Using the M-MDS

NOTE:

PIDs for the following parts are not available on this model. Perform the specific inspections for the following parts:
- CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION .)
- Main relay

Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON position.
Measure the PID value.
- If PID value is not within the specification, follow the instructions in the "Inspection item" 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.
  - For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage.
  - The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
    
    ACCS, ALTF, ARPMDES, FAN_DUTY, EVAPCP, FP, FUELPW, GENVDSD, HTR11, HTR12, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC
    
    Fig 1: Identifying Data Link Connector-2
    Courtesy of MAZDA MOTORS CORP.

PID/DATA MONITOR TABLE

Monitor item (Definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item

PCM terminal

AAT (Ambient air temperature)

°C

°F

Ignition switch to the ON position: Indicate the ambient air temperature

MAF/IAT sensor

AC_REQ (Refrigerant pressure switch (high, low))

On/Off

Refrigerant pressure is more than the specification or less than the specification. (Refrigerant pressure switch (high, low) is off.): Off Except above: On

Refrigerant pressure switch (high, low)

1AU

ACCS (A/C relay)

On/Off

A/C relay is ON: On
A/C relay is OFF: Off

The following PIDs:
- RPM, TP, ECT
A/C relay

AFR (Air/fuel ratio)

Target air-oil ratio is displayed

HO2S

2Q
2Z
2AC
2AD

AFR_ACT (Actual air/fuel ratio)

Actual air-oil ratio is displayed

HO2S

2Q
2Z
2AC
2AD

ALTF (Generator field coil control duty value)

Ignition switch to the ON position: 0%
Idle: 0-100%
Just after A/C switch ON and fan switch ON at idle: Duty value rises

The following PIDs:
- IAT, ECT, RPM, VPWR, ALTT V
Generator

2AI

ALTT V (Generator output voltage)

Idle (no E/L): Approx. 14 V (This is an internal calculation value and differs from the terminal voltage.)

Generator

2AJ

APP (Accelerator pedal position)

Accelerator pedal is released: 0%
Accelerator pedal is depressed: 100%

The following PIDs:
- APP1, APP2
APP sensor

1Y
1AC

APP1 (Accelerator pedal position)

Accelerator pedal is released: 31.0-32.4%
Accelerator pedal is depressed: 69.8-81.8%

APP sensor

Accelerator pedal is released: 1.56-1.65 V
Accelerator pedal is depressed: 3.65-3.93 V

APP2 (Accelerator pedal position)

Accelerator pedal is released: 20.2-21.4%
Accelerator pedal is depressed: 58.8-70.8%

APP sensor

1AC

Accelerator pedal is released: 1.01-1.10 V
Accelerator pedal is depressed: 3.10-3.38 V

ARPMDES (Target engine speed)

RPM

Shift position: P or N

No load: 700 rpm
E/L operating: 700 rpm
P/S operating: 700 rpm
A/C ON: 700 rpm

The following PIDs:
- IAT, RPM, MAP, ECT, MAF, TP, INGEAR, PSP, ALTT V
CKP sensor

BARO (Barometric pressure)

kPa, Bar, psi

Ignition switch is ON at sea level: Approx. 101 kPa {1.01 Bar, 14.6 psi}

BARO sensor

Ignition switch is ON at sea level: Approx. 4.0 V

BAT

°C

Boost air temperature is displayed

MAP/boost air temperature sensor

BAT_V

Boost air temperature 20 °C {68 °F}: 2.4-2.6 V

MAP/boost air temperature sensor

Boost air temperature 30 °C {86 °F}: 1.7-1.9 V

BOO (Brake switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

Brake switch NO. 1/NO. 2

1AB
1AF

BPA (Brake pressure applied switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

Brake switch NO. 1/NO. 2

1AB
1AF

CATT11_DSD (Estimated catalytic converter temperature)

°C

°F

Indicate the estimated catalytic converter temperature

Perform applicable DTC troubleshooting.

CHRGLP (Generator warning light)

On/Off

Ignition switch to the ON position: On
Idle: Off

Perform applicable DTC troubleshooting.

COLP (Refrigerant pressure switch (middle))

ON/OFF

Refrigerant pressure is more than the specification. (Refrigerant pressure switch (middle) is on.): On Refrigerant pressure is less than the specification. (Refrigerant pressure switch (middle) is off.): Off

Refrigerant pressure switch (middle)

DTCCNT (Number of DTC detected)

Indicates number of DTC

Perform applicable DTC troubleshooting.

ECT (Engine coolant temperature)

°C

°F

Ignition switch to the ON position: Indicate the ECT

ECT sensor

2AH

ECT 20 °C {68 °F}: 3.04-3.14 V
ECT 60 °C {140 °F}: 1.29-1.39 V

EQ_RAT11 (Equivalence ratio (lambda))

Idling after warm-up: Approx. 1

Perform applicable DTC troubleshooting.

EQ_RAT11_DSD (Front oxygen sensor)

Idling after warm-up: Approx. 1

Perform applicable DTC troubleshooting.

ETC_ACT (Electronic throttle control actual)

Indicate the desired TP by angle

Perform applicable DTC troubleshooting.

2AK
2AL

ETC_DSD (Electronic throttle control desired)

Indicate the desired TP by percent

The following PIDs:
- APP1, APP2, ETC_ACT
TP sensor

2AK
2AL

Indicate the desired TP by angle

EVAPCP (Purge solenoid valve duty value)

Ignition switch to the ON position: 0%
Idle: 0%

The following PIDs:
- IAT, RPM, ECT, MAF, O2S11, BARO, INGEAR, VPWR
Purge solenoid valve

2AB

FAN_DUTY

ECT less than 98 °C {208 °F}: 0%
ECT 100 °C {212 °F}: 30%
ECT 106 °C {223 °F}: 70%
ECT 110 °C {230 °F}: 100%

Fan control module

1R
1AE

FIA (Fuel injection amount)

Indicate the fuel injection amount.

Fuel injector
Fuel Injector relay

FLI (Fuel level)

Fuel gauge level F: Approx. 100%
Fuel gauge level E: Approx. 0%

Perform applicable DTC troubleshooting.

FP (Fuel pump relay)

On/Off

Idle: On
Cranking: On

The following PIDs:
- RPM
Fuel pump relay

FP_Hi_PRES

On/Off

Spill valve control solenoid valve work: On
Spill valve control solenoid valve don't work: Off

High pressure fuel pump

2F
2G

FUEL_PRES

Idle: Approx. 3 MPa
Load 60 % or more: Approx. 11.5 MPa

Fuel pressure sensor

FUEL_PRES_V

Ignition switch to the ON position: Approx. 1.1 V
Idle: Approx. 1.7 V

Fuel pressure sensor

FUELPW (Fuel injector duration)

sec

Idle: Approx. 2.0 ms

The following PIDs:
- ECT, IAT, RPM, TP, MAF, O2S11, O2S12, MAP, VSS, TR, BOO, AC_REQ, COLP, VPWR

2AZ
2BB
2BC
2BD

FUELSYS (Fuel system status)

OL/CL/OL-Drive/OL-Fault/CL-Fault

Ignition switch to the ON position:
OL_Drive
Idle (after warm up): CL

The following PIDs:
- IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, PSP, VPWR, ALTT V
Fuel injector

GENVDSD (Generator voltage desired)

Idle: Approx. 13.83 V⁽¹⁾(E/L not operating)

Perform applicable DTC troubleshooting.

HTR11 (HO2S heater (front))

On/Off

Idle (after warm up): On <==>Off

The following PIDs:

IAT, MAF, TP, ECT, RPM

HTR12 (HO2S heater (rear))

On/Off

Idle: On
Engine speed is above 4,000 rpm: Off

The following PIDs:
- IAT, MAF, ECT, RPM, ACSW

IAT (Intake air temperature)

°C

°F

Ignition switch to the ON position position: Indicate the IAT

MAF/IAT sensor

IAT 20 °C {68 °F}: 2.4-2.6V
IAT 30 °C {86 °F}: 1.7-1.9V

IMRC (Variable swirl solenoid valve)

On/Off

Engine speed is below Approx. 3,750 rpm and ECT is below 60 °C {140 °F}: On
Others: Off

The following PIDs:
- TP, ECT, RPM
Variable swirl solenoid valve

2AS

INGEAR (Load/no load condition)

On/Off

Driving range: On
Except above: Off
Others: On

Perform applicable DTC troubleshooting.

IVS (CTP condition)

Idle/Off Idle

APP closed: Idle
Others: Off Idle

Perform applicable DTC troubleshooting.

2AK
2AL

KNOCKR (Knocking retard)

Ignition switch to the ON position: 0°
Idle: 0°

2U
2V

LDP_EVAPCP (EVAP system leak detection pump detect incorrect purge flow)

Indicate the EVAP control system incorrect purge flow detection value

Perform applicable DTC troubleshooting.

LDP_IDL (EVAP system leak detection pump idle current)

Indicate the EVAP system leak detection pump idle current

Perform applicable DTC troubleshooting.

LDP_MON (EVAP system leak detection pump monitoring current)

Indicate the EVAP system leak detection pump monitoring current

Perform applicable DTC troubleshooting.

LDP_REF (EVAP system leak detection pump reference current)

Indicate the EVAP system leak detection pump reference current

Perform applicable DTC troubleshooting.

LDP_SLDV (EVAP system small leak detection value)

Indicate the EVAP control system small leak detection value

Perform applicable DTC troubleshooting.

LDP_VSL_FV⁽¹⁾ (EVAP system very small leak detection fail value)

mA/sec

Indicate EVAP system very small leak detection fail value

Perform applicable DTC troubleshooting.

LDP_VSL_SV⁽¹⁾ (EVAP system very small leak detection safe value)

mA/sec

Indicate EVAP system very small leak detection safe value

Perform applicable DTC troubleshooting.

LDP_VSLDV⁽¹⁾ (EVAP system small leak detection value)

mA/sec

Indicate the EVAP control system vary small leak detection value

Perform applicable DTC troubleshooting.

LOAD (Engine load)

Ignition switch to the ON position: 0%
Idle (after warm up): 17.1-18.5% Engine speed is 2,500 rpm: 14.2-15.2

MAF/IAT sensor

LONGFT1 (long term fuel trim)

Idle (after warm up):-14-14%

Perform applicable DTC troubleshooting.

MAF (Mass airflow)

g/s

Ignition switch to the ON position:
Approx. 0 g/s
Idle (after warm up): 2.72-2.94 g/s Engine speed is 2,500 rpm: 8.00-8.66

MAF/IAT sensor

1AK

Ignition switch to the ON position:
Approx. 0.7 V
Idle (after warm up): Approx. 1.3 V

MAP (Manifold absolute pressure)

Ignition switch to the ON position:
Indicate the atmospheric pressure

MAP sensor
MAF/IAT sensor

2AG

Ignition switch to the ON position:
Approx. 1.9 V
Idle (after warm up): Below 1.0 V

MIL (Malfunction indicator lamp)

On/Off

Ignition switch to the ON position:
On
Idle: Off

Perform applicable DTC troubleshooting.

MIL_DIS (Traveled distance since the MIL illuminated)

mile

No DTC: 0 km {0 mile}
DTC detected: Not 0 km {0 mile}

Perform applicable DTC troubleshooting.

O2S11 (Front oxygen sensor)

Idle (after warm up):-1.0-1.0 A
Deceleration (after warm up): 0.25 A or more

HO2S (front)

2Z
2AC
2AD

O2S12 (Rear oxygen sensor)

Idle: 0-1 V

HO2S (rear)

PSP (Power steering pressure switch)

High/Low

Steering wheel in straight ahead position: Low
Others: High

PSP switch

RO2FT1 (Rear oxygen sensor fuel trim)

Idle after warm-up: Approx. 0.2

The following PID
- O2S12

RPM (Engine speed)

RPM

No load: 650-750 rpm
E/L operating: 650-750 rpm
P/S operating: 650-750 rpm
A/C ON: 650-750 rpm

CKP sensor

SCCS (Speed control command switch)

Press ON/OFF: Approx. 0 V
Press CANCEL: Approx. 1.1 V
Press SET/COAST: Approx. 3.1 V
Press RES/ACCEL: Approx. 4.2 V
Others: Approx. 5.0 V

Cruise control switch

1AQ

SEGRP (EGR valve (stepping motor) position)

Idle: 0 step
Cranking: 0-60 steps

The following PIDs:
- MAF, TP, ECT, RPM, VSS
EGR valve

SEGRP DSD (Desired EGR valve (stepping motor) position)

Idle: 0%

The following PIDs:
- MAF, TP, ECT, RPM, VSS

SELTEST DTC (DTC of KOEO/KOER self-test)

Perform applicable DTC troubleshooting.

SHRTFT1 (Short term fuel trim [front HO2S])

Idle (after warm up): Approx.-30-25%

Perform applicable DTC troubleshooting.

SHRTFT12 (Short term fuel trim)

Idle (after warm up): Approx.-30-25%

Perform applicable DTC troubleshooting.

SPARKADV (Ignition timing)

°(BTDC)

Idle: BTDC Approx. 10°

The following PIDs:
- MAF, TP, ECT, RPM, INGEAR, PSP, ACSW, VPWR
Ignition timing

test (Test mode)

On/Off

TIRESIZE (Tire revolution per mile)

rev/mile

Indicate the tire circumference length

TP REL (Relative TP)

Ignition switch to the ON position
APP is released: Approx. 5%
APP is depressed: Approx. 46%

TP sensor

2AK
2AL

TP1 (TP sensor 1)

Ignition switch to the ON position
APP is released: Approx. 15%
APP is depressed: Approx. 55%

TP sensor

2AK

Ignition switch to the ON position
APP is released: 0.4-0.6 V
APP is depressed: 4.7-4.9 V

TP2 (TP sensor 2)

Ignition switch to the ON position
APP is released: Approx. 15%
APP is depressed: Approx. 56%

TP sensor

2AL

Ignition switch to the ON position
APP is released: 4.4-4.6 V
APP is depressed: 0.1-0.3 V

TPCT (Lowest closed throttle voltage)

Ignition switch to the ON position: Approx 1.0 V

TP sensor

2AK
2AL

VPWR (Battery positive voltage)

Indicate the battery voltage

Battery

1BA

VSS (Vehicle speed)

KPH

MPH

Indicate the vehicle speed

Perform applicable DTC troubleshooting.

VT ACT1 (Actual valve timing)

Idle: Approx. 0°

The following PIDs:
- TP, ECT, RPM
OCV

VT DIFF1 (Difference between actual valve timing and target valve timing)

Idle: Approx. 0°

The following PIDs:
- TP, ECT, RPM
OCV

2AF

VT DUTY1

Idle: Approx. 11.5%

The following PIDs:
- TP, ECT, RPM
OCV

2AF

VTC

On/Off

Variable swirl shutter valve switch ON: On

Variable swirl shutter valve switch

2AE

Variable swirl shutter valve switch OFF: Off

WGC

Racing with the accelerator pedal fully depressed: 10-100%

Wastegate control solenoid valve

2AA

Fully closed: 0%

⁽¹⁾	California emission regulation applicable model