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Home >> Mazda >> 2007 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [Engine (L3)] >> Pcm Inspection >> Using SST (M-MDS or Equivalent)
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Using SST (M-MDS or Equivalent)

NOTE:
  1. Connect the SST  (M-MDS or equivalent) to the DLC-2.
  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, ECT_DSD, 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 DUTY
          Fig 1: Locating DLC-2 Connector
          G04315948Courtesy of MAZDA MOTORS CORP.
PID/DATA MONITOR REFERENCE CHART

Item (definition) Unit/Condition Condition/Specification (Reference) Inspection item(s) PCM terminal
AAT (Ambient air temperature) °C °F
  • Indicates ambient air temperature
  • The following PIDs
    • IAT
 -
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. 3.0 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, MAR BARO, VSS, AC_REQ, COLP
 -
BARO (Barometric pressure) kPa Bar psi
  • Ignition switch is turned to the ON position: Indicate the atmospheric pressure
  • BARO sensor
 -
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
 - -
CATT11_DSD (Estimated catalytic converter temperature) °C °F
  • Idling after warm up: indicate the TWC forecast temperature
 - -
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}: 3.04-3.14 V
  • ECT is 40 °C {104 °F}: 2.09 - 2.21 V
  • ECT is 60 °C {140 °F}: 1.29- 1.39 V
  • ECT is 80 °C {176 °F}: 0.76- 0.83 V
  • ECT is 100 °C {212 °F}: 0.45 - 0.49 V
EQ_RAT11_DSD
(Theoretical air/fuel ratio coefficient to calculate target 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
 2I 2M
ETC_DSD
(Electronic throttle control desired)		 %
  • Indicate the target throttle opening ratio
  • TP sensor
 2I 2M
°
  • 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: 0-75%
    • 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
 1AR
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
 2BB 2BC 2BD 2AZ
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
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 0°C {32°F}: Approx. 3.43 V
  • IAT is 20°C {68°F}: Approx. 2.38 V
  • IAT is 40°C {86°F}: Approx. 1.49 V
  • IAT is 60°C {140°F}: Approx. 0.89 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 4,600 RPM: On
  • Engine speed is 4,600 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)		 A
  • Indicates EVAP system leak detection pump detect incorrect
  • Perform applicable DTC troubleshooting.
 -
LDP_IDL
(EVAP system leak detection pump idle current)		 A
  • Indicates EVAP system leak detection pump idle current
  • Perform applicable DTC troubleshooting.
 -
LDP_MON
(EVAP system leak detection pump monitoring current)		 A
  • Indicates EVAP system leak detection pump monitoring current
  • Perform applicable DTC troubleshooting.
 -
LDP_REF
(EVAP system leak detection pump reference current)		 A
  • Indicates EVAP system leak detection pump reference current
  • Perform applicable DTC troubleshooting.
 -
LDP_SLDV
(EVAP system small leak detection value)		 A
  • Indicates EVAP system small leak detection value
  • Perform applicable DTC troubleshooting.
 -
LDP_VSL_FV
(EVAP system small leak detection value)		 mA/sec
  • Indicates EVAP system small leak detection fail value
  • Perform applicable DTC troubleshooting.
 -
LDP_VSL_SV
(EVAP system small leak detection value)		 mA/sec
  • Indicates EVAP system small leak detection safe value
  • Perform applicable DTC troubleshooting.
 -
LDP_VSLDV
(EVAP system small leak detection value)		 mA/sec
  • Indicates EVAP system small leak detection value
  • Perform applicable DTC troubleshooting.
 -
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/PNP, 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
  • Idling after warm-up: Approx. 1.2 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)		 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
  • Front HO2S
 2AG
O2S12
(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
 2AH
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
SCCS (Cruise control switch) V 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.
 1AD
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
(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
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 ).
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)		 V
  • CTP: Approx. 0.53-1.00 V
  • WOT: Approx. 4.25-4.75 V
  • TP sensor
 2M
%
  • Indicates throttle position
TP2
(TP sensor 2)		 V
  • CTP: Approx. 4.00-4.47 V
  • WOT: Approx. 0.25-0.75 V
  • TP sensor
 2I
%
  • Indicates throttle position
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
 1BA
  • Main relay
 1BE
VSS
(Vehicle speed)		 km/h MPH
  • Vehicle running: Indicate the vehicle speed
  • VSS
 -(2)
1J(3)
VT ACT1
(Actual valve timing)		 °
  • Idling: 0°
  • Racing: 0-25°
  • The following PIDs
    • ECT, RPM, TP, MAF
  • OCV
 2AF
VT DIFF1
(Difference between target valve timing and actual valve timing)		 °
  • Idling: 0°
  • The following PIDs
    • ECT, RPM, TP, MAF
  • OCV
 -
VT DUTY1
(OCV control)		 %
  • Idling: Approx. 11%
  • The following PIDs
    • ECT, RPM, TP, MAF
 2AF
VTC On/Off
  • Variable tumble shutter valve switch ON: ON
  • Variable tumble shutter valve switch OFF: OFF
  • Variable tumble shutter valve switch
 2AI
(1) The voltage may vary excessively depending on the weather or battery conditions.
(2) MTX
(3) ATX
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