P0538
A/C Evaporator Temperature Circuit High Input
Generic code
Vehicle Speed and Idle Control System
Low severity
Hard repair
Free on OBD DashX
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What P0538 means
- 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
Free on OBD DashX
P0538 on OBD DashX
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