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 (See RELAY INSPECTION ).

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.
  
  Fig 1: Locating DLC-2 Connector
  Courtesy 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.
  - 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, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC

PID/DATA monitor table (reference)

PID/DATA MONITOR CHART

Monitor item (Definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item

PCM terminal

AAT

°C

°F

Ignition switch at ON position: Indicate the ambient air temperature

IAT sensor

AC_REQ (A/C switch)

On/Off

A/C switch and fan switch ON at ignition switch ON: On A/C switch OFF at ignition switch ON: Off

A/C switch

1AC

ACCS (A/C relay)

On/Off

Ignition switch ON:Off A/C switch ON and fan switch ON at idle: On

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

ALTF (Generator field coil control duty value)

Ignition switch ON: 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

1AD

ALTT V (Generator output voltage)

Ignition switch ON: 0 V
Idle: Approx. 14.5 V⁽¹⁾ (E/L not operating)

Generator

1AB

AFR

Target air-oil ratio is displayed

HO2S

1Y
2D
2G
2J

AFR_ACT

Actual air-oil ratio is displayed

HO2S

1Y
2D
2G
2J

APP (Accelerator pedal position)

AP is released: 0%
AP is depressed: 100%

The following PIDs:
- APP1, APP2
Accelerator pedal position sensor

2A
3D

APP1 (Accelerator pedal position)

AP is released: 31.0-32.4%
AP is depressed: 69.8-81.8%

Accelerator pedal position sensor

AP is released: Approx. 1.6 V
AP is depressed: Approx. 3.9 V

APP2 (Accelerator pedal position)

AP is released: 20.2-21.4%
AP is depressed: 58.8-70.8%

Accelerator pedal position sensor

AP is released: Approx. 1.0 V
AP is depressed: Approx. 3.4 V

ARPMDES (Target engine speed)

RPM

No load: 700 RPM
E/L operating: 700 RPM
P/S operating: 700 RPM
A/C ON: 750 RPM

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

B+ (Battery positive voltage)

Ignition switch ON: B+

Main relay
Battery

BARO (Barometric pressure)

kPa, Bar, psi

Ignition switch ON: Indicate the atmospheric pressure

BARO sensor

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

1K 3T

BPA (Brake pressure applied switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

Brake switch

1K
3T

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 ON: On Idle: Off

Perform applicable DTC troubleshooting.

COLP (Refrigerant pressure switch - middle)

ON/OFF

Refrigerant pressure switch (middle) ON⁽²⁾ at idle: ON
Refrigerant pressure switch (middle) OFF⁽³⁾ at idle: OFF

Refrigerant pressure switch

CPP (Clutch pedal position)

On/Off

Clutch pedal depressed: On
Clutch pedal released: Off

CPP switch

CPP/PNP (Shift lever position)

Drive/Neutral

Neutral position: Neutral Others: Drive

Neutral switch

DTCCNT (Number of DTC detected)

Perform applicable DTC troubleshooting.

ECT (Engine coolant temperature)

°C

°F

Ignition switch at ON position:
Indicate the ECT

ECT sensor

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.

2D
2G
2J

EQ_RAT11_DSD (Front oxygen sensor)

Idling after warm-up: Approx. 1

Perform applicable DTC troubleshooting.

2D
2G
2J

ETC_ACT (Electronic throttle control actual)

Indicate the desired TP by angle

Perform applicable DTC troubleshooting.

3J
3M

ETC_DSD (Electronic throttle control desired)

Indicate the desired TP by percent

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

3J
3M

Indicate the desired TP by angle

EVAPCP (Purge solenoid valve duty value)

Ignition switch ON: 0%
Idle: 0%

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

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

FIA (Fuel injection amount)

mg/cylinder

Indicate the fuel injection amount.

Fuel injector
Injector driver module

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

1A
1B

FUEL_PRES

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

Fuel pressure sensor

FUEL_PRES_V

Idle: Approx. 1.4 V

Fuel pressure sensor

FUELSYS (Fuel system status)

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

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

The following PIDs:
- IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, PSP, ACSW, 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, ACSW

4AD

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 at ON position:
Indicate the IAT

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

INGEAR (Load/no load condition)

On/Off

CPP or CPP/PNP is On: Off Others: On

Perform applicable DTC troubleshooting.

1H
1W

IVS (CTP condition)

Idle/Off Idle

APP closed: Idle
Others: Off Idle

Perform applicable DTC troubleshooting.

3J
3M

KNOCKR (Knocking retard)

Ignition switch ON: 0° Idle: 0°

Knock sensor

2P
2S

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.

3V
3Y

LDP_MON (EVAP system leak detection pump monitoring current)

Indicate the EVAP system leak detection pump monitoring current

Perform applicable DTC troubleshooting.

3V
3Y

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.

3V
3Y

LDP_VSLDV (EVAP system small leak detection value)

mA/sec

Indicate the EVAP control system vary small leak detection value

Perform applicable DTC troubleshooting.

3V
3Y

LOAD (Engine load)

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

MAF sensor

LONGFT1 (long term fuel trim)

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

Perform applicable DTC troubleshooting.

MAF (Mass airflow)

g/s

Ignition switch ON: 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 sensor

Ignition switch ON: Approx. 0.7 V
Idle (after warm up): 1.15-1.28 V

MAP (Manifold absolute pressure)

kPa, Bar, psi

Ignition switch at ON position:
Indicate the atmospheric pressure

MAP sensor

Ignition switch ON
Manifold absolute pressure Approx.
102 kPa: Approx. 1.9 V

Idle Manifold absolute pressure Approx. 30 kPa: Approx. 0.7 V

MIL (Malfunction indicator lamp)

On/Off

Ignition switch ON: 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.

NUMKEYS (Number of keys stored in module)

Indicate the number of keys stored in module

O2S11 (Front oxygen sensor)

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

HO2S (front)

2D
2G
2J

O2S12
(Rear oxygen sensor)

Idle (after warm up): 0-1.0 V
Acceleration (after warm up):
0.5-1.0 V
Deceleration (after warm up):
0-0.5 V

HO2S (rear)

PSP (Power steering pressure switch)

High/Low

Steering wheel in straight ahead position: Low
Others: High

PSP switch

RFCFLAG (Readiness function code)

Learnt/Not Learnt

Before running PCM adaptive memory procedure drive mode: Not Learnt
After running PCM adaptive memory procedure drive mode: Learnt

Run PCM adaptive memory procedure drive mode.

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: 700-800 RPM

CKP sensor

SCCS (Speed control command switch)

Press ON/OFF: Approx. 0 V
Press CANCEL: Approx. 1.2 V
Press SET/COAST: Approx. 3.2 V
Press RES/ACCEL: Approx. 4.2 V
Others: Approx. 5.0 V

Cruise control switch

SEGRP (EGR valve (stepping motor) position)

No. of step

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

SELTESTDTC (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. 8°

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 ON
APP is released: Approx. 5%
APP is depressed: Approx. 46 %

TP sensor

3J
3M

TP1 (TP sensor 1)

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

TP sensor

Ignition switch ON
APP is released: 0.4-0.6 V
APP is depressed: 4.25-4.75 V

TP2 (TP sensor 2)

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

TP sensor

Ignition switch ON
APP is released: 4.4-4.6 V
APP is depressed: 0.25-0.75 V

TPCT (Lowest closed throttle voltage)

Indicate the voltage of the closed TP sensor

TP sensor

3J
3M

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

VT DUTY1

Idle: Approx. 11.5%

The following PIDs:
- TP, ECT, RPM
OCV

VTC

On/Off

Variable swirl shutter valve switch ON: On

Variable swirl shutter valve switch

Variable swirl shutter valve switch OFF: Off

WGC

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

Wastegate control solenoid valve

Fully closed: 0 %

⁽¹⁾	Calculated value; differs from terminal voltage

⁽²⁾	Refrigerant pressure switch (middle) turns off when the refrigerant pressure is 1.26-1.49 MPa {12.9-15.1 kgf/cm⁶ , 184-214 psi}

⁽³⁾	Refrigerant pressure switch (middle) turns on when the refrigerant pressure is 1.69-1.84 MPa {17.3-18.7 kgf/cm² , 247-265 psi}