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Home >> Mazda >> 2025 >> CX-5 S Select >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine (VIN L) >> Engine Control System Operation Inspection >> Related PIDs >> Overview
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Related PIDs: Overview

RELATED PID SPECIFICATION

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


RELATED PID SPECIFICATION

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
ECT °C, °F Engine coolant temperature
  • 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


RELATED PID SPECIFICATION

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
FUELPW Sec Fuel injector duration
  • 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
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 [VIN L (WITHOUT CYLINDER DEACTIVATION)] .)


RELATED PID SPECIFICATION

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 90.58%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.52 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 45.49%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.26 V
EVAPCP % Purge solenoid valve duty value
  • Racing (Engine speed 2, 000 rpm): Approx. 4.7%
  • Racing (Engine speed 4, 000 rpm): Approx. 35.35%
MAF g/Sec Mass air flow
  • Displays MAF
V
  • 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})
LOAD % Engine load
  • 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%
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 [VIN L (WITHOUT CYLINDER DEACTIVATION)] .)
  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.
  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 30s or more.
  7. Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 2.


RELATED PID SPECIFICATION

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 90.58%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.52 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 45.49%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.26 V
ECT °C, °F Engine coolant temperature
  • 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
  • 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})
LOAD % Engine load
  • 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%
TP_REL % Throttle position signal (relative value)
  • Accelerator pedal released: Approx. 12 %
  • Accelerator pedal depressed: Approx. 82%


RELATED PID SPECIFICATION

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 90.58%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.52 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 45.49%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.26 V
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