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Using SST (WDS or Equivalent)

NOTE:
  1. Connect the SST  (WDS or equivalent) to the DLC-2.
    Fig 1: Identifying DLC-2 Location
    G03635865Courtesy of MAZDA MOTORS CORP.
  2. Turn the ignition switch to ON position.
  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, ALTF, ARPMDES, EVAPCP, FAN_DUTY, FP, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, IMTV, INJ_1, INJ_2, INJ_3, INJ_4, LPS, SEGRP, SSA/SS1, SSB/SS2, SSC/SS3, SSD/SS4, SSE_SS5, VT ACT1, VT DUTY1 Wt
ITEM AND CONNECTION SPECIFICATION CHART

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 (low pressure switch, high pressure switch)) On/Off
  • Refrigerant pressure is more than the specification or less than the specification. (Refrigerant pressure switch (low pressure switch, high pressure switch) is off.): Off
  • Others: On
  • Refrigerant pressure switch (low pressure switch, high pressure switch)
 1AP
ACCS (A/C relay) On/Off
  • A/C is operating: On
  • A/C is not operating: Off
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, PCM_T, RPM, TP, TR, AC_REQ COLP
 1AN
ALTF (Generator field coil control duty value) %
  • Ignition switch is turned to the ON position: 0%
  • Idling, E/L is operating: Duty value increases.
  • The following PIDs
    • ECT, IAT, RPM, VSS, ALTT V, VPWR
  • Generator
 2AQ
ALTT V (Generator output voltage) V
  • Ignition switch is turned to the ON position: Approx. 1.0 V or less
  • Idling (no electrical load): Approx. 14 V (This is an internal calculation value and differs from the terminal voltage.)
  • Generator
 2AM
APP (Accelerator pedal position) %
  • Accelerator pedal released: 0%
  • Accelerator pedal depressed: 100%
  • The following PIDs: APP1, APP2
  • APP sensor
 1Y
1AL
APP1 (Accelerator pedal position) V
  • Accelerator pedal released: Approx. 0.4 V
  • Accelerator pedal depressed: Approx. 3 V
  • APP sensor
 1Y
%
  • Accelerator pedal released: Approx. 8
  • Accelerator pedal depressed: Approx. 60%
APP2 (Accelerator pedal position) V
  • Accelerator pedal released: Approx. 0.4 V
  • Accelerator pedal depressed: Approx. 3 V
  • APP sensor
 1AL
%
  • Accelerator pedal released: Approx. 8%
  • Accelerator pedal depressed: Approx. 60%
ARPMDES (Target engine speed) RPM
  • Idling: indicate the target engine speed
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, BARO, VSS, AC_REQ, COLP
  • IAC valve
 -
BARO (Barometric pressure) kPa Bar psi
  • Ignition switch is turned to the ON position: Indicate the atmospheric pressure
  • BARO sensor
 1AG
V
  • Ignition switch is turned to the ON position
    • Altitude: 0 m {0 ft}: 2.3-2.8(1)
    • Altitude:500 m {1,640 ft}: 2.2-2.8(1)
    • Altitude:1,000 m {3,281 ft}: 2.1-2.8(1)
    • Altitude:1,500 m {4921 ft}: 2.0-2.8(1)
    • Altitude: 2,000 m {6,562 ft}: 1.9-2.7(1)
    • Altitude: 2,500 m {8,202 ft}: 1.8-2.6(1)
BOO (Brake switch) On/Off
  • Brake pedal is depressed: On
  • Brake pedal is released: Off
  • Brake switch
 1AU
BPA (Brake pressure applied switch) On/Off
  • Brake pedal depressed: Off
  • Brake pedal released: On
  • Brake switch
 -
CATT11_DSD (Estimated catalytic converter temperature) °C °F
  • Idling after warm up: indicate the TWC forecast temperature
 - -
CHRGLP (Generator warning light) On/Off
  • Ignition switch is turned to the ON position: On
  • Idling: Off
  • Generator warning light
 -
COLP (Refrigerant pressure switch (medium pressure switch)) ON/OFF
  • Refrigerant pressure is 1.52 MPa {15.5 kgf/cm2 221 psi} or more: ON
  • Refrigerant pressure is 12.3 MPa {125 kgf/cm2 1783 psi} or less: OFF
  • Refrigerant pressure switch (medium-pressure switch)
 1R
CPP(2) (Clutch pedal position) On/Off
  • Clutch pedal is depressed: On
  • Clutch pedal is released: Off
  • CPP switch
 1O
CPP/PNP(2) (Shift lever position) Drive/Neutral
  • Neutral: Neutral
  • Other than neutral: Drive
  • Neutral switch
 1S
DTCCNT (Number of DTC detected) No unit
  • Number of DTCs stored
 - -
DWN SW(3) (See PID/DATA MONITOR INSPECTION )
ECT (Engine coolant temperature) °C °F
  • Ignition switch is turned to the ON position: Indicate the ECT
  • ECT sensor
 2AK
V
  • ECT is 20 °C {68 °F}: 3.04 V - 3.14 V
  • ECT is 40 °C {104 °F}: 2.09 V - 2.21 V
  • ECT is 60 °C {140 °F}: 1.29 V - 1.39 V
  • ECT is 80 °C {176 °F}: -0.76 V - 0.83 V
  • ECT is 100 °C {212 °F}: 0.45 V - 0.49 V
EQ_RAT11(4) (Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio) No unit
  • Idling after warm-up: Approx.1
  • Front HO2S
 2AG
EQ_RAT11_DSD (Theoretical air/fuel ratio coefficient to calculate air/fuel ratio) No unit
  • Idling after warm-up: Approx.1
  • Front HO2S
 -
ETC_ACT (Electronic throttle control actual) °
  • CTP: Approx. 5.5%
  • WOT: Approx. 100%
  • TP sensor
 2A
2B
ETC_DSD (Electronic throttle control desired) %
  • Indicate the target throttle opening ratio
  • TP sensor
 2A
2B
°
  • Indicate the target throttle opening angle
  • The following PIDs:APP1, APP2, ETC_ACT
  • TP sensor
EVAPCP (Purge solenoid valve duty value) %
  • Ignition switch is turned to the ON position: 0%
  • Increase the engine speed: Duty value rises
  • The following PIDs
    • ECT, IAT, RPM, TP, MAF, O2S11.BOO, VPWR
 2AN
FAN_DUTY (Fan control duty value) %
  • When all of following condition are met: 48%
    • A/C On
    • Idle
  • Fun control module
 1W
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
  • Idling: On
  • Cranking: On
  • Fuel pump relay
 1AQ
FUELPW (Fuel injector duration) ms
  • Idling: Approx. 2.3 ms
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM.TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC_REQ, COLP, VPWR
 2AW(4)
2AS(4)
2AX(4)
2AT(4)
2BB(5)
2BC(5)
2BD(5)
2AZ(5)
FUELSYS (Fuel system status) OL/CL/OL_Drive/OL_Fault/CL_Fault
  • Idling after warm-up: CL
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC REQ, COLP, VPWR
 -
GEAR(3) (See PID/DATA MONITOR INSPECTION )
GENVDSD (Target generator voltage) V
  • Idling (no electrical load): Approx. 14 V (This is an internal calculation value and differs from the terminal voltage.)
  • The following PIDs
    • ECT, IAT, RPM, VSS, ALTT V, VPWR
  • Generator
 -
HTR11 (Front HO2S heater control) On/Off
  • Idling after warm-up: On - Off
  • The following PIDs
    • ECT, IAT, RPM, TP, MAF, BARO, VPWR
 2G(4)
2AH(5)
HTR12 (Rear HO2S heater control) On/Off
  • Idling after warm-up: On
  • Engine speed is 4,000 or more: Off
  • The following PIDs
    • ECT, IAT, RPM, TP, MAF, BARO, VPWR
 2C
IAT (Intake air temperature) °C °F
  • Ignition switch is turned to the ON position: Indicate the IAT
  • IAT sensor
 1AH
V
  • IAT is 20°C {68°F}: Approx. 2.38 V
  • IAT is 40°C {86°F}: Approx. 1.49 V
IMRC (Variable tumble control) On/Off
  • Cold start and 3,750 rpm or less: On
  • Hot start or 3,750 rpm or more: Off
  • The following PIDs
    • ECT, RPM, TP
 2AI
IMTV (Variable intake-air control) On/Off
  • Engine speed is less than 4,750 rpm [LF]/4,600 rpm [L3]: On
  • Engine speed is 4,750 rpm or more: Off
  • The following PIDs
    • RPM
 2AJ
INGEAR (Gears are engaged) On/Off MTX 
  • When the following conditions are satisfied: On
    • Not neutral
    • Clutch pedal released
  • Except above: Off
  • CPP switch
  • Neutral switch
 1O
1S
ATX 
  • Driving range: On
  • Except above: Off
  • TR switch
IVS (CTP condition) Idle/Off Idle
  • Idling: Idle
  • Other than idling: Off Idle
  • The following PIDs
    • TP
 -
KNOCKR (Knocking retard) °
  • Ignition switch is turned to the ON position: 0 °
  • Idling: 0 °
  • KS
 2Q
2R
LDP_EVAPCP (EVAP system leak detection pump detect incorrect purge flow) mA Indicate the EVAP control system incorrect purge flow detection value Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LDP_IDL (EVAP system leak detection pump idle current) mA Indicate the EVAP system leak detection pump idle current Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LDP_MON (EVAP system leak detection pump monitoring current) mA Indicate the EVAP system leak detection pump monitoring current Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LDP_REF (EVAP system leak detection pump reference current) mA Indicate the EVAP system leak detection pump reference current Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LDP_SLDV (EVAP system small leak detection value) mA Indicate the EVAP control system small leak detection value Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LDP_VSLDV(6) (EVAP system small leak detection value) A/s Indicate the EVAP control system vary small leak detection value Perform applicable DTC troubleshooting.
(See DTC TABLE )		 -
LINEDES(3) (See PID/DATA MONITOR INSPECTION )
LOAD (Engine load) %
  • Ignition switch is turned to the ON position: 0%
  • Idling after warm-up: Approx. 16%
  • The following PIDs
    • BARO, IAT, MAF, RPM
 -
LONGFT1 (Long term fuel trim) %
  • Idling (after warm-up): Approx. -20-20%
  • The following PIDs
    • CPP, CPP/PNR PSP, ECT, IAT, RPM.TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC REQ, COLP, VPWR
 -
LPS(3) (See PID/DATA MONITOR INSPECTION )
MAF (Mass air flow) g/s
  • Ignition switch to the ON position: Approx. 0 g/s
  • Idling after warm-up: Approx. 2 g/s
  • MAF sensor
 1AC
V
  • Ignition switch is turned to the ON position: Approx. 0.7 V
  • Idling after warm-up: Approx. 1.3 V
MAP (Manifold absolute pressure) kPa Bar psi
  • Ignition switch ON (at sea level): Approx. 106 kPa {1.06 Bar, 15.4 psi}
  • Idling after warm-up: Approx. 34 kPa {0.34 Bar, 4.9 psi}
  • MAP sensor
 2AL
V
  • Ignition switch ON (at sea level): Approx. 4.1 V
MIL (Malfunction indicator lamp) On/Off
  • Ignition switch is turned to the ON position: On
  • Idling: Off (If there is a malfunction in emission control related system: On)
  • MIL
 -
MIL_DIS (Travelled distance since MIL illuminated) km mile Indicate the travelled distance since the MIL illuminated
MNL SW(3) (See PID/DATA MONITOR INSPECTION )
O2S11 (Front HO2S) mA(4)
  • Idling after warm-up: Approx. 0 mA
  • Front HO2S
 2AG
V(5)
  • Idling after warm-up: Alternates between 0 and 1.0 V
  • Acceleration after warm-up: 0.5-1.0 V
  • Deceleration after warm-up: 0-0.5 V
  • Front HO2S
 2AG
O2S12 (Middle HO2S(4) Rear HO2S(7)) V
  • Idling after warm-up: Alternates between 0 and 1.0 V
  • Acceleration after warm-up: 0.5-1.0 V
  • Deceleration after warm-up: 0-0.5 V
 2AH
O2S13(4) (Rear HO2S) V
  • Idling after warm-up: Alternates between 0 and 1.0 V
  • Acceleration after warm-up: 0.5-1.0 V
  • Deceleration after warm-up: 0-0.5 V
  • Rear HO2S
 2AD
OP_SW_B(3) (See PID/DATA MONITOR INSPECTION )
OSS(3) (See PID/DATA MONITOR INSPECTION )
RFCFLAG (PCM adaptive memory produce verification) Learnt/Not Learnt
  • Idling (after running PCM adaptive memory procedure drive mode): Learnt
  • Right after the negative battery cable is disconnected (before running PCM adaptive memory procedure drive mode): Not Learnt
  • Perform "DRIVE MODE".
 -
RO2FT1 (Rear oxygen sensor fuel trim) No unit Idle after warm-up: Approx. 0.2
  • The following PID
    • O2S12
 2AH
RPM (Engine speed) RPM
  • Indicate the engine speed
  • CKP sensor
 2Y
2Z
SEGRP (EGR control) Step
  • Ignition switch is turned to the ON position: 0 step
  • Idling: 0 step
  • Cranking: 0-52 step
  • EGR valve
 2AR
2AU
2AV
2AY
SEGRP DSD (EGR valve position desired) %
  • When the PCM control the EGR system: indicate the desired EGR valve position
  • The following PID
    • MAF, TP, ECT, RPM, VSS
  • EGR valve
 -
SHRTFT1 (Short term fuel trim (front)) %
  • Idling (after warm-up): -30-+25%
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF.O2S11, O2S12, BARO, VSS, TR, BOO, AC_REQ, COLP, VPWR
 -
SHRTFT11(5) (Short term fuel trim (front)) %
  • Idling (after warm-up): -30-+25%
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC_REQ, COLP, VPWR
 2AG
SHRTFT12 (Short term fuel trim (rear)) %
  • Idling after warm-up: Approx. 99%
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC_REQ, COLP, VPWR
 2AH
SHRTFT13(4) (Short term fuel trim (rear)) %
  • Idling after warm-up: Approx. 99%
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, BARO, VSS, TR, BOO, AC_REQ, COLP, VPWR
 2AD
SPARKADV (Ignition timing) ° (BTDC)
  • During test mode on at idling: BTDC 9-11 ° (BTDC)
  • Idling: BTDC 6-18 ° (BTDC)
  • The following PIDs
    • CPP, CPP/PNP, PSP, ECT, IAT, RPM, TP, MAF, KNOCKR, TR, BOO, AC_REQ, COLP
 2U
2V
SSA/SS1(3) (See PID/DATA MONITOR INSPECTION )
SSB/SS2(3) (See PID/DATA MONITOR INSPECTION )
SSC/SS3(3) (See PID/DATA MONITOR INSPECTION )
TCS(3) (See PID/DATA MONITOR INSPECTION )
test (Test mode) On/Off
  • During test mode: On
  • Other than test mode: Off
 - -
TFT(3) (See PID/DATA MONITOR INSPECTION )
TFTV(3) (See PID/DATA MONITOR INSPECTION )
TIRESIZE (Tire revolution per mile) No unit
  • Indicate the tire revolution per a mile
 - -
TP REL (Throttle position signal (relative value)) %
  • CTP: Approx. 8.62%
  • WOT: Approx. 95.69%
  • TP sensor
 2I
2M
TP1 (TP sensor 1) %
  • CTP: Approx. 16.86%
  • WOT: Approx. 87.06%
  • TP sensor
 2M
V
  • CTP: Approx. 0.83 V
  • WOT: Approx. 4.35 V
TP2 (TP sensor 2) %
  • CTP: Approx. 16.86%
  • WOT: Approx. 87.06%
  • TP sensor
 2I
V
  • CTP: Approx. 4.16 V
  • WOT: Approx. 0.63 V
TPCT (TP sensor voltage at CTP) V
  • Approx. 0.63 V
  • TP sensor
 2I
2M
TR(3) (See PID/DATA MONITOR INSPECTION )
TR_SENS(3) (See PID/DATA MONITOR INSPECTION )
TSS(3) (See PID/DATA MONITOR INSPECTION )
UP SW(3) (See PID/DATA MONITOR INSPECTION )
VPWR (Battery positive voltage) V
  • Ignition switch is turned to the ON position.: B+
  • Idling: B+
  • Battery
  • Main relay
 1A
1BA
1BE
Vref(5) (Constant voltage) V
  • Ignition switch is turned to the ON position.: Approx. 5 V
  • Battery
 1AE
2W
VSS (Vehicle speed) km/h MPH
  • Vehicle running: Indicate the vehicle speed
  • VSS
 (8)
(9) 1J, 1N
(10) 1J
VT ACT1(7) (Actual valve timing) °
  • Idling: 0 °
  • Racing: 0-25 °
  • The following PIDs
    • ECT, RPM, TP, MAF
  • OCV
 2AF
VT DIFF1(7) (Difference between target valve timing and actual valve timing) °
  • Idling: 0 °
  • The following PIDs
    • ECT, RPM, TP, MAF
  • OCV
 -
VT DUTY1(7) (OCV control) %
  • Idling: Approx. 11%
  • The following PIDs
    • ECT, RPM, TP, MAF
 2AF
(1) The voltage may vary excessively depending on the weather or battery conditions.
(2) MTX
(3) ATX
(4) California emission regulation applicable LF engine model
(5) Except for California emission regulation applicable LF engine model
(6) California emission regulation applicable model
(7) L3 engine
(8) With ABS HU/CM
(9) Without ABS HU/CM, MTX
(10) Without ABS HU/CM, ATX
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