P0538

2017-10-10

Description:

  • The fault code P0538 indicates that there is an issue with the circuit that controls the A/C evaporator temperature sensor. This may cause the A/C system to malfunction or not work at all.

Possible Symptoms:

  • Malfunctioning or non

  • functioning A/C system

  • Illuminated A/C or check engine light

  • Reduced cooling output from the A/C system

Possible Causes:

  • Faulty A/C evaporator temperature sensor

  • Short circuit in the A/C evaporator temperature sensor wiring

  • Corroded or loose connections in the A/C system wiring

  • Failed engine control module (ECM)

Related Parts:

  • A/C Evaporator Temperature Sensor: Prevents the air conditioning refrigerant from becoming too cold. Problems lead to reduced AC cooling

Possible Solutions:

  • Replace the faulty A/C evaporator temperature sensor

  • Repair any damaged wiring or connections in the A/C system

  • Tighten or clean any loose or corroded connections in the A/C system wiring

  • Replace the engine control module (ECM) if necessary

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