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Home >> Mazda >> 2019 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 3) >> DTC P0113-00: IAT Sensor No. 1 Circuit High Input >> Notes
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DTC P0113-00: IAT Sensor No. 1 Circuit High Input: Notes

DTC P0113:00 (PCM, SKYACTIV-G 2.5T) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0113:00 IAT sensor No. 1 circuit high input
DETECTION CONDITION
  • The PCM monitors the IAT sensor No. 1 signal. If the PCM detects that the IAT sensor No. 1 voltage at the PCM terminal 2AX is above 4.62 V for 5 s, the PCM determines that the IAT sensor No. 1 circuit has a malfunction.

    Diagnostic support note

  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
  • Fixes the intake air temperature (for engine control) at 20°C {68°F}.
  • Inhibits the fuel cut control during shift change.
POSSIBLE CAUSE
  • MAF sensor/IAT sensor No. 1 connector or terminals malfunction
  • PCM connector or terminals malfunction
  • IAT sensor No. 1 malfunction
  • Short to power supply in wiring harness between MAF sensor/IAT sensor No. 1 terminal A and PCM terminal 2AX
  • Open circuit in wiring harness between the following terminals:
    • MAF sensor/IAT sensor No. 1 terminal A-PCM terminal 2AX
      • MAF sensor/IAT sensor No. 1 terminal B-PCM terminal 2AY
  • PCM malfunction
G13444205Courtesy of MAZDA MOTORS CORP.
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.