Ford P1437: A/C Evaporator Temperature (ACET) Circuit High Input
Is your scanner showing Ford P1437?
No worries. We'll show you what it means and how to deal with it.
Ford P1437: A/C Evaporator Temperature (ACET) Circuit High Input
OVERVIEWWhat Does The Ford P1437 Code Mean?
Key on or engine running; and the PCM detected the ACET signal was more than the self-test maximum amount of 4.5v in the self-test.
What Are The Potential Causes Of The Ford P1437 Code?
- ACET signal circuit is open, or the ground circuit is open
- ACET signal is shorted to VREF
- ACET sensor is damaged or has failed
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Replacement A/C Evaporator Temperature Sensor Compatible with Ford
>>> Cardone 78-4937 Remanufactured Ford Engine Control Module (ECM) / Computer (Renewed)
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
2007 Powertrain Control Emissions Diagnosis On Board Diagnosis – Sections 4: Powertrain DTC Charts and Descriptions, P1437, pages 103-104.
