I have a quick question.. Am I suppose to get some kind of reading off the connection from the wireharness to the thermostat housing? And if so.. what kind of reading ?

Thank you...

 

Reading for what? The two connections on the thermostat are for coolant temperature (top), and temperature control.

 

I'm looking at the thermostat itself. Should I get some kind of voltage off the connection?

 

You might get some resistance across the terminals. Are you trying to see if it’s good or not?

 

So my issue is.. I've put 3 thermostat housing on it and still getting the P0597 and at this point I'm wondering it something in the wireharness is the issue. That's why I'm about the connection from the wireharness to the thermostat.

 

I literally JUST replaced my thermostat for that code today! Hopefully, my code doesn’t come back.

I assume you are getting new thermostats under warranty each time?

Have you replaced the harness adapter?
Production up to 7/12
https://www.ecstuning.com/b-genuine-...r/12518611289/

Production from 7/12 to 2/13
https://www.ecstuning.com/b-genuine-...r/12518614952/

 

All have a one year warranty to 2 year. And I was looking at that but not sure it it works on my 2007 mini Cooper S. Or what it does lol.

 

Did some quick search, and it looks like you don’t need that kit, only the early N18 cars.

I would check the harness connectors to make sure there isn’t any corrosion on them. If there is, I believe ECS can get new connectors to splice onto your harness. I would find it hard to believe three thermostats in a row would have issues.

 

That's my thought. Also I was hoping to see if the wireharness connection would produce some kind of voltage so I know if it's working.

 

I couldn’t find any information on that in my searches.

 

Yeah I've spent a few days looking. Trying to find any electrical info on this car is a nightmare. I was hoping someone here would know.

 

Are you using OEM or aftermarket thermostats? Reports on the forum are mixed for aftermarket.

 

First 2 where aftermarket the third was an oem/ oem replacement.

 

P0597 is heater control open circuit. Depending on the year and type of thermostat you have the one on top, but also a connector at the lower back. The P0597 should be associated to the connector in the back AFAIK. As others mentioned, you should see some resistance between between some of the pins (maybe it's X6279 in Newtis). You should check the pins in the connector, and also check for continuity to the DME connector.

 

The Bentley manual has wiring diagrams.

 

So, my car has the P0597 codes stored in the permanent memory, but I do not have a CEL on the dash board. Is this what you are seeing? In my research to find out how to clear them, I found this article:
https://www.bar.ca.gov/Industry/Indu...ble_Codes.aspx

Notice paragraph 1. To clear a permanent code, you need to fix the problem and let the car determine that the problem isn’t there anymore, and it will clear the code on its own.

Not sure if this is your case or not, but that’s what I’m currently dealing with after replacing my thermostat.

 

So when I check the connection it looks ok. I cleaned it with an electronic cleaner and let it dry for a few hours. If I put my multimeter to the plug from the harness I don't get any kind of readings with the car on or off. I've also drove the car for a few days to see if the code will clear. The car right now is also in limp mode... Killing me I miss my turbo.. should I bet getting some kind of readings off the connector itself ?



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