overheating peugeot 406

[marky1963]

peugeot 406 rapier 2000 model

My car is overheating, how can I test the fan switch?

[MrBiggles]

From your posting I assume you have narrowed down the overheating issue to the fan not cutting in.

Have you located the heat sensor controlling the fan?
If so you should be able to simply short circuit the connector ( U-shaped wire on the end of the cable connector. The fan should then cut in. If it doesn't - there may be a problem with the relay, a fuse or other electrical issue. Then follow a process of elimination.

Let us know how you get on and give as much info as possible.

All the best.

[marky1963]

Thank you Mr Blinky,

It appears that the overheating issue was caused by me switching on the a/c unit! The fan does work after all and when I put the a/c on the overheating light comes on and I get a warning. Is this possibly a faulty relay/switch or can the a/c cause a problem in itself?

Thank you for your help it is much appreciated.
Mark