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Home >> Mazda >> 2016 >> CX-5 Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine Controls >> Engine Control System Operation Inspection >> Related PIDs
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Related PIDs

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
VT_IN_ACT ° (deg) Actual intake valve timing
  • Displays actual intake valve timing
VT_IN_DES ° (deg) Desired intake valve timing
  • Displays desired intake valve timing


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
ECT °C, °F Engine coolant temperature (No. 1)
  • Displays ECT
V
  • 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
OIL_P_SOL Off/On Engine oil solenoid valve
  • ECT below 98 °C {208 °F} and engine speed below 4, 000 rpm: On
  • ECT above 98 °C {208 °F} or engine speed above 4, 000 rpm: Off
RPM RPM Engine speed
  • Displays engine speed


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
ECT °C, °F Engine coolant temperature (No. 1)
  • Displays ECT
V
  • 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
IAT °C, °F Intake air temperature (No. 1)
  • Displays IAT (No. 1)
V
  • 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
RPM RPM Engine speed
  • Displays engine speed


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
RPM RPM Engine speed
  • Displays engine speed


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
ETC_ACT ° (deg) Throttle control Switch ignition ON 
  • Accelerator pedal released: Approx. 12.89 °
  • Accelerator pedal depressed: Approx. 86.03 °

    Idle (after warm up) 

  • Accelerator pedal released: Approx. 3.2 °
ETC_DSD % Throttle control desired
  • Displays target TP angle (percent)
° (deg)
  • Displays target TP angle


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
FUELPW Sec Fuel injector duration
  • Idle (after warm up): Approx. 1.4 ms
  • Racing (engine speed is 2, 000 rpm): Approx. 1.1 ms
  • Racing (engine speed is 4, 000 rpm): Approx. 1.0 ms
RPM RPM Engine speed
  • Displays engine speed

If data monitor function of M-MDS is not used: 

  1. Warm up the engine and idle it.
  2. Measure the fuel injector control signal wave profile using the oscilloscope while performing the following steps:
    1. Depress the accelerator pedal and increase the engine speed to 4, 000 rpm. 
    2. Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the wave profile constant B+,  and the wave appears when the engine speed drops below 1, 200 rpm.  (See PCM INSPECTION .)


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 82%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.1 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 41%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.05 V
EVAPCP % Purge solenoid valve duty value
  • Racing (Engine speed 2, 000 rpm): 4.5-56%
  • Racing (Engine speed 4, 000 rpm): Approx. 56%
MAF g/Sec Mass air flow
  • Displays MAF
V
  • Switch ignition ON (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V
  • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V
LOAD % Engine load
  • Idle (after warm up): Approx. 16.07%
  • Racing (engine speed is 2, 000 rpm): Approx. 14.51%
  • Racing (engine speed is 4, 000 rpm): Approx. 21.17%
TP_REL % Throttle position signal (relative value)
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal depressed: Approx. 82%

If simulation function of M-MDS is not used: 

  1. Start the engine.
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
  4. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
    • If there is a vacuum, inspect the following:
  5. Set the vehicle on a dynamometer or chassis roller.
    WARNING:
    • When the dynamometer or chassis roller is operating, there is a possibility that the operator may come into contact with or be caught up in the rotating parts, leading to serious injuries or death. When performing work while the dynamometer or chassis roller is operating, be careful not to contact or be caught up in any of the rotating parts.
  6. Drive the vehicle at an engine speed to approx. 2000 rpm for 30 s or more.
  7. Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 2.
    • If there is no vacuum, inspect the following:
    • If there is vacuum, inspect the following:
      • Vacuum hose (Purge solenoid valve-Charcoal canister)


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 82%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.1 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 41%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.05 V
ECT °C, °F Engine coolant temperature (No. 1)
  • Displays ECT
V
  • 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
MAF g/Sec Mass air flow
  • Displays MAF
V
  • Switch ignition ON (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V
  • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V
LOAD % Engine load
  • Idle (after warm up): Approx. 16.07%
  • Racing (engine speed is 2, 000 rpm): Approx. 14.51%
  • Racing (engine speed is 4, 000 rpm): Approx. 21.17%
TP_REL % Throttle position signal (relative value)
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal depressed: Approx. 82%


Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 82%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.1 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 41%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.05 V
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