P0691 fault Citroen C5 RC 2004

[Surgi]

Hi there.

Got an issue with the radiator fan, it works only on a high speed, got scanned a car recently, so there is some fan related fault which won't clear. Radiator fan new, after market. Fuses looks ok. Anyone had similar problem with that or could give me good advice please?

I have attached few files with the faults and readings. Looks like thermostat work fine, as it show normal temperature.

Thinking, may be it's a wired it self shorted or damaged. 6568EH wiring loom.

Tried to connect a lexia with diagbox, but it's not connecting.

Thanks

[mickthemaverick]

I do not know enough about the setup on your car but as a general point if the fan only runs at high speed the problem is often the resistor pack which is used to drop the voltage for lower speeds. I believe it was mounted under the dash near the heater casing on my old C5 but that is only an idea so don't quote me on it

[Paul-R]

Rad fan resistor packs are surely located near the front of the engine bay so that they can benefit from cooling air flow when operating. In fact, reduced airflow could be a cause for premature failure for one of the resistors inside the pack.

[Surgi]

Thanks for suggestions. Fuses looks ok. checked by electricians recently. Possibly wiring damaged (