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Post by endamc on Aug 24, 2022 20:04:53 GMT
Hi,
I have a strange issue with my 2018 A4 Allroad, First thing that i noticed was the option to put the Ac on ECO mode was gone from the AC control unit, the kids in the back also noticed the display on the rear AC control unit was blank, All the Ac functions seemed to work as normal, blowers work rear temp control worked, While trying to diagnose the fault with the AC display unit and Eco options i also noticed that the control switches for the Heated seats in the front were dead, pressing them no lights come on,
3 days later, ever fuse checked and double checked( all ok). Scanned with OBD and found faults on the AC control module, ( control Module not coded U101300) another couple of days with OBD Long coding i have my Aircon issues all resolved,
This leaves me with the issue of the Heated seat control buttons not working, Tonight again me and OBD ran some more tests and managed to find an output test for the heated seats and ran, the seats are 100% heating up under the test conditions,
I can't for the life of me figure out how to get these working again, all the hardware is working ok it seems to have lost the coding/settings I have enabled seat_heating_front in central electrics and enable_seat_heating_multibox_found i have tried all 3 options without any success,
Up until now i have only be doing very basic adaptations with OBD so would consider myself a newbie,
I'm hoping one of you more experienced ObdElvener's could have an answer for me
Thanks Enda
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Post by sainikaranveer on Sept 14, 2024 3:37:50 GMT
Hi i am facing the exact same issue with my A4 2018. On test, seats are working with obd. Did you figure out ? How to resolve the issue. If possible please reply it will be really helpful
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