Water temperature light flashing red and blue., car will not crank over

2010 SUBARU LEGACY
159,000 MILES • 2.0L • 4WD • MANUAL
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NORBERT87
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Please someone help me and explain what can cause this? The car is staying outside in a parking. Every time it started for the first ignition turn. it is -9C outside but it started in colder conditions as well.
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Jan 22, 2019 at 3:34 AM
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STRAILER
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Hello,

Thanks for the video, it helps a lot. It looks like the battery needs to be replaced. here are two guides to help confirm the failure and walk you through the battery replacement:

https://www.2carpros.com/articles/car-battery-load-test

and

https://www.2carpros.com/articles/how-to-replace-a-car-battery

Check out the diagrams (below). Please let us know what you find.
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Jan 23, 2019 at 12:00 PM
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STRAILER
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If your battery is okay a controller is going out. Let's do a CAN scan to see what's going on. You can get a CAN scanner (Controller Area Network) from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Please go over these guides and report back.
Mar 4, 2023 at 12:07 PM
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