20 Most Recent 2009 Toyota Prius Questions & Answers

Check the antenna connection where it connects to the stereo it may be loose or not in all the way.

you may have a wire shorting out or a bad connection not plugged in something like that or even a bad ground. or a bad component. check with the dealer to see if they had any recalls or service notices for your car to help with your issue. they may want to charge you to fix it but unless they know what the issue is that may be vary costly.

if you have no check engine light it is probably fuel related change fuel and air filter first

get it serviced, it's a Prius. ( a very complex car, Nasa like complex) scan it first. ever seen a scan tool scan it then post the DTCs on a real prius forum. check fuses. (not HV fuses or get dead)

Battery in remote needs changing

Mine did the same thing and I just had to replace the battery with battery #2032. Here is a video on how to change the battery on the key fob on a 2009 and earlier model. https://www.youtube.com/watch?v=Ve3lzCktsDg

It's the check engine light.. Take it down to Auto Zone or another auto parts store And have them check the engine codes. It could be something like a sensor or something more serious.

prius huh, one of the most complex cars made and you want DIY diagnosis? ever work high voltage and currents? if not get it fixed. first connect a prius aware scan tool and see if there are more DTCs. Trouble Code: p0a94 DC / DC Converter Performance Trouble Code Conditions: The monitor will run whenever the following DTC is not present: - Boost converter overvoltage (OVL) signal detection (circuit malfunction) Possible Causes:

• * Inverter with converter assembly

this is high voltage system, and has killed mechanics fiddling it with out HV certifications.

so look it up, toy hybrid? what engine of the many and what country? the first rule is to use only Toyota DTC codes, or fail. were did you see this at JiPHPYboobs? or autozoned? did you write it down correctly or someone just yelled it out? i get zero hits here, how can that be, (very odd) http://priuschat.com/search/16649402/?q=p1211&o=date&c[node]=12 or anywhere, and is missing on my online FSM too. so.>>>>??