laradragon10
Santro Overheating and Control Unit Error
Summary of the thread
A 2020 Hyundai Santro with a gasoline engine is experiencing overheating, a check engine light, and coolant leakage, indicating possible over-pressurization. The suspected cause is a control unit communication error, potentially due to a defective cable or plug. The solution involved inspecting and resolving a connectivity issue, specifically a defective cable/plug connection, which was confirmed and repaired.
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4 comment(s)
laradragon10 (community.author)
A bad data link, interesting. What exactly was the fix? Was it a straight forward process or were there other hidden issues?
uwestorm1
Well, in my case, they suspected that poor connectivity was the main culprit, and checking the CAN bus was the first step to take. They suggested I take it to a workshop, since these things can be hard to diagnose. They connected it to a diagnostic tool, read the computer, identified the error.
laradragon10 (community.author)
Thanks for sharing your experience. As suspected, a defective cable/plug connection was causing the communication error with the control unit. After inspection, the connectivity issue was solved. Final repair cost: 95€.
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HYUNDAI
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SANTRO
uwestorm1
Sounds familiar. I had similar overheating issues with my old Opel Corsa. Engine light, coolant leaks, the whole deal. In my case, it turned out to be a bad data link. Any luck identifying any software glitch while the check engine light is on?