Does the radiator fan relay and powertrain control module work off same electrical box? Cooling fan will not kick on. Took part that was suppose to be fan relay but when ordering part by number on part was told it was the powertrain control module. So I have two part stores saying this part is a different part.
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Mercury Cougar 1983 to 1997 Factory workshop Service Repair Manual
Checking the wiring diagram shows that its built into the pcm. Have you checked and confirm there are no blown fuses? There is a 60amp fusible link feeding that side of the pcm. I doubt the pcm itself is at fault. How do you know its not the fan at fault?
SOURCE: 2000 jeep cherokee overheating
Boy ken are you lucky I just went through this with a customers jeep. The cooling fan controll relay/module is behind the right headlight- but not that easy. I had to remove the battery,fusebox and loosen the wiring harness to get to SEE it. when u remove the headlight you can't see it because of the plastic under/behind it. look down from the top on the top of the inner fender well(behind/under headlight) and see a little box aprox.1.5"x1.5"x3/4"thick. it has 3 wires going to it. remove the two 8mm mounting bolts(near impossible) and replace it. I hate to admit this but it helped to drill a hole int the headlight bucket to get straight to the bolts to properly mount it again. when you get the part from the dealer it comes with new mounting hardware and is only about $45 retail. OOOhh yeah don't expect the fan to come on right away after you replace the module. Turn on the a/c and give it 2-5 minutes to come on while engine is running. I'll keep an eye out for ya if you need more info..
SOURCE: Constant Control Relay Module
wire into your hot side of air bypass solieniod and to ground near battery wire into yuor fan that will do the trick
SOURCE: replaced cooling fan relays,the cooling fan
remove the cooling fan relay you should have power on the pink and black wire and the solid red wire going to the base for the relay if you do then check then turn the a/c on and check for your ground sigal from the darkgreen and white wire if no ground you have a bad fan control module located on the right side of the engine compartment
SOURCE: 2003 Audi TT Quatro Coupe.
The main reason for the over heating of the audi tt is to do with the water pump. The propeller within the first type of water pumps is made of plastic. This was to prevent corrosion, however was never designed to last longer than 5 years. What you need to do is purchase the new style water pump. These new style water pumps have been designed with a metallic propellor which should resolve the overheating. Let us know how you get on.
SOURCE: Location of powertrain control module on 01 PT Cruiser?
The PCM attaches to a bracket welded on the dash panel
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