Owners Forums for Ford and Volkswagen MPVs / SUVs

The engine cooling fan is permanently off and the engine over heats and the aircon is not working.

I understand that the fan should start when aircon is switched on via dash sector.


Main dealer charged 100 to tell me that it shows fault code p0691 (low volage) and wants another 300 to diagnose (not repair it)

Members told me that often wiring fails a pink wire prone to breaking

I have a probe and multimeter and test leads, can anyone tell me the pin outs and voltages, so I can test,

The fan is a single electric fan with controller.


I have applied 12v direct to the fan and it works fine,


any anyone tell me the readings or volts required each side of the module, and where the "pink wire" runs to and from ( I am thinking to simply run a jump wire or test the volts before stripping all the loom down).

anyone know where I can get a wireing diagram? and where the cooling sensor is located.

my vehicle is:-
2008 Galaxy GHIA  automatic.
1997cc TDCI 140.

all sugestion and help really appreciated 

If I remember correct the wire that corrodes on smax is behind the bumper under nearside headlight.

The topics listed above tell you where (in the passenger side wheel arch, iirc) the module is on the Mondeo.  I would be surprised if it is located elsewhere on other models based on the same floor pan but it is possible.

You are almost certainly correct.  You are going to have to cut back the harness wrapping to trace the wire.  My understanding is that, somewhere in the engine bay, the wire joins another harness and the joint is where the problem (usually corrosion, visible as green dust or colour change of the wire insulation) will lie.  This seems to regularly be the cause of issues in the Mondeo.