value) %
  • Idle, E/L is operating: Duty value increases
  • Generator
  • The following PIDs

  • MAP, ECT, RPM, VSS, VPWR, ALTT V
ALTT V (Generator output voltage) V
  • Idle (no E/L): Approx. 14 V (This is an internal calculation value and differs from the terminal voltage.)
  • Generator
APP1 (APP sensor No. 1) %
  • Accelerator pedal released: Approx. 32 %
  • Accelerator pedal depressed: Approx. 78 %
  • APP sensor No. 1
V
  • Accelerator pedal released: Approx. 1.6 V
  • Accelerator pedal depressed: Approx. 3.9 V
APP2 (APP sensor No. 2) %
  • Accelerator pedal released: Approx. 20 %
  • Accelerator pedal depressed: Approx. 67 %
  • APP sensor No. 2
V
  • Accelerator pedal released: Approx. 1.0 V
  • Accelerator pedal depressed: Approx. 3.4 V
ARPMDES (Target engine speed) RPM
  • Indicate the target engine speed
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, ECT, RPM, BOO, SCCS, CPP/PNP, CPP, COLP, BARO, VSS, ALTT V
BARO (Barometric pressure) kPa, Bar, psi
  • Indicate the BARO
  • BARO sensor
V
  • Switch the ignition to ON (at sea level): approx. 4.1 V
BOO (Brake switch) OFF/ON
  • Brake pedal released: OFF
  • Brake pedal depressed: ON
  • Brake switch No. 1
BPA (Brake pressure applied switch) OFF/ON
  • Brake pedal released: ON
  • Brake pedal depressed: OFF
  • Brake switch No. 2
CATT11_DSD (Estimated catalytic converter temperature) °C Indicates the estimated catalytic converter temperature
  • Perform applicable DTC troubleshooting.
CHRGLP (Generator warning light) OFF/ON
  • Switch the ignition to ON: ON
  • idle (after warm up): OFF
  • Perform applicable DTC troubleshooting.
COLP (Refrigerant pressure switch (middle)) OFF/ON
  • Refrigerant pressure is more than the specification.: On
  • Refrigerant pressure is less than the specification.: Off
  • Refrigerant pressure switch (middle)
CPP(2) (Clutch pedal position) OFF/ON
  • Clutch pedal depressed: On
  • Clutch pedal released: Off
  • CPP switch
CPP/PNP(2) (Shift lever position) OFF/ON
  • Neutral: On
  • Other than neutral: Off
  • Neutral switch
DGP_DIS_1(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
DGP_DIS_2(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
DGP_MAX_DIF(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
DGP_SPD(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
ECT (Engine coolant temperature No. 1) °C,°F
  • Indicate the ECT (No. 1)
  • ECT sensor No. 1
V
  • ECT (No. 1) is 20°C {68°F}: Approx. 3.0 V
  • ECT (No. 1) is 80°C {176°F}: Approx. 0.9 V
ECT2 (Engine coolant temperature No. 2) °C,°F
  • Indicate the ECT (No. 2)
  • ECT sensor No. 2
V
  • ECT (No. 2) is 20°C {68°F}: 3.04-3.14 V
  • ECT (No. 2) is 80°C {176°F}: 0.76-0.83 V
EQ_RAT11 (Equivalence ratio (lambda)) -
  • idle (after warm up): Approx. 1
  • A/F sensor
EQ_RAT11_DSD (Desired equivalence ratio (lambda)) -
  • Indicate the target lambda (Excess air factor = supplied air amount/theoretical air/fuel ratio)
  • A/F sensor
ETC_ACT (Electronic throttle control actual) °
  • Indicate the TP angle
  • Throttle valve actuator
ETC_DSD (Electronic throttle control desired) %
  • Indicate the target TP angle (percent)
  • Throttle valve actuator
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, ECT, RPM, BOO, SCCS, CPP/PNP, CPP, COLP, BARO, VSS, ALTT V
°
  • Indicate the target TP angle
EVAPCP (Purge solenoid valve duty value) %
  • Switch the ignition to ON: 0 %
  • idle (after warm up): 0 %
  • Purge solenoid valve
  • The following PIDs
    • TP1, TP2, MAF, IAT, MAP, ECT, O2S11, O2S12, RPM, BOO, BARO, VPWR
EVAPCV (Evaporative emission canister vent valve) OFF/ON
  • Simulation item (EVAPCV) is ON: ON
  • CV solenoid valve
FAN1 (Cooling fan relay No. 1 control signal) OFF/ON
  • During test mode

CTP: Off
WOT: On
  • Cooling fan relay No. 1
  • The following PIDs

  • ECT, COLP
FAN2 (Cooling fan relay No. 2 control signal) OFF/ON
  • During test mode

    CTP: Off

    WOT: On
  • Cooling fan relay No. 2
  • The following PIDs

  • ECT, COLP
FCL (Fuel cap warning light) OFF/ON
  • Fuel cap warning light not illuminated: OFF
  • Fuel cap warning light illuminated: ON
  • Perform applicable DTC troubleshooting.
FLI (Fuel level) %
  • Fuel gauge level F: approx. 100 %
  • Fuel gauge level E: approx. 0 %
  • Perform applicable DTC troubleshooting.
FP (Fuel pump relay) OFF/ON
  • Switch the ignition to ON: OFF
  • Cranking: ON
  • idle (after warm up): ON
  • Fuel pump relay
  • The following PIDs
FTP (Fuel tank pressure sensor) kPa, Bar, psi
  • Indicate the fuel tank pressure
  • Fuel tank pressure sensor
V
  • Fuel tank pressure is equal to barometric pressure: approx. 2.6 V
FUELPW (Fuel injector duration) sec
  • idle (after warm up): Approx. 1.4 ms
  • Fuel injector
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, MAP, ECT, O2S11, O2S12, RPM, BOO, COLP, BARO, VSS, VPWR
FUELSYS (Fuel system status) OL/CL/OL Drive/OL Fault/CL_Fault
  • idle (after warm up): CL
  • Fuel injector
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, MAP, ECT, O2S11, O2S12, RPM, BOO, COLP, BARO, VSS, VPWR
GEAR(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
HTM_CNT(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
HTM_DIS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
HTR11 (A/F sensor heater) OFF/ON
  • Idle (after warm up): ON
  • A/F sensor heater
  • Inspect following PIDs
    • TP1, TP2, MAF, IAT, MAP, ECT, RPM, VPWR
HTR12 (HO2S heater control) OFF/ON
  • Idle (after warm up): ON
  • HO2S heater control
  • The following PIDs
    • TP1, TP2, MAF, IAT, MAP, ECT, RPM, VPWR
IAT (Intake air temperature) °C
  • Indicate the IAT
  • IAT sensor
V
  • IAT is 20°C {68°F}: Approx. 2.2 V
  • IAT is 30°C {86°F}: Approx. 1.8 V
IMRC (Variable tumble control) OFF/ON
  • ECT below 60°C {140°F} and engine speed below 3,250 rpm: ON
  • ECT above 60°C {140°F} while idling.: OFF
  • Variable tumble shutter valve actuator
  • The following PIDs

  • APP1, APP2, TP1, TP2, MAF, ECT, RPM
%
  • Indicate the variable tumble shutter valve opening ratio
INGEAR (Gears are engaged) OFF/ON MTX 
  • When the following conditions are satisfied: ON
    • Other than neutral
    • Clutch pedal released
  • Except above: OFF

    ATX 

    • R, D, M range: ON
    • Except above: OFF
 MTX 
  • CPP switch
  • Neutral switch
ATX 
  • TR switch
IVS (CTP condition) Idle/Off Idle
  • Idle: Idle
  • Racing: Off Idle
  • Perform applicable DTC troubleshooting.
KNOCKR (Knocking retard) °
  • Switch the ignition to ON: 0 °
  • idle (after warm up): 0 °
  • KS
LINEDES(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
LOAD (Engine load) %
  • idle (after warm up): Approx. 20 %
  • The following PIDs
    • MAP, IAT, MAF, RPM
LONGFT1 (Long term fuel trim) %
  • idle (after warm up): Approx.-15-15 %
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, MAP, ECT, O2S11, O2S12, RPM, BOO, COLP, BARO, VSS, VPWR
LPS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
MAF (Mass airflow) g/sec
  • Indicate the MAF
  • MAF sensor
V
  • Switch the ignition to ON: Approx. 0.7 V
  • Idle (after warm up): Approx. 1.3 V
MAP (Manifold absolute pressure) kPa, Bar, psi
  • Indicate the MAP
  • MAP sensor
V
  • Switch the ignition to ON: Approx. 2.6 V
  • Idle (after warm up): Approx. 1.3 V
MIL (Malfunction indicator lamp) OFF/ON
  • Idle, MIL illuminate: ON
  • Idle, MIL not illuminate: OFF
  • Perform applicable DTC troubleshooting.
MIL_DIS (Travelled distance since the MIL illuminated) km, ft, mi
  • Indicate the travelled distance since the MIL illuminated
  • Perform applicable DTC troubleshooting.
O2S11 (A/F sensor) A
  • Idle (after warm up): Approx. 0 mA
  • A/F sensor
O2S12 (HO2S) V
  • Idle (after warm up): 0-1.0 V
  • HO2S
OSS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
PCM_T (PCM temperature sensor) °C,°F
  • Indicate the PCM temperature
  • PCM temperature sensor
PCM_T_MAX (Maximum PCM temperature) °C,°F
  • Indicate the maximum PCM temperature
  • PCM
RO2FT1 (HO2S fuel trim) %
  • Idle (after warm up): Approx. 0
  • Perform applicable DTC troubleshooting.
RPM (Engine speed) RPM
  • Indicate the engine speed
  • CKP sensor
SCCS(1) (Cruise control switch) V
  • OFF switch pressed in: approx. 0 V
  • CANSEL switch pressed in: approx. 1.0 V
  • SET(-) switch pressed in: approx. 1.8 V
  • SET(+) switch pressed in: approx. 2.7 V
  • RESUME switch pressed in: approx. 3.4 V
  • ON switch pressed in: approx. 4.0 V
  • Except above: approx. 4.5
  • Cruise control switch
SEGRP (EGR control) -
  • Switch the ignition to ON: 0
  • idle (after warm up): 0
  • Engine speed is 1,187-4,200 rpm: 0-52
  • EGR valve
SEGRP DSD (Desired EGR valve position) %
  • Indicate the desired EGR valve position
  • EGR valve
  • The following PIDs
    • TP1, TP2, MAF, IAT, MAP, ECT, RPM, CPP/PNP, CPP, VSS
SHRTFT1 (Short term fuel trim) %
  • Idle (after warm up):-25-25 %
  • Perform applicable DTC troubleshooting.
SPARKADV (Ignition timing) °
  • Indicate the ignition timing
  • Ignition coil
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, IAT, ECT, RPM, KNOCKR, BOO, CPP/PNP, CPP
SSA/SS1(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
SSB/SS2(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
SSC/SS3(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
SSD/SS4(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
SSE/SS5(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
TCS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
Test (Test mode) OFF/ON
  • Test mode ON: ON
  • Test mode OFF: OFF
 -
TFT(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
TFTV(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
THM_1 (Thermostat monitor engine coolant temperature No. 1) °C,°F
  • Indicates engine coolant temperature No. 1 when thermostat monitoring is finished
  • Thermostat
THM_2 (Thermostat monitor engine coolant temperature No. 2) °C,°F
  • Indicates engine coolant temperature No. 2 when thermostat monitoring is finished
  • Thermostat
THM_MAX_2 (Thermostat monitor engine coolant temperature No. 2 max limit) °C,°F
  • Indicates upper limit of engine coolant temperature No. 2 for thermostat monitoring execution
  • Thermostat
THM_MIN_1 (Thermostat monitor engine coolant temperature No. 1 min limit) °C,°F
  • Indicates lower limit of engine coolant temperature No. 1 for thermostat monitoring execution
  • Thermostat
THM_MIN_2 (Thermostat monitor engine coolant temperature No. 2 min limit) °C,°F
  • Indicates lower limit of engine coolant temperature No. 2 for thermostat monitoring execution
  • Thermostat
TP REL (Relative throttle position) %
  • Accelerator pedal released: Approx. 12 %
  • Accelerator pedal depressed: Approx. 81 %
  • The following PIDs
    • TP1, TP2
TP1 (TP sensor No. 1) V
  • Accelerator pedal released: Approx. 1.1V
  • Accelerator pedal depressed: Approx. 4.5 V
  • TP sensor No. 1
%
  • Accelerator pedal released: Approx. 23%
  • Accelerator pedal depressed: Approx. 91 %
TP2 (TP sensor No. 2) V
  • Accelerator pedal released: Approx. 3.9 V
  • Accelerator pedal depressed: Approx. 0.5 V
  • TP sensor No. 2
%
  • Accelerator pedal released: Approx. 22 %
  • Accelerator pedal depressed: Approx. 91 %
TPCT (TP sensor voltage at CTP) V
  • Switch the ignition to ON: Approx. 0.5 V
  • TP sensor No. 1, No. 2
TR(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
TR_SENS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
TSS(3) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .)
VPWR (Battery positive voltage) V
  • Indicate the battery voltage
  • Battery
VSS (Vehicle speed) KPH, MPH
  • Indicate the vehicle speed
  • DSC HU/CM
VT ACT1 (Actual valve timing) °
  • idle (after warm up): Approx. 0 °
  • Racing (after warm up): 0-35 °
  • CMP sensor
VT DIFF1 (Difference between target valve timing and actual valve timing) °
  • idle (after warm up): approx. 0 °
  • CMP sensor
  • The following PIDs
    • RPM, LOAD, VT ACT1
VT DUTY1 (OCV control) %
  • idle (after warm up): Approx. 15 %
  • OCV
  • The following PIDs
    • APP1, APP2, TP1, TP2, MAF, ECT, RPM, CPP/PNP, CPP, VSS
(1) With cruise control system
(2) MTX
(3) ATX
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