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DTC P0538:00: Notes

DTC P0538:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0538:00 Evaporator temperature sensor circuit high input
DETECTION CONDITION 
  • If the input voltage is 4.9 V or more  for 16 s or more  , the PCM determines that the evaporator temperature sensor circuit has a malfunction.

    Diagnostic support note 

  • This is a continuous monitor (other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Evaporator temperature sensor connector or terminals malfunction
  • Evaporator temperature sensor malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between evaporator temperature sensor terminal B and PCM terminal 1AW
  • Open circuit in wiring harness between the following terminals:
    • Evaporator temperature sensor terminal B-PCM terminal 1AW
    • Evaporator temperature sensor terminal A-PCM terminal 1AG
  • PCM malfunction
G06940401
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