Hi all,
So I bought a 2005 Golf TDI BEW PD around half a year ago. This car is a rebuilt and I think the previous owner might have fiddled around with the electrical wiring. When I bought this car, the ac clutch and both fans do not kick in. When I press the ac button inside the cabin, it does light up.
So far what I have done:
-jumped ac compressor with 12v and the clutch would engage and spin and there's ac in the cabin
-jumped fans directly with 12v and the low speed and high speed would engage
-jumped the radiator fan temp switch plug for pins 1 and 2, and 2 and 3 and low and high speed both work respectively
-changed fan control module
-changed G65 pressure switch
-confirmed fuses on top of the battery and the side panel of the driver seat are good
-inspected the ambient temperature sensor and its good
Why I think the previous owner fiddled with the electrical wiring is because he installed an aftermarket stereo deck and a subwoofer. And I realize the wire coming out from fuse 5 is not giving 12v to the heated seats, which also gives power to the cooling fans. I tried jumping the wire of the heated seat that connects to fuse 5 and that gave me heat on both the driver and passenger seats. However, I checked for 12v at the T10/9 pin of the FCM and at the pressure switch, which both have 12v supplied by fuse 5, and they both have 12v.
One question I do have though is, the ambient temp sensor is connected by two wires, and I have another two wires that's taped together that is not connected to anything. Wondering if anyone knows what those two wires are for? I'll take a picture and post it here as well.
So if anyone could give me some advice for this problem it would be greatly appreciated.
So I bought a 2005 Golf TDI BEW PD around half a year ago. This car is a rebuilt and I think the previous owner might have fiddled around with the electrical wiring. When I bought this car, the ac clutch and both fans do not kick in. When I press the ac button inside the cabin, it does light up.
So far what I have done:
-jumped ac compressor with 12v and the clutch would engage and spin and there's ac in the cabin
-jumped fans directly with 12v and the low speed and high speed would engage
-jumped the radiator fan temp switch plug for pins 1 and 2, and 2 and 3 and low and high speed both work respectively
-changed fan control module
-changed G65 pressure switch
-confirmed fuses on top of the battery and the side panel of the driver seat are good
-inspected the ambient temperature sensor and its good
Why I think the previous owner fiddled with the electrical wiring is because he installed an aftermarket stereo deck and a subwoofer. And I realize the wire coming out from fuse 5 is not giving 12v to the heated seats, which also gives power to the cooling fans. I tried jumping the wire of the heated seat that connects to fuse 5 and that gave me heat on both the driver and passenger seats. However, I checked for 12v at the T10/9 pin of the FCM and at the pressure switch, which both have 12v supplied by fuse 5, and they both have 12v.
One question I do have though is, the ambient temp sensor is connected by two wires, and I have another two wires that's taped together that is not connected to anything. Wondering if anyone knows what those two wires are for? I'll take a picture and post it here as well.
So if anyone could give me some advice for this problem it would be greatly appreciated.
AC not working!!
