Firstly confirm that you have coolant and that the car isnt overheating. Now turn off the air conditioning, if the STOP light goes out and the car stops beeping at you then all is good, there is nothing wrong with your coolant and coolant temperatures, infact the warning will still come up if the engine is off
This is quite a common problem and usually means your fan, fan speed resistors or relay have thrown in the towel (damned quitters
)Pop the bonnet up and remove the centre grill with the Lion badge.
Start the car and turn on the air con, check to see if your fan is running, if it is stopped then the fan, one of the relays or the wiring is faulty.
If the fan starts, stops, starts stops etc then it is most likely one of the two resistors.
Turn the car off and unplug the fan, check it turns freely, then using a DVM measure the resistance across the pins, if it reads 0 ohms or open circuit then its a duffer, otherwise all ok.
Next check the resistors, remove the plugs and undo the screw holding them in place, visually inspect the resistor (coil of wire) and give it a prod, I found that mine had corroded through thus becoming open circuit and preventing the fan from running at full speed. Do this with both resistors in turn.
Now check the relays, remove the clip on cover on the right hand side. there are several relays, starting at the top unplug and test one by one. To test use a DVM to measure the resistance across the coil of the relay (look on the side of the relay for the pin numbers) if the coil measures 0 ohms or open circuit then shes a duffer. It is also a good idea to measure the contact resistance between the common pin and the NO and NC pins of the relay, these should be less than 1 ohm, if not, then best to replace it.
finally it is a good idea to check the wiring loom for damage or corroded connectors by tracing along the loom and visually checking everything.
Hopefully by this point you should have pinpointed where your problem lies (I hope
)Thanks for reading, let me know what you think, or if there is any other info I should put in.
Fog
