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Home >> Mazda >> 2012 >> 6 i Touring Plus >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 2.5] >> Pcm Inspection >> PID/DATA monitor table (reference)
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PID/DATA monitor table (reference)

Monitor item (Definition) Unit/Condition Condition/Specification (Reference) Inspection item PCM terminal
AAT
(Ambient air temperature)
°C °F Switch the ignition to ON: Indicates the ambient air temperature IAT sensor 1AT
AC_REQ
(A/C request signal)
OFF/ON A/C switch OFF: OFF
A/C switch ON: ON
Perform applicable
DTC troubleshooting
-
ACCS
(A/C relay)
OFF/ON A/C relay OFF: OFF
A/C relay ON: ON
A/C relay
Inspect following PIDs: RPM, TP REL, ECT.
1I
AFR
(Target air fuel ratio)
- Target air fuel ratio is displayed A/F sensor 2Z
2AC
2AD
AFR_ACT
(Actual air fuel ratio)
- Actual air fuel ratio is displayed A/F sensor 2Z
2AC
2AD
ALTF
(Generator field coil control duty value)
% Just after A/C switch ON and fan switch ON at Idle (after warm up): Duty value rises Generator
Inspect following PIDs: IAT, ECT, RPM, VPWR, ALTT V.
2AA
ALTT V
(Generator output voltage)
V Switch the ignition to ON: 0 V
Idle (after warm up): approx. 14 V(1) (E/L not operating)
Generator 2AF
APP
(APP sensor)
%
  • Accelerator pedal released: approx. 0 %
  • Accelerator pedal depressed: approx. 100 %
APP sensor 1AO
1AP
APP1
(APP sensor No.1)
%
  • Accelerator pedal released: approx. 15 %
  • Accelerator pedal depressed: approx. 80 %
APP sensor No.1 1AO
V
  • Accelerator pedal released: approx. 0.8 V
  • Accelerator pedal depressed: approx. 4.0 V
APP2
(APP sensor No.2)
%
  • Accelerator pedal released: approx. 7.5 %
  • Accelerator pedal depressed: approx. 42 %
APP sensor No.2 1AP
V
  • Accelerator pedal released: approx. 0.4 V
  • Accelerator pedal depressed: approx. 2.0 V
ARPMDES
(Target engine speed)
RPM
  • Indicate the target engine speed
CKP sensor
Inspect following PIDs: IAT, RPM, MAP, ECT, MAF, TP REL, INGEAR, ALTT V.
-
BARO
(Barometric pressure)
kPa, psi, Bar Indicate the BARO BARO sensor -
V
  • Switch the ignition to ON (at sea level): approx. 4.1 V
BOO
(Brake switch (No.1 signal))
OFF/ON Brake pedal depressed: ON
Brake pedal released: OFF
Brake switch (No.1 signal) 1AB
BPA
(Brake switch (No.2 signal))
OFF/ON Brake pedal depressed: ON
Brake pedal released: OFF
Brake switch (No.2 signal) 1AF
CATT11_DSD
(Desired catalyst temperature bank one, sensor one)
°C Indicate the estimated catalytic converter temperature Perform applicable DTC troubleshooting. -
CHRGLP
(Generator warning light)
OFF/ON Switch the ignition to ON: ON
Idle (after warm up): OFF
Perform applicable DTC troubleshooting. -
COLP
(Refrigerant pressure sensor)
OFF/ON Refrigerant pressure is above 1.96 Mpa {20.0kgf/cm2 , 284 psi}: ON Refrigerant pressure sensor 1J
CPP(2)
(Clutch pedal position)
OFF/ON Clutch pedal depressed: ON
Clutch pedal released: OFF
CPP switch 1BD
CPP/PNP(2)
(Shift lever position)
OFF/ON Neutral position: ON
Others: OFF
Neutral switch 1BC
ECT
(Engine coolant temperature)
°C °F Indicate the ECT ECT sensor 2AH
V ECT 20 °C {68 °F}: 3.04-3.14 V
ECT 80 °C {176 °F}: 0.76-0.83 V
EQ_RAT11
(Equivalence ratio (lambda))
- Idling after warm up: approx. 1 Perform applicable DTC troubleshooting. 2Z
2AC
2AD
EQ_RAT11_DSD
(Desired equivalence ratio (lambda))
- 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. 2BE, 2BF
ETC_DSD
(Electronic throttle control desired)
% Indicate the desired TP by percent TP sensor
Inspect following PIDs: APP1, APP2, ETC_ACT.
-
° Indicate the desired TP by angle
EVAPCP
(Purge solenoid valve duty value)
% Switch the ignition to ON: 0%
Idle (after warm up): 0%
Inspect following PIDs: IAT, RPM, ECT, MAF, O2S11, INGEAR, VPWR. 2C
EVAPCV
(Evaporative emission canister vent valve)
OFF/ON Simulation item (EVAPCV) is ON: ON CV solenoid valve 1M
FAN_DUTY
(Fan control module)
%
  • When all of following condition are met: 50%
    • Test mode ON
    • WOT
Fan control module 1R
FCL
(Fuel cap warning light)
OFF/ON
  • Fuel cap warning light not illuminated: OFF
  • Fuel cap warning light illuminated: ON
Perform applicable DTC troubleshooting. -
FLI
(Fuel level)
%
  • Fuel gauge level F: approx. 100%
  • Fuel gauge level E: approx. 0%
Perform applicable DTC troubleshooting. -
FP
(Fuel pump relay)
OFF/ON Switch the ignition to ON: OFF
Idle (after warm up): ON
Cranking: ON
Fuel pump relay
Inspect following PIDs: RPM.
1BG
FTP
(Fuel tank pressure sensor)
kPa, psi, Bar Indicate the fuel tank pressure Fuel tank pressure sensor 1AH
V Fuel tank pressure is equal to barometric pressure: approx. 2.625 V
FUELPW
(Fuel injector duration)
sec Idle (after warm up): approx. 2.2 ms Fuel injector
Inspect following PIDs: IAT, MAF, TP REL, MAP, ECT, RPM, O2S11, O2S12, INGEAR, VPWR, ALTT V.
2AZ
2BB
2BC
2BD
FUELSYS
(Fuel system status)
OL/CL/CL-Fault/OL-Fault/OL-Drive Idle (after warm up): CL Fuel injector
Inspect following PIDs: IAT, MAF, TP REL, MAP, ECT, RPM, O2S11, O2S12, INGEAR, VPWR, ALTT V.
-
HTR11
(A/F sensor heater)
OFF/ON Idle (after warm up): ON OFF Inspect following PIDs: IAT, MAF, TP REL, ECT, RPM. 2A
HTR12
(HO2S heater)
OFF/ON Idle (after warm up): ON OFF Inspect following PIDs: IAT, MAF, ECT, RPM. 2B
IAT
(Intake air temperature)
°C °F Indicate the IAT IAT sensor 1AT
V IAT 20 °C {68 °F}: approx. 2.38 V
IAT 60 °C {140 °F}: approx. 0.89 V
IMRC
(Variable tumble solenoid valve)
OFF/ON
  • ECT below 60 °C {140 °F} and engine speed below 3,750 rpm : On
  • ECT above 60 °C {140 °F} while idling.: Off
Variable tumble solenoid valve
Inspect following PIDs: TP REL, ECT, RPM.
2I
IMRC_POS
(Variable tumble shutter valve position sensor)
V
  • ECT below 60 °C {140 °F} and engine speed below 3,750 rpm : 3.408-4.432 V
  • ECT above 60 °C {140 °F} while idling.: 0.808-1.832 V
Variable tumble shutter valve position sensor 2R
IMTV
(Variable Intake air control solenoid valve)
OFF/ON Engine speed is below approx. 4,400 rpm: On
Others: Off
Variable intake air control solenoid valve
Inspect following PIDs: RPM.
2J
INGEAR
(Load/no load condition)
OFF/ON
  • CPP or CPP/PNP is ON: Off
  • Others: On
Perform applicable DTC troubleshooting. 1BC, IBD
IVS
(CTP condition)
Idle/Off_Idle
  • CTP: Idle
  • Others: Off Idle
Perform applicable DTC troubleshooting. -
KNOCKR
(Knocking retard)
° Switch the ignition to ON: 0°
Idle (after warm up): 0°
KS 2U
2V
LOAD
(Engine load)
% Switch the ignition to ON: 0%
Idle (after warm up): approx.15%
MAF sensor -
LONGFT1
(long term fuel trim)
% Idle (after warm up): -15-20% Perform applicable DTC troubleshooting. -
MAF
(Mass airflow)
g/sec Indicate the MAF MAF sensor 1AK
V Switch the ignition to ON: approx. 0.68 V
Idle (after warm up): approx. 1.2 V
MAP
(Manifold absolute pressure)
kPa, psi, Bar Indicate the MAP MAP sensor 2AG
V
  • Switch the ignition to ON (at sea level): approx. 4.1 V
  • Idle (after warm up): approx. 1.2 V
MIL
(Malfunction indicator lamp)
OFF/ON
  • DTC stored: On
  • DTC not stored: Off
Perform applicable DTC troubleshooting. -
MIL_DIS
(Travelled distance since the MIL illuminated)
km miles Indicate the travelled distance since the MIL illuminated
O2S11
(A/F sensor)
A Idle (After warm up): approx. 0 mA A/F sensor 2Z
2AC
2AD
O2S12
(HO2S)
V Idle (After warm up): 0-1.0 V HO2S 2Q
PSP
(PSP switch)
OFF/ON
  • Steering wheel in straight ahead position: OFF
  • Wheel turning steering wheel: ON
PSP switch 2T
RO2FT1
(HO2S 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
SC_CANCEL(3)
(CANCEL switch)
Inactive/Active CANCEL switch pressed in: Active
Except above: Inactive
Cruise control switch 1AQ
SC_OFF(3)
(ON/OFF switch)
Inactive/Active ON/OFF switch pressed in (OFF): Active
Except above: Inactive
Cruise control switch 1AQ
SC_ON(3)
(ON/OFF switch)
Inactive/Active ON/OFF switch pressed in (ON): Active
Except above: Inactive
Cruise control switch 1AQ
SC_RES(3)
(RESUME switch)
Inactive/Active RESUME switch pressed in: Active
Except above: Inactive
Cruise control switch 1AQ
SC_SET-(3)
(SET(-) switch)
Inactive/Active SET(-) switch pressed in: Active
Except above: Inactive
Cruise control switch 1AQ
SC_SET(3)
(SET(+) switch)
Inactive/Active SET(+) switch pressed in: Active
Except above: Inactive
Cruise control switch 1AQ
SCCS(3)
(Speed control command switch)
V ON/OFF switch pressed in (OFF): approx. 0 V
CANSEL switch pressed in: approx. 1.3 V
SET(-) switch pressed in: approx. 2.4 V
SET(+) switch pressed in: approx. 3.2 V
RESUME switch pressed in: approx. 3.9 V
ON/OFF switch pressed in (ON): approx. 4.3 V
Cruise control switch 1AQ
SEGRP
(EGR valve (stepping motor) position)
- Switch the ignition to ON: 0
Idle (after warm up): 0 step
Cranking: 0-52
EGR valve
Inspect following PIDs: MAF, TP REL, ECT, RPM, VSS.
2AT, 2AX, 2AW, 2BA
SEGRP DSD
(Desired EGR valve position)
% Indicate the desired EGR valve position Inspect following PIDs: MAF, TP REL, ECT, RPM, VSS. -
SHRTFT1
(Short term fuel trim)
% Idle (after warm up): approx.-25-25% Perform applicable DTC troubleshooting. -
SPARKADV
(Ignition timing)
° Indicate the ignition timing Inspect following PIDs: MAF, TP REL, ECT, RPM, INGEAR, VPWR. 2G,
2H,
2K,
2L
Test
(Test mode)
OFF/ON Test mode ON: On
Test mode OFF: Off
- -
TH_M (Thermostat monitor engine coolant temperature) - Indicates heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) when thermostat monitoring is finished Thermostat -
°C °F Indicates engine coolant temperature when thermostat monitoring is finished -
TH_M_MAX (Thermostat monitor engine coolant temperature max limit) - Indicates upper limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution Thermostat -
°C °F Indicates upper limit of engine coolant temperature for thermostat monitoring execution -
TH_M_MIN (Thermostat monitor engine coolant temperature min limit) - Indicates lower limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution Thermostat -
°C °F Indicates lower limit of engine coolant temperature for thermostat monitoring execution -
TP REL
(Relative throttle position)
% Accelerator pedal released: approx. 3%
Accelerator pedal depressed: approx. 75%
TP sensor -
TP 1
(TP sensor No.1)
% Accelerator pedal released: approx. 12%
Accelerator pedal depressed: approx. 84%
TP sensor No.1 2AK
V Accelerator pedal released: approx. 0.6 V
Accelerator pedal depressed: approx. 4.2 V
TP 2
(TP sensor No.2)
% Accelerator pedal released: approx. 12%
Accelerator pedal depressed: approx. 84%
TP sensor No.2 2AL
V Accelerator pedal released: approx. 4.4 V
Accelerator pedal depressed: approx. 0.8 V
TPCT
(TP sensor voltage at CTP)
V approx. 0.5 V TP sensor 2AK
2AL
VPWR
(Battery positive voltage)
V Switch the ignition to ON: B+ Battery 1C
VSS
(Vehicle speed)
KPH Indicate the vehicle speed Perform applicable DTC troubleshooting. -
VT ACT1
(Actual valve timing)
° Idle (after warm up): approx. 0°
Racing after warm up: 0-25°
OCV
Inspect following PIDs: TP REL, ECT, RPM.
2E
VT DIFF1
(Difference between target and actual valve timing)
° Idle (after warm up): approx. 0° OCV
Inspect following PIDs: TP REL, ECT, RPM.
2E
VT DUTY1
(Oil control valve duty value)
% Idle (after warm up): approx. 11.5% OCV
Inspect following PIDs: TP REL, ECT, RPM.
2E
(1) Calculated value; differs from terminal voltage 
(2) MTX 
(3) Vehicles equipped with cruise control switch