Using SST (M-MDS)

NOTE:

PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
- CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION ).
- Main relay (See RELAY INSPECTION .)

Connect the SST (M-MDS) to the DLC-2.
Turn the ignition switch to ON position.
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.
    
    Fig 1: Identifying Data Link Connector 2
    Courtesy of MAZDA MOTORS CORP.
  - The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
    
    ACCS, ALTF, ARPMDES, EVAPCP, FAN_DUTY, FP, FUELPW1, GENVDSD, HTR11, HTR12, HTR13(California emission regulation applicable model), IMRC, IMTV, INJ_1, INJ_2, INJ_3, INJ_4, LPS(LF ATX), SEGRP, SOL 12S(LF ATX), SOL 23S(LF ATX), SSA/SS1(LF ATX), SSB/SS2(LF ATX), SSC/SS3(LF ATX), test, VT DUTY1 Wt

PID/DATA monitor table (reference)

PID/DATA MONITOR TABLE

Monitor item (Definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item(s)

PCM terminal

AAT (Ambient air temperature)

°C

°F

Ignition switch at ON position: Indicate the ambient air temperature

IAT sensor

AC_REQ (Refrigerant pressure switch (high, low)l)

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⁽⁸⁾
1AP⁽⁹⁾

ACCS (A/C relay)

On/Off

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

Following PIDs: RPM, TP, ECT, TR
A/C relay

1I⁽⁸⁾
1AN⁽⁹⁾

AFR (Air fuel ratio)

Ignition switch at ON position: Indicate the air fuel ratio⁽⁴⁾

Following PIDs: O2S11, O2S12, O2S13⁽¹⁾
Fuel injector

AFR_ACT (Actual air fuel ratio)

Ignition switch at ON position: Indicate the actual air fuel ratio

Following PIDs: O2S11, O2S12, O2S13⁽¹⁾
Fuel injector

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

Following PIDs: IAT, ECT, RPM, VPWR, ALTT V
Generator

2AI⁽⁸⁾
2AQ⁽⁹⁾

ALTTV (Generator output voltage)

Ignition switch ON: 0 V
Idle:Approx. 14.9 V(E/L not operating)

Generator

2AJ⁽⁸⁾
2AM⁽⁹⁾

APP (Accelerator pedal position)

APP released: 0%
APP open: 100%

Following PIDs: APP1, APP2
APP sensor

1AC⁽¹⁾
1AP⁽¹⁾
1Y⁽⁹⁾
1AL⁽⁹⁾
1AO⁽¹⁰⁾
1AP⁽¹⁰⁾

APP1 (APP sensor 1)

APP released: 31.0-32.4%
APP open: 69.8-81.8%

APP sensor

1AP⁽⁸⁾
1Y⁽⁹⁾

APP released: 1.55-1.62 V
APP depressed: 3.49-4.09 V

APP2 (APP sensor 2)

APP released: 20.2-21.4%
APP depressed: 58.8-70.8%

APP sensor

1AC⁽¹⁾
1AL⁽⁹⁾
1AO⁽¹⁰⁾

APP released: 1.01-1.07 V
APP depressed: 2.94-3.54 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

Following PIDs: IAT, RPM, MAP, ECT, MAF, TP, INGEAR, TR, PSP, ALTTV
IAC valve
CKP sensor

BARO (Barometric pressure)

Ignition switch ON: Indicate the atmospheric pressure

BARO sensor

Ignition switch ON (at sea level): Approx. 4.0 V

BOO (Brake switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

Brake switch

1AB⁽⁸⁾
1AU⁽⁹⁾

BPA (Brake pressure applied switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

Brake switch

CATT11_DSD (Desired catalyst temperature bank one, sensor one)

°C

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 ⁽⁵⁾ at idle: ON
Refrigerant pressure switch (middle) OFF⁽⁶⁾ at idle: OFF

Refrigerant pressure switch

U⁽⁸⁾
1R⁽⁹⁾

CPP⁽³⁾ (Clutch pedal position)

On/Off

Clutch pedal depressed: On
Clutch pedal released: Off

CPP switch

CPP/PNP⁽³⁾ (Shift lever position)

Drive/Neutral

Neutral position: Neutral
Others: Drive

Neutral switch

DTCCNT (Number of DTC detected)

Perform applicable DTC troubleshooting.

DWN SW⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

ECT (Engine coolant temperature)

°C

°F

ECT 20°C {68°F}: 20°C {68°F}
ECT 60°C {140°F}: 60°C {140°F}

ECT sensor

2AH⁽⁸⁾
2AK⁽⁹⁾

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.

2Z⁽¹⁾, ⁽⁷⁾
2AC⁽⁷⁾
2AD⁽¹⁾, ⁽⁷⁾

EQ_RAT11_DSD (Desired equivalence ratio (lambda))

Idling after warm-up: Approx. 1

Perform applicable DTC troubleshooting.

2Z⁽¹⁾, ⁽⁷⁾
2AC⁽⁷⁾
2AD⁽¹⁾, ⁽⁷⁾

ETC_ACT (Electronic throttle control actual)

Indicate the desired TP by angle

Perform applicable DTC troubleshooting.

2AL⁽⁸⁾
2AK⁽⁸⁾
2I⁽⁹⁾
2M⁽⁹⁾

ETC_DSD (Electronic throttle control desired)

Indicate the desired TP by percent

Following PIDs:APP1, APP2, ETC_ACT.
TP sensor

Indicate the desired TP by angle

EVAPCP (Purge solenoid valve duty value)

Ignition switch ON: 0%
Idle: 0%

Following PIDs: IAT, RPM, ECT, MAF, O2S11, INGEAR, TR, VPWR.

2C⁽⁸⁾
2AN⁽⁹⁾

FAN_DUTY (Cooling fan control)

ECT 108 C {226 F} or more: 90%
ECT less than 100°C {212°F}: 0%

Following PIDs: RPM, TP, ECT, COLP, TEST.
Fan control module

1Y⁽¹⁾
1W⁽⁹⁾
1R⁽¹⁰⁾

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

Ignition switch ON: Off
Idle: On
Cranking: On

Following PIDs: RPM
Fuel pump relay

1H⁽⁸⁾
1AR⁽⁹⁾

FUELPW (Fuel injector duration)

sec

Ignition switch ON: 0 ms
Idle (after warm up): approx. 2.5 ms

Following PIDs: IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, TR, PSP, VPWR, ALTT V
Fuel injector

2AZ
2BB
2BC
2BD

FUELSYS (Fuel system status)

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

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

Following PIDs: IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, TR, PSP, VPWR, ALTT V
Fuel injector

GEAR⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

GENVDSD (Generator voltage desired)

Ignition switch ON: 0 V Idle: Approx. 14.9 V (E/L not operating)

Perform applicable DTC troubleshooting

HTM_CNT⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

HTM_DIS⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

HTR11 (HO2S heater (front))

On/Off

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

Following PIDs: IAT, MAF, TP, ECT, RPM

2BG⁽⁸⁾
2G⁽⁹⁾

HTR12 (HO2S heater (middle⁽¹⁾, rear⁽⁷⁾))

On/Off

Ignition switch ON: Off (HO2S heater not operating)
Idle: On (HO2S heater operating)

Following PIDs: IAT, MAF, ECT, RPM

2BF⁽¹⁾
2C⁽⁹⁾
2BE⁽¹⁰⁾

HTR13⁽¹⁾ (HO2S heater (rear))

On/Off

Ignition switch ON: Off (HO2S heater not operating)
Idle: On (HO2S heater operating)

Following PIDs: IAT, MAF, ECT, RPM

2BE

IAT (Intake air temperature)

°C

°F

Indicate the IAT.

IAT sensor

1AT⁽⁸⁾
1AH⁽⁹⁾

IAT 0°C {32°F}: Approx. 3.43 V
IAT 20°C {68°F}: Approx. 2.38 V
IAT 40°C {104°F}: Approx. 1.49 V

IMRC (Variable tumble solenoid valve)

On/Off

Engine speed is less than approx. 3,750 rpm: On
Others: Off

Following PIDs: TP, ECT, RPM
Variable tumble solenoid valve

2I⁽⁸⁾
2AI⁽⁹⁾

IMTV (Variable Intake air control solenoid valve)

On/Off

Engine speed is less than approx. 4,500 rpm: On
Others: Off

Following PIDs: RP
Variable intake air solenoid valve

2J⁽⁸⁾
2AJ⁽⁹⁾

INGEAR (Load/no load condition)

On/Off

MTX
CPP or CPP/PNP is ON: Off
Others: On
ATX
P, N position: Off
Others: On

Perform applicable DTC troubleshooting.

1D⁽³⁾
1X⁽³⁾
1S⁽⁹⁾
1AH⁽¹¹⁾

IVS (CTP condition)

Idle/Off Idle

CTP: Idle
Others: Off Idle

Perform applicable DTC troubleshooting.

KNOCKR (Knocking retard)

Ignition switch ON: 0°
Idle: 0°

Knock sensor

2U⁽⁸⁾
2V⁽⁸⁾
2Q⁽⁹⁾
2R⁽⁹⁾

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 small leak detection value)

mA/sec

Indicate the EVAP control system vary small leak-fail value

Perform applicable DTC troubleshooting.

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

mA/sec

Indicate the EVAP control system vary small leak-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.

LINEDES⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

LOAD (Engine load)

Ignition switch ON: 0%
Idle (after warm up): approx.19%

MAF sensor

LONGFT1 (long term fuel trim)

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

Perform applicable DTC troubleshooting

LPS⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

MAF (Mass airflow)

g/sec

Ignition switch ON: approx. 0 g/s
Idle (after warm up): approx. 1.5 g/s

MAF sensor

1AK⁽⁸⁾
1AC⁽⁹⁾

Ignition switch ON: approx. 0.7 V
Idle (after warm up): approx. 1.3 V

MAP (Manifold absolute pressure)

Ignition switch ON (at sea level): approx. 101 kPa {29.8 inHg}

MAP sensor

2AG⁽⁸⁾
2AL⁽⁹⁾

Ignition switch ON (at sea level): approx. 4.1 V

MIL (Malfunction indicator lamp)

On/Off

Ignition switch ON: On Idle: Off

Perform applicable DTC troubleshooting.

MIL_DIS (Travelled distance since the MIL illuminated)

km, mile

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

Perform applicable DTC troubleshooting.

MNL SW⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

O2S11 (Front oxygen sensor)

Idle (After warm up): approx. 0 mA

HO2S (front).

2Z⁽¹⁾, ⁽⁷⁾
2AC⁽⁷⁾
2AD⁽¹⁾, ⁽⁷⁾

O2S12 (Middle⁽²⁾, rear⁽⁷⁾ oxygen sensor)

Idle (After warm up): approx. 0.6 V

HO2S (Middle⁽¹⁾, rear⁽⁷⁾).

2R⁽¹⁾
2AH⁽⁹⁾
2Q⁽¹⁰⁾

O2S13⁽¹⁾ (Rear oxygen sensor)

Idle (After warm up): approx. 0.6 V

HO2S (Rear).

OSS⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

RFCFLAG (Readness function code)

Not Learnt/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. -0.03-0.03

Perform applicable DTC troubleshooting.

RPM (Engine speed)

RPM

Indicate the engine speed

CKP sensoR

2W⁽⁸⁾
2U⁽⁹⁾

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)

Ignition switch ON: 0 step Idle: 0 step
Cranking: 0-60 steps

Following PIDs: MAF, TP, ECT, RPM, VSS
EGR valve

2G⁽⁸⁾
2H⁽⁸⁾
2K⁽⁸⁾
2L⁽⁸⁾
2AR⁽⁹⁾
2AU⁽⁹⁾
2AV⁽⁹⁾
2AY⁽⁹⁾

SEGRP DSD (Desired SEGRP valve position)

Idle: 0%

Following PIDs: MAF, TP, ECT, RPM, VSS

2G⁽⁸⁾
2H⁽⁸⁾
2K⁽⁸⁾
2L⁽⁸⁾
2AR⁽⁹⁾
2AU⁽⁹⁾
2AV⁽⁹⁾
2AY⁽⁹⁾

SHRTFT1 (Short term fuel trim)

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

Perform applicable DTC troubleshooting.

SHRTFT12 (Short term fuel trim bank 1 sensor 2)

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

Perform applicable DTC troubleshooting

SHRTFT13⁽¹⁾ (Short term fuel trim bank 1 sensor 3)

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

Perform applicable DTC troubleshooting

SOL12S⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

SOL 23S⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

SPARKADV (Ignition timing)

Ignition switch ON: BTDC 0°
Idle: BTDC approx. 10°

Following PIDs: MAF, TP, ECT, RPM, INGEAR, TR, PSP, VPWR
Ignition timing

2AP⁽⁸⁾
2AW⁽⁸⁾
2AX⁽⁸⁾
2BA⁽⁸⁾
2BE⁽⁹⁾
2BF⁽⁹⁾
2BG⁽⁹⁾
2BH⁽⁹⁾

SSA/SS1⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

SSB/SS2⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

SSC/SS3⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

test (Test mode)

On/Off

TFT⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

TFTV⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

THOP⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

TIRESIZE (Tire Size (rev / mile))

rev/mile

Indicate the tire circumference length

TPREL (Relative throttle position)

APP released: Approx. 10%
APP depressed: Approx. 93%

TP sensor

TP1 (TP)

APP released: 8-12%
APP depressed: 88-94%

TP sensor

2AK⁽⁸⁾
2M⁽⁹⁾

APP released: 0.4-0.6 V
APP depressed: 4.4-4.7 V

TP2 (TP)

APP released: 88-92%
APP depressed: 6-12%

TP sensor

2AL⁽⁸⁾
2I⁽⁹⁾

APP released: 4.4-4.6 V
APP depressed: 0.3-0.6 V

TPCT (TP sensor voltage at CTP)

Approx. 0.5 V

TP sensor

2AK⁽⁸⁾
2AL⁽⁸⁾
2M⁽⁹⁾
2I⁽⁹⁾

TR⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

TR_SENS⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

TSS⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

UP SW⁽²⁾

(See PID/DATA MONITOR INSPECTION .)

VPWR (Module supply voltage)

Indicate the Module supply voltage.

Battery

Vref⁽⁷⁾ (Battery voltage)

Indicate the Module supply voltage.

Battery

VSS (Vehicle speed)

KPH, MPH

Vehicle speed 20 kph {12 mph}: 20kph{12mph}
Vehicle speed 40 kph {25 mph}: 20 kph {12 mph}

Perform applicable DTC troubleshooting

VT ACT1 (Actual valve timing)

Idle: Approx. 0°

Following PIDs: TP, ECT, RPM
OCV

2E⁽⁸⁾
2AF⁽⁹⁾

VT DIFF1 (Difference between target and actual valve timing)

Idle: Approx. 0°

Following PIDs: TP, ECT, RPM
OCV

2E⁽⁸⁾
2AF⁽⁹⁾

VT DUTY1 (Oil control valve duty value)

Idle: Approx. 11.5%

Following PIDs: TP, ECT, RPM
OCV

2E⁽⁸⁾
2AF⁽⁹⁾

VTC (Variable tumble shutter valve control)

On/Off

Indicate the condition of the variable tumble shutter valve switch

Following PIDs: IMRC
Variable tumble shutter valve switch

2AE

⁽¹⁾	California emission regulation applicable model

⁽²⁾

LF ATX

⁽³⁾

MTX

⁽⁴⁾	Calculated value; differs from terminal voltage

⁽⁵⁾	Refrigerant pressure switch (middle) turns off when the refrigerant pressure is 1.26-1.49 MPa {12.9-15.1 kgf/cm6, 184-214psi}

⁽⁶⁾	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}

⁽⁷⁾	Except for California emission regulation applicable model

⁽⁸⁾	LF MTX, L3, and California emission regulation applicable model with LF ATX

⁽⁹⁾	Except for California emission regulation applicable model with LF ATX

⁽¹⁰⁾	Except for California emission regulation applicable model with LF MTX, L3

⁽¹¹⁾	California emission regulation applicable model with LF ATX