idafrank74

Peugeot 607 Overheating Communication Fault

I have a 2001 Peugeot 607 diesel with 261489 km. Engine overheats, check engine light is on, and coolant is leaking. I suspect a control unit communication error and have checked for obvious wiring faults, but no luck so far. Anyone seen this before?

A 2001 Peugeot 607 diesel is experiencing engine overheating, a check engine light, and coolant leakage, suspected to be due to a control unit communication error. Despite checking for wiring faults, the issue persists. A similar case was resolved by addressing a defective cable or plug connection, suggesting professional diagnosis and repair might be necessary.

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4 comment(s)

Sounds familiar. I had a similar issue on my 607 with overheating and coolant loss. Was it throwing any diagnostic trouble codes related to the CAN bus or any other communication faults?

Yes, it's throwing a communication fault code. Where was the fault located on your car?

Turned out to be a defective cable or plug connection of the component. I spent ages trying to trace it myself and gave up. I ended up taking it to a workshop, they diagnosed it quickly and sorted it for 95€. Probably best to get it checked out properly.

Thanks for the advice. I'll take it to a workshop to get it checked out.

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PEUGEOT

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607