searched-Engine code p0597, p0598

I drive a 2009 Aveo5 LT. The car only has 33k miles on it. Oil has been changed properly since I've owned it. Only had it for a little over 6 months. Over the past few days my engine light has been coming on for a couple days, then going back off for a couple days, then back on and so forth. Well, it came back on today so I took it to Auto-zone to get the code ran for free. It came up with two codes, p0597 and p0598. If I remember correctly they meant something to do with thermostat controller, or bad wiring. We (me and the employee) noticed that when we pulled the codes on the computer, it said it was for a Volkswagen. Anybody else ever had this sort of problem? The car itself runs fine for the most part. It does has a little hiccup every now and then while idling at a red light.

are you positive those were the codes?

p0597 and p0598 say heater control related?
(only thing other than replacing it is checking connection or if you have an aftermarket radio or something..)

i dont see why either would come up as vw unless his cheap scanner mis-crossreferences vag codes into one of those numbers.

Yeah I have no idea why it came up as vw. I'm going to set up an appointment with the chevy place this afternoon to see what they can come up with. Everything is still stock on my car, even the sound system. Not sure why its giving me codes. Heater works fine, temps are normal. It gave me both of those codes twice.

DTC P0597: Engine Coolant Thermostat Heater Control Circuit

DTC P0598: Engine Coolant Thermostat Heater Control Circuit Low Voltage

Thats straight from GMs Service Information

adding "coolant thermostat" into the definition helps. I would check that, but not sure if the heater control checks coolant temp? i'd have to look into it.

I'm new to the Aveos so I'm not sure about anything on them yet. I've always had imports that I knew about. I got an appointment with the dealership today at 1:30 so I'll see what they say. It's still under the 100k mile warranty so I figured I'd at least see what they got to say about it. I'll post it up here when I get done.

Well I have access to the Service Manuals being a GM tech for Buick/GMC so if you guys need anything lemme know and I'll be more than happy to help however I can. I'm new to the Aveo (Korean Cars in general) as well but I'm sure I can figure it out.

That's good to know, thanks for the help. So the dealership that I had planned on going to today failed to mention that it is no longer a chevy dealership. It is now a kia place. :confused: They wanted me to drop my car off so they could send it to another dealership. I can't leave me car for that long because I have school and work to go to. Now I gotta wait until Friday morning to take it to another place that's around me. Hopefully this one will still be a chevy place.

I just had the same problem with my 2009 Aveo5 LT. I have 13,000 miles on it and the engine light is on. I went to Auto Zone and they said it was Code P0597. I just wanted to make sure I could drive it safely for a few days until I get it into the dealer. I have the warranty of course, but I hate being without a car. I'm a single parent and it is so inconvenient. Car seems to be running fine.

2011 Chevrolet Aveo Service Manual - Diagnostic Information and Procedures In Engine Cooling Section - RepairProcedures.com -- Electronic Service Information for GM Vehicles

there is a repair procedure listed here, someone whoworks for the gm dealer could look it up for free (not on this site but at work)

I've been driving mine for a few days without having any troubles. I drive 35 mins one way to school everyday. If you need to go anywhere I would say it would be ok. Just get it to the dealership as soon as you can. I have an appointment Friday at 8am to get mine looked at. Thanks for looking out for us petrified.rabbit. I'ma have to get a membership to that site so i'll be able to do this stuff on my own. I love working on my cars, always have because this is the first car I've owned that has a warranty. I'll see what they say tomorrow and let you guys know whats up.

So, got my car back yesterday. They had to replace the engine thermostat housing. The heater went out inside the hosing, so they replaced the whole unit. If I'm not mistaking, I believe the whole housing is pretty much glued together, so once its opened it has to be replaced. Also just as a FYI, if anybody's interior door handles have the chrome covering on them and its peeling or chipping, ask your dealer about replacing them under warranty. One of mine is peeling and after being cut several times by it, I asked my dealer about it and he is replacing it under warranty.

Anyone have any updated information on this?

Now its my turn,

i have a 2009 aveo LT, 82 000 km's.

Same issues here...
The symptoms started years back, i think.

Out in the country roads i noticed in 2 occasions in two years. In really rough road, the temp gauge on my dash dropped completly, then realizing my a/c was also disabled. on both ocasions, it took hours and multiple ignitions to get my gauge and a/c to comeback. I remember at 1 point removing and reinserting certain fuses in the engine fusebox in hopes to regain the display gauge, wich it did...

A year later, The check engine light came on and i got a reader to check the codes.
P0597 and p0598
I then changed the thermostat/housing (not oem) i purchased from an online parts store. (witch might explain another issue.

cleared the codes and within a day, the codes came back.

A week later i removed the thermostat/housing connector and noticed a slight corrosion on 1 of the terminals...
so i managed to find a new connector and replaced that as well...

Now it seems i cleared 1 code wich is P0598 (thermostat heater control circuit low) Altough P0597 remains.

I went to the dealership, 138$ later, they tell me what i already knew and assumed. The Voltage is good on both wires...and that as far as gm knows, i should replace the thermostat/housing or the ecu.

I am Still thinking about the best solution possible. However, if anyone else is dealing with this issues or has in the past, Please contact let us know. I will also update whenever i successfully repair this issue.

Thanks

jacobp89 did your code come back? Hows is your aveo?

Did anyone happen to read what the link had to say? I click on it and page can not be found.