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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Pcm (VIN C & VIN D) (4 Of 5) >> DTC P2183-00: ECT Sensor No. 2 System: Function Malfunction

DTC P2183-00: ECT Sensor No. 2 System: Function Malfunction

P2183: 00 (PCM (H3T)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location ECT sensor No. 2 system: Function malfunction
Detection condition
  • When the following conditions are satisfied, the temperature difference between the ECT sensor No. 2 and average of the ambient temperature sensor, IAT sennsor No. 1, and transmission fluid temperature sensor excluding the maximum value is outside the specified range for a predetermined period of time.
    • Before starting the engine, leave the vehicle with the engine turned off for 6 h or more.
    • Battery voltage: 8.0 V or more
    • Ignition is switched ON is operating (engine off or on)
    • Ambient temperature: -10°C {14°F} or more
    • The following DTCs are not detected
  • ECT sensor No. 2 system: P2184: 00, P2185: 00
  • Malfunction in instrument cluster: P2610: 00
Fail-safe
  • Not applicable
Possible cause
NOTE:
  • In a vehicle equipped with an external engine heater, a DTC may be detected when the temperature around the sensor rises due to activation of the engine heater.
  1. ECT sensor No. 4 connector or terminal malfunction (See CONNECTOR INSPECTION .)
  2. ECT sensor No. 3 connector or terminal malfunction (See CONNECTOR INSPECTION .) 3. Water-cooled intercooler coolant temperature sensor (ECT sensor No. 2) connector or terminal malfunction (See CONNECTOR INSPECTION .)
  3. ECT sensor No. 4 malfunction (Refer to [ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION ] in service information).
  4. ECT sensor No. 3 malfunction (Refer to [ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION ] in service information).
  5. Water-cooled intercooler coolant temperature sensor (ECT sensor No. 2) malfunction (Refer to [ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION ] in service information).
  6. PCM malfunction (Refer to [PCM REMOVAL/INSTALLATION ] in service information).
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
  2. Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
    1. Start the engine and stop the engine after 5 s or more have elapsed.
    2. Leave the vehicle for 6 h* or more. *For vehicles equipped with an external engine heater, do not operate the engine heater.
    3. Leave the ignition ON (engine off) or idle for 1 min.
System Wiring Diagram
  • Not applicable
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