What does code P1548 mean?

Q: What does code P1548 mean?

A/C Recirculation Circuit. P1548 on Chrysler vehicles indicates that the powertrain control module (PCM) has detected an electrical fault in the air conditioning (A/C) recirculation circuit, which controls the blend door that switches between fresh outside air and recirculated cabin air. The PCM monitors the circuit for abnormal voltage or current and sets this code when the signal does not match expected values.

DTC codes / Chrysler codes / P1548

P1548 · ChryslerA/C Recirculation Circuit

P1548 on Chrysler vehicles indicates that the powertrain control module (PCM) has detected an electrical fault in the air conditioning (A/C) recirculation circuit, which controls the blend door that switches between fresh outside air and recirculated cabin air. The PCM monitors the circuit for abnormal voltage or current and sets this code when the signal does not match expected values.

SystemPowertrain

Code typeChrysler specific

SeverityLow

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.