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Coolant System Malfunction - temperature guage not workingViews : 1044 Replies : 5Users Viewing This Thread : |
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New Member
Last Online: Jun 10th, 2024 17:07
Join Date: Sep 2023
Location: Northern Ireland
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Hi all, I'm new to the forum, have a 2015 V40 RDesign Lux D4 Vea.
I bought the car with this fault "coolant system Malfunction, service required". I replaced the coolant temperature sensor about 5 months ago with a genuine Volvo replacement, and it didn't fix it immediately, but after about 2-3 days it just began to work, and continued for about 3 months. Fast forward to now, I'm back having no coolant temperature reading on the dash most of the time, although sometimes when you start the car the reading shows for about 5 seconds and then goes back down to the bottom. I had it plugged into VIDA and I got 2 codes for intake air temperature sensor (which I have now cleaned as it was caked in soot), one code for coolant temperature sensor, 2 codes related to invalid data received from ECM/PCM and one code for software incompatibility with ECM/PCM. I'm struggling to know what to do next with it, I can't understand the reason why it shows a reading at times or 5 seconds on start up then it goes away again. Any help greatly appreciated |
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