Go Back  AudiForums.com > Audi Tech > General Tech
17704 P1296 Error in mapped cooling system >

17704 P1296 Error in mapped cooling system

General Tech Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

17704 P1296 Error in mapped cooling system

Old 11-27-2009, 01:03 PM
1st Gear
Thread Starter
Join Date: May 2007
Location: Chicago, IL
Posts: 26
Default 17704 P1296 Error in mapped cooling system

Hello, I have a 2002 A4 1.8TQ and I am getting the above code. On start-up the front fan in the engine bay (radiator fan or just next to it?) runs and stays on while the car is on. The temp gauge in the dash is always at C or just above no matter how long the car has been on or running (4.5 hour drive for Thanksgiving and never moved toward the center).

I read a similar post and determined that it may be the coolant sensor so I replaced that the other day but I am still getting the code. I have also read that if you changed the sensor and it isn't fixed that it may possibly be the thermostat.

My question is, do I just need a new thermostat due to these symptoms or is there a possible "fix" to the thermostat's behavior that may lead to the solution? I have read about it being "stuck open" (although that seemed to be with overheating so possible mine is "stuck closed"?) and causing issues with the coolant system/temp gauge/etc so I was curious as to my best course of action.

Any help/advice is appreciated. I am a fairly intelligent guy but not so much when it comes to under the hood of a car so feel free to talk to me like you would a 12 year old to save yourself numerous return questions.

Thank you much.
Old 12-01-2009, 01:29 PM
1st Gear
Thread Starter
Join Date: May 2007
Location: Chicago, IL
Posts: 26

Old 01-11-2010, 02:32 PM
1st Gear
Join Date: Jan 2010
Location: Kansas City burbs
Posts: 5

Currently having the same problem on mine and replaced the sensors and the CEL comes back. Fan still starts from first start up when the car sat overnight. I also had the problem of car stalling out until it got a little warm. Still trying to solve.
Old 01-16-2010, 10:05 PM
Audi Tek's Avatar
Tech Certified
Join Date: Jul 2009
Location: Connecticut
Posts: 779

Generally the way you want to go at this....

is replace the coolan temp sensor

then the thermostat

then the water pump....

those are the only three things that cause this fault.... and they are listed this way due to price and ease...
Related Topics
Thread Starter
Last Post
Audi A6
06-05-2014 09:01 AM
ll Jreal ll
B5 Models
05-19-2014 12:23 AM
B5 Models
11-17-2010 01:13 PM
B6 Models
01-17-2009 09:22 AM
Audi A4
12-21-2006 12:37 AM

Thread Tools
Search this Thread
Quick Reply: 17704 P1296 Error in mapped cooling system

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.