I have been reading forums and wondering what power cycling is in regards to the Hybrid prius. Could someone explain this to me... thank you

 

Could you provide a reference? I've not heard of "power cycling" before.

BTW, has the FAQ helped?

Bob Wilson

 

I purchased a 2006 Prius (13,500 miles) a couple of days ago, and this is my first post. This looks like a good online community, and I'm happy to be a part of it.

However, my Prius is a bit on the ill side. This morning, after about 20 minutes of driving, the MIL, CEL, VSC and brake warning lights all came on at the same time. Lost cruise control and A/C. VSC and brake lights reset after power cycling, and cruise and AC. MIL and CEL stay on. I repeated the issue on the way home this afternoon.

Stopped at my local Autozone, where the friendly scanner pulled the following codes: P1118 (fuel/air metering) and P0A93 (inverter cooling). Does anyone have more info on these codes. I have a dealer service appointment set up for mid-next week, but I don't think I should drive the Prius again until it goes to the dealer in case one of the issues is an overheating inverter.

and here is the page with more talk of power cycling
http://priuschat.com/forums/gtsearch...r+cycling#1317

Your info, expertise and feedback are appreciated in advance!

 

Hi Anna,

It took me a while to figure out what was going on. When you quote another message, it would help if you would put the quoted material inside of the quote tags. These are "[", "quote]" and "[", "/quote]". At a minimum, please use quotation marks and italics.

Now that I've had a chance to read that section, "power cycling" just means turning the Prius off and on.

Bob Wilson

 

Check the 12V battery. It may be fine, but unexplained codes/problems can be caused by a bad 12V battery. You can check the voltage under the hood - no need to open the hatch. In the fuse box on the drivers side (under the hood) there is a red flip-up piece of plastic. The terminal under it is the "boost terminal" and is connected (through a fuse) to the 12V battery. Use the bolt above that on the firewall as ground. You should see 12V +or- 0.4V with the car off. If it's 11V or lower that battery may need either charging or replacement.

You can also see the inverter coolant tank to the left of the fuse box (when you are facing the car). If the level is low there is something wrong.

Two quick things to check.

 

Toyota dealers will replace your inverter coolant pump for free (code POa93) under extended service recall