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Home >> Mazda >> 2021 >> CX-3 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Pcm Inspection >> Using The M-MDS (With Coolant Control Valve)
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Using The M-MDS (With Coolant Control Valve)

NOTE:
  • PIDs for the following parts are not available on this model. Go to the appropriate part inspection information.
  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON.
  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.

-: Not applicable

Item (definition) Unit/Condition Value type Condition/Specification (Reference)
AAT (Ambient air temperature) °C, °F -
  • Displays ambient air temperature
AC_PRES (Refrigerant pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays refrigerant pressure
V Input
  • Refrigerant pressure is 1.0 MPa {10 kgf/cm2 , 145 psi}: Approx. 1.58 V
  • Refrigerant pressure is 1.1 MPa {11 kgf/cm2 , 160 psi}: Approx. 1.75 V
  • Refrigerant pressure is 1.2 MPa {12 kgf/cm2 , 174 psi}: Approx. 1.88 V
AC_REQ (A/C request signal) Off/On Input
  • A/C switch OFF: Off
  • A/C switch ON: On
ACCS (A/C relay) Off/On Input
  • A/C relay is OFF: Off
  • A/C relay is ON: On
AIRSHUT_ACT Displays in the M-MDS but it does not operate.
AIRSHUT_CAL
ALTF (Generator field coil control duty value) % Calculation
  • Ignition switched ON (engine off): 0%
  • Idle: Approx. 46%
  • Racing (Engine speed is 2, 000 RPM): Approx. 36%
ALTF_ACT (Actually measured value of field coil current signal input from generator) % Calculation
  • Displays actual generator field current control duty value
AMB_TEMP (Ambient air temperature) °C, °F Calculation
  • Displays ambient air temperature
APP (Accelerator pedal position) % Calculation
  • Accelerator pedal released: Approx. 0%
  • Accelerator pedal depressed: Approx. 100%
APP1 (APP sensor No. 1) % Calculation
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 90.58%
V Input
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.52 V
APP2 (APP sensor No. 2) % Calculation
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 45.49%
V Input
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.26 V
ARPMDES (Target engine speed) RPM Calculation
  • Displays target engine speed
BARO (Barometric pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays BARO
BOO (Brake switch No. 1 signal) High/Low Calculation
  • Brake pedal released: Low
  • Brake pedal depressed: High
BPA (Brake switch No. 2 signal) High/Low Calculation
  • Brake pedal released: Low
  • Brake pedal depressed: High
BT_AH_ACCML TD (Battery accumulated amp hour (Ah)) - Calculation
  • Displays battery accumulated amp hour
CATT11_DSD (Estimated catalytic converter temperature) °C, °F Calculation
  • Displays estimated catalytic converter temperature
CHRGLP (Charging system warning light) Off/On Calculation
  • Charging system warning light not illuminated: Off
  • Charging system warning light illuminated: On
CLR_DIST (Distance after DTC cleared) - Calculation
  • Displays the mileage after DTC cleared
CLU_CUT_SW (1) (Starter interlock switch status) Off/On Calculation
  • Displays starter interlock switch status
CLU_SW (1) (CPP switch status) Off/On Calculation
  • Displays CPP switch status
CPP (1) (Clutch pedal position) Off/On Calculation
  • Clutch pedal released: Off
  • Clutch pedal depressed: On
% Calculation
  • Clutch pedal released: Approx. 3%
  • Clutch pedal depressed: Approx. 99%
CPP/PNP (1) (Shift lever position) Off/On Calculation
  • Other than neutral: Off
  • Neutral: On
DIS_EMD (3) (Total traveled distance after EVAP monitoring is completed) km, ft, mi Calculation
  • Displays total traveled distance after EVAP monitoring is completed
ECT (Engine coolant temperature) °C, °F Calculation
  • Displays ECT
V Input
  • ECT is 20°C {68°F}: Approx. 3.10 V
  • ECT is 40°C {104°F}: Approx. 2.16 V
  • ECT is 60°C {140°F}: Approx. 1.40 V
  • ECT is 80°C {176°F}: Approx. 0.87 V
  • ECT is 100°C {212°F}: Approx. 0.54 V
ECT2_V (ECT sensor No. 2 voltage) V Input
  • ECT is 20°C {68°F}: Approx. 3.10 V
  • ECT is 40°C {104°F}: Approx. 2.16 V
  • ECT is 60°C {140°F}: Approx. 1.40 V
  • ECT is 80°C {176°F}: Approx. 0.87 V
  • ECT is 100°C {212°F}: Approx. 0.54 V
ENG_CL_V_POS (Coolant control valve opening angle) ° (deg) Calculation
  • Displays target coolant control valve opening angle
ENG_CL_V_POS_R (Coolant control valve opening angle raw) ° (deg) Input
  • Ignition switched ON (engine off): Approx. 114°
ENG_EX_FLW (Engine exhaust flow rate) - Calculation
  • Displays engine exhaust flow rate
ENG_FRCTN_PER (Engine friction percent torque) % Calculation
  • Displays engine friction percent torque
EOL (Engine oil level) mm, in Calculation
  • Displays engine oil level
EOP (Engine oil pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Switch ignition ON (engine off): 0-1 kPa {0.00-0.01 kgf/cm2 , 0.0-0.1 psi}
  • Idle: Approx. 150 kPa {1.53 kgf/cm2 , 21.8 psi}
EOT2 *5 (Engine oil temperature from engine oil level sensor) °C, °F Calculation
  • Displays engine oil temperature
EQ_RAT11 (Equivalence ratio (lambda)) - Calculation
  • Idle (after warm up): Approx. 1
EQ_RAT11_DSD (Desired equivalence ratio (lambda)) - Calculation
  • Indicate target lambda (Excess air factor = supplied air amount/theoretical air/fuel ratio)
ETC_ACT (Electric throttle control actual) ° (deg) Calculation Ignition switched ON (engine off)
  • Accelerator pedal released: Approx. 12.89°
  • Accelerator pedal depressed: Approx. 86.03° Idle (after warm up)
  • Accelerator pedal released: Approx. 3.87°
  % Calculation
  • Displays target TP angle (percent)
ETC_DSD
(Electric throttle control desired)
° (deg) Calculation
  • Displays target TP angle
EVAPCP (Purge solenoid valve duty value) % Calculation
  • Idle (after warm up): 0% (Engine coolant temperature 59°C {140°F} or less)
  • Racing (Engine speed 2, 000 RPM): Approx. 4.7%
  • Racing (Engine speed 4, 000 RPM): Approx. 35.35%
EVAPCV (3) (Evaporative emission canister vent valve) Off/On Calculation
  • Simulation item (EVAPCV) is ON: On
FUN_DUTY (Fan control module) % Calculation Idle
  • ECT is below 100°C {212°F}: 0 %
  • ECT is above 100°C {212°F}: Approx. 30-100 % (after a certain period has elapsed from when ECT reaches 100°C {212°F})
FAN1 Displays in the M-MDS but it does not operate.
FAN2
FAN3
FCL (3) (Check fuel cap warning light) Off/On Calculation
  • Check fuel cap warning light not illuminated: Off
  • Check fuel cap warning light illuminated: On
FIA (Fuel injection amount) - Calculation
  • Displays fuel injection amount
FLI (Fuel level) % Calculation
  • Fuel gauge level F: Approx. 100%
  • Fuel gauge level E: Approx. 0%
FP (Fuel pump relay) Off/On Calculation
  • Ignition switched ON (engine off): Off
  • Cranking: On
  • Idle (after warm up): On
FP_DUTY (Fuel pump control module) % Calculation
  • Ignition switched ON (engine off): Approx. 56.72%
  • Cranking: Approx. 95%
  • Idle (after warm up): Approx. 56.72%
FRP (Fuel distributor pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays fuel distributor pressure
FRP_A (Actual fuel distributor pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Ignition switched ON (engine off): Approx. 3.36 MPa {34.3 kgf/cm2 , 487 psi}
  • Idle (after warm up): Approx. 2.96- 3.13 MPa {30.2- 31.9 kgf/cm2 , 430-453 psi}
  • Racing (engine speed is 2, 000 RPM): Approx. 3.3 MPa {34 kgf/cm2 , 479 psi}
  • Racing (engine speed is 4, 000 RPM): Approx. 4.94 MPa {50.4 kgf/cm2 , 716 psi}
FRP_A_CMD (Target fuel distributor pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Ignition switched ON (engine off): Approx. 6 MPa {61 kgf/cm2 , 870 psi}
  • Idle (after warm up): Approx. 3.1 MPa {32 kgf/cm2 , 450 psi}
  • Racing (engine speed is 2, 000 RPM): Approx. 3.37 MPa {34.4 kgf/cm2 , 489 psi}
  • Racing (engine speed is 4, 000 RPM): Approx. 4.97 MPa {50.7 kgf/cm2 , 721 psi}
FRP_A_CMD_S (Presence/non-presence of target fuel distributor pressure) No/Yes Calculation
  • With fuel distributor: Yes
  • Without fuel distributor: No
FRP_A_S (Presence/non-presence of actual fuel distributor) No/Yes Calculation
  • With fuel distributor: Yes
  • Without fuel distributor: No
FRT_A (Fuel distributor temperature) °C, °F Calculation
  • Displays fuel distributor temperature
FT_A_S (Presence/non-presence of fuel distributor temperature) No/Yes Calculation
  • With fuel distributor: Yes
  • Without fuel distributor: No
FTP (3) (Fuel tank pressure sensor) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays fuel tank pressure
V Input
  • Fuel tank pressure is equal to barometric pressure: Approx. 2.5 V
FUEL_P_DSD (Fuel pressure desired) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays target fuel pressure (high pressure fuel pump) Idle (after warm up)
    • ECT is 80°C {176°F}: Fuel pressure is 10 MPa {102 kgf/cm2 , 1450 psi}
FUEL_PRES (Fuel pressure sensor) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays fuel pressure
V Input Idle (ECT 80°C {176°F})
  • Fuel pressure is 10 MPa {102 kgf/cm2 , 1450 psi}: Approx. 1.4 V
FUELPW (Fuel injector duration) Sec Calculation
  • Idle (after warm up): Approx. 1.26 ms
  • Racing (engine speed is 2, 000 RPM): Approx. 1.2 ms
  • Racing (engine speed is 4, 000 RPM): Approx. 1.1 ms
FUELSYS (Fuel system status) OL/CL/OL Drive/OL_Fault/CL_Fault Calculation
  • Idle (after warm up): OL or CL
  • Racing (engine speed is 2, 000 RPM): CL
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): OL-Drive
GEAR (2) (Gear commanded) Unknown/1st/2nd/3rd/4th/5th/6th/Not in P/Park/Neutral/Drive/Reverse Calculation
  • Selector lever at P position: Park
  • Selector lever at R position: Reverse
  • Selector lever at N position: Neutral
  • Selector lever in 1GR at D position: 1st
HTR11 (A/F sensor heater) Off/On Calculation
  • Ignition switched ON (engine off): Off
  • Idle (after warm up): On
% Calculation
  • Ignition switched ON (engine off): 0%
  • Idle (after warm up): Approx. 43%
HTR12 (HO2S heater control) Off/On Calculation
  • Ignition switched ON (engine off): Off
  • Idle (after warm up): On
% Calculation
  • Ignition switched ON (engine off): 0%
  • Idle (after warm up): Approx. 53%
IAT (Intake air temperature No. 1) °C, °F Calculation
  • Displays IAT (No. 1)
V Input
  • IAT is 20°C {68°F}: Approx. 2.70 V
  • IAT is 40°C {104°F}: Approx. 1.80 V
  • IAT is 60°C {140°F}: Approx. 1.20 V
IAT2 (Intake air temperature No. 2) °C, °F Calculation
  • Displays IAT (No. 2)
V Input
  • IAT2 is 20°C {68°F}: Approx. 3.57 V
  • IAT2 is 40°C {104°F}: Approx. 2.70 V
  • IAT2 is 60°C {140°F}: Approx. 1.87 V
INGEAR (Gears are engaged) Off/On Calculation MTX
  • When the following conditions are satisfied: On
    • Other than neutral
      • Clutch pedal released
  • Except above: Off ATX
  • Selector lever at P position or N position: Off
  • Except above: On
ISC_FBK (ISC feedback value) % Calculation
  • Displays ISC feedback value
ISC_FBK_LRN (Learning value for calculating ISC feedback amount) % Calculation
  • Displays learning value for calculating ISC feedback amount
IVS (Idle flag) Off Idle/Idle Calculation
  • Other than idling: Off Idle
  • Idle: Idle
KNOCKR (Ignition timing correction for suppressing engine knock) (4) ° (deg) Calculation
  • Ignition switched ON (engine off): 0°
  • Idle (after warm up): 0°
LAFS_CM Displays in the M-MDS but it does not operate.
LOAD (Engine load) % Calculation
  • Idle (after warm up): Approx. 16.07%
  • Racing (engine speed is 2, 000 RPM): Approx. 13.33%
  • Racing (engine speed is 4, 000 RPM): Approx. 15.29%
LONGFT1 (Long term fuel trim) % Calculation
  • Idle (after warm up): Approx. -3.9%
  • Racing (engine speed is 2, 000 RPM): Approx. -0.78%
  • Racing (engine speed is 4, 000 RPM): Approx. -0.78%
LONGFT12 (Long term fuel trim (HO2S)) % Calculation
  • Idle (after warm up): Approx. 0%
LOW_OIL (Engine Oil Level Status) Never Detected/Detected Calculation
  • Ignition switched ON (engine off): Detected
  • Idle (after warm up): Never Detected
LRN_KCS (Knock control system learning value) - Calculation
  • Displays knock control system learning value
M_GEAR (1) (Manual Gear Position) Neutral/1st gear/2nd gear/3rd gear/4th gear/5th gear/6th gear/Reverse/Undefined/Auto/In_Progress/YSF/Error Calculation
  • Displays manual gear position
  g/Sec Calculation
  • Displays MAF
MAF (Mass airflow) V Input
  • Ignition switched ON (engine off) (MAF: 0.00 g/s {0 lb/min}): Approx. 1.69 V (ECT is 53°C {127°F})
  • Idle (after warm up) (MAF: 2.50 g/s {0.331 lb/min}): Approx. 1.89 V (ECT is 93°C {199°F})
  • Racing (engine speed is 2, 000 RPM) (MAF: 3.80 g/s {0.503 lb/min}): Approx. 2.02 V (ECT is 95°C {203°F})
MAP (Manifold absolute pressure) KPa {MPA}, mBar {BAR}, psi, in H20 Calculation
  • Displays MAP
MAP_V (MAP sensor voltage) V Input
  • Ignition switched ON (engine off) (MAP:100 kPa {1.02 kgf/cm2 , 14.5 psi}): Approx. 4.04 V
  • Idle (after warm up) (MAP: 35 kPa {0.36 kgf/cm2 , 5.1 psi}): Approx. 1.40 V
  • Racing (engine speed is 2, 000 RPM) (MAP: 26 kPa {0.27 kgf/cm2 , 3.8 psi}): Approx. 1.01 V
MF_CAT_2 (Number of misfires corresponding to possible catalytic converter damage (No. 2 cylinder)) - Calculation
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 2 cylinder)
MF_CAT_3 (Number of misfires corresponding to possible catalytic converter damage (No. 3 cylinder)) - Calculation
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 3 cylinder)
MF_CAT_4 (Number of misfires corresponding to possible catalytic converter damage (No. 4 cylinder)) - Calculation
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 4 cylinder)
MF_CAT_FCC (Number of misfire determinations (for catalytic converter)) - Calculation
  • Displays number of misfire determinations (for catalytic converter)
MF_CAT_TTL (Number of misfires corresponding to possible catalytic converter damage (total)) - Calculation
  • Displays number of misfires corresponding to possible catalytic converter damage (total)
MF_CAT1 (Number of misfires corresponding to possible catalytic converter damage (No. 1 cylinder)) - Calculation
  • Displays number of misfires corresponding to possible catalytic converter damage (No. 1 cylinder)
MF_EMI_2 (Number of misfires possibly affecting emission (No. 2 cylinder)) - Calculation
  • Displays number of misfires possibly affecting emission (No. 2 cylinder)
MF_EMI_3 (Number of misfires possibly affecting emission (No. 3 cylinder)) - Calculation
  • Displays number of misfires possibly affecting emission (No. 3 cylinder)
MF_EMI_4 (Number of misfires possibly affecting emission (No. 4 cylinder)) - Calculation
  • Displays number of misfires possibly affecting emission (No. 4 cylinder)
MF_EMI_FCC (Number of misfire determinations (for emission)) - Calculation
  • Displays number of misfire determinations (for emission)
MF_EMI_TTL (Number of misfires possibly affecting emission (total)) - Calculation
  • Displays number of misfires possibly affecting emission (total)
MF_EMI1 (Number of misfires possibly affecting emission (No. 1 cylinder)) - Calculation
  • Displays number of misfires possibly affecting emission (No. 1 cylinder)
MIL (Check engine light) Off/On Calculation
  • Check engine light not illuminated: Off
  • Check engine light illuminated: On
MIL_DIS (Travelled distance since the check engine light illuminated) km, ft, mi Calculation
  • Displays travelled distance since the check engine light illuminated
O2S11 (A/F sensor) μA Input
  • Idle (after warm up): Approx. -39 μA
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): Approx. 3.84 mA
O2S12 (HO2S) V Input
  • Idle (after warm up): 0-1.0 V
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): Approx. 0 V
OIL_P_SOL (Engine oil solenoid valve) Off/On Calculation
  • ECT above 98°C {208°F} or engine speed above 4, 000 RPM: Off
  • ECT below 98°C {208°F} and engine speed below 4, 000 RPM: On
OIL_PRES (Engine oil solenoid valve) V Calculation
  • Displays estimated engine oil pressure
OIL_TEMP (Estimated engine oil temperature) °C, °F Calculation
  • Displays estimated engine oil temperature
PN_SW (2) (Parking/neutral) Open/Closed Calculation
  • Selector lever at P position or N position: Closed
  • Except above: Open
REV_SW (1) (Back-up light switch status) Off/On Calculation
  • Displays back-up light switch status
RO2FT1 (HO2S fuel trim) % Calculation
  • Idle (after warm up): Approx. 1.5%
  • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): Approx. 3.99%
RPM (Engine speed) RPM Calculation
  • Displays engine speed
SHRTFT1 (Short term fuel trim) % Calculation
  • Idle (after warm up): Approx. 2.34%
  • Racing (engine speed is 2, 000 RPM): Approx. 3.9%
  • Racing (engine speed is 4, 000 RPM): Approx. 1.56%
SHRTFT12 (Short term fuel trim (HO2S)) % Calculation
  • Idle (after warm up): Approx. 0%
SPARKADV (Ignition timing) ° (deg) Calculation
  • Displays ignition timing
Test (Test mode) Off/On Calculation
  • Test mode OFF: Off
  • Test mode ON: On
TH_M (Thermostat monitor) °C, °F Calculation
  • Displays thermostat monitor engine coolant temperature
- Calculation
  • Displays thermostat monitor heat radiation ratio
TH_M_MAX (Thermostat monitor) °C, °F Calculation
  • Displays thermostat monitor engine coolant temperature (max limit)
- Calculation
  • Displays thermostat monitor heat radiation ratio (max limit)
TH_M_MIN (Thermostat monitor) °C, °F Calculation
  • Displays thermostat monitor engine coolant temperature (min limit)
- Calculation
  • Displays thermostat monitor heat radiation ratio (min limit)
Time_D_LR (Lean to rich delayed time) Sec Calculation
  • Displays lean to rich delayed time
Time_D_RL (Rich to lean delayed time) Sec Calculation
  • Displays rich to lean delayed time
Time_SR_LR (Lean to rich slow response time) Sec Calculation
  • Displays lean to rich slow response time
Time_SR_RL (Rich to lean slow response time) Sec Calculation
  • Displays rich to lean slow response time
TP_REL (Relative throttle position) % Calculation
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal depressed: Approx. 82%
TP1 (TP sensor No. 1) V Input
  • Accelerator pedal released: Approx. 1.11 V
  • Accelerator pedal depressed: Approx. 4.59 V
% Calculation
  • Accelerator pedal released: Approx. 22%
  • Accelerator pedal depressed: Approx. 92%
TP2
(TP sensor No. 2)
V Input
  • Accelerator pedal released: Approx. 3.92 V
  • Accelerator pedal depressed: Approx. 0.41 V
% Calculation
  • Accelerator pedal released: Approx. 22%
  • Accelerator pedal depressed: Approx. 92%
TPCT (TP sensor No. 1 voltage at CTP) V Input
  • Ignition switched ON (engine off): Approx. 0.5 V
TPCT2 (TP sensor No. 2 voltage at CTP) V Input
  • Ignition switched ON (engine off): Approx. 4.5 V
VPWR (Battery positive voltage) V Input
  • Displays battery voltage
VSS (Vehicle speed) KPH, MPH Calculation
  • Displays vehicle speed
VT_Adv_CM
  • Displays in the M-MDS but it does not operate.
VT_CM
VT IN_ACT (Actual intake valve timing) ° (deg) Calculation
  • Displays actual intake valve timing
VT IN_DES (Desired intake valve timing) ° (deg) Calculation
  • Displays desired intake valve timing
VT_EX_ACT (Actual exhaust valve timing) ° (deg) Calculation
  • Displays actual exhaust valve timing
VT_EX_DUTY (OCV control) % Calculation
  • Idle (after warm up): Approx. 0%
  • Racing (engine speed is 2, 000 RPM): Approx. 40%
(1) MTX
(2) ATX
(3) U.S.A. and CANADA
(4) Performs retard correction (negative indication) according to the occurrence of engine knock, and it approaches approx. 0° by the advance correction due to engine knock suppression.