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Almera Engine Overheating Communication Error

Hey, I have a 2017 Nissan Almera with a gasoline engine. Check engine light is on, and the engine overheats. I've noticed coolant spilling under the car, probably from excessive pressure. I scanned for error codes, and it points to a control unit communication error. I checked the obvious stuff but suspect a bad connection somewhere. Has anyone seen anything similar?

A 2017 Nissan Almera experienced engine overheating and a check engine light, with coolant leaking due to excessive pressure. Diagnostic scans indicated a control unit communication error, likely caused by a bad connection. The issue was resolved by identifying and repairing a defective connector on the engine control module (ECM), as suggested by another individual who had faced a similar problem.

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4 comment(s)

I had a similar issue with my Almera. Check the cable and plug connections to the control modules. A defective connection can cause all sorts of weird issues, including communication faults which trigger all the symptoms you describe.

Thanks for the tip! Could you be more specific about which control module cable/plug you're referring to? There are quite a few...

In my case, the issue was with the engine control module (ECM). The diagnostic pointed to a communication fault, just like yours. I'd suggest taking it to a workshop to have them check the wiring harness and connections thoroughly. It will save you a lot of time.

Thanks, I appreciate the advice. I took it to the shop, and you were right, it was a defective connector on the ECM. The total repair cost was 95€. Thanks again for pointing me in the right direction!

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NISSAN

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ALMERA