Chrysler Town and Country code P0508, low or poor circuit!

P0508 IAC valve sense circuit low. Fix code P0508 IAC valve sense circuit low If you encounter a problem with P0508 IAC valve sense circuit low on a Chrysler vehicle, here’s how to proceed. The Idle Air Control is a linear solenoid valve that opens based on computer commands to bypass air around the closed throttle plate that occurs at idle. The IAC has a tapered pintle with a corresponding seat in the throttle body. The PCM constantly check return voltage from the IAC to determine if its working and it compares actual RPM with commanded RPM. If the PCM doesn’t see the correct or expected return voltage, it sets a P0508 IAC valve sense circuit low trouble code //// http://ricksfreeautorepairadvice.com/p0508- iac-valve-sense-circuit-low/

Thanks for your answer. So to fix the problem should the Throttle Position Sensor (TPS) be replaced with a new one? And if it does not fix the problem is it possible that the input voltage to the TPS is somehow missing? Is there a relay that connects the 5v current to the input of the TPS? Where such relay is located? Is it possible that the relay is kaput? BR

Tom, Having the same issue and I read that a faulty IAC can fry the computer driver? Did you fix yours and what did it take>???

P 164.8 mean on a 2001 Town and Country