LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2017 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 5) >> DTC P007D-00; Boost Air Temperature Sensor Circuit High Input >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P007D-00; Boost Air Temperature Sensor Circuit High Input: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P007D:00 Boost air temperature sensor circuit high input
DETECTION CONDITION
  • The PCM monitors the boost air temperature sensor signal. If the PCM detects that the boost air temperature sensor voltage at the PCM terminal 2U is above 4.96 V for 5 s, the PCM determines that the boost air temperature sensor 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
  • Not applicable
POSSIBLE CAUSE
  • Boost pressure sensor/boost air temperature sensor connector or terminals malfunction
  • PCM connector or terminals malfunction
  • Boost air temperature sensor malfunction
  • Short to power supply in wiring harness between boost pressure sensor/boost air temperature sensor terminal B and PCM terminal 2U
  • Open circuit in wiring harness between the following terminals:
    • Boost pressure sensor/boost air temperature sensor terminal B-PCM terminal 2U
      • Boost pressure sensor/boost air temperature sensor terminal A-PCM terminal 2J
  • PCM malfunction
G11433197
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.

Related PIDs

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
TP_UP_TEMP V Throttle upstream temperature sensor voltage
  • TP_UP_TEMP is 20 °C {68 °F}: Approx. 3.57 V
  • TP_UP_TEMP is 40 °C {104 °F}: Approx. 2.70 V
  • TP_UP_TEMP is 60 °C {140 °F}: Approx. 1.87 V