Thread: Rear windows intermittent fault

Got a similar problem with my Disco 1, but only on hot days in summer. Which is kinda when ya want the damnthings to work...

Originally Posted by dullbird

I too have the problem but only when I first start the car.....rear windows wont open with in less then 3 mins of driving they work fine....its almost like its waiting for power to get to the relays

You'll find it's probably the ecu solder as stated above. When you drive the vibrations can make the solder contact connect or when it is warm. I had similar symptons and it was the board.

Finally got back to the rpoblem as my aircon crapped out and rather than melt I figgered I better do something.

Pulled out the ECU and the solder is all good. what i did find was that I'm only getting minimal volts (1.2V) across to the switches, anyone know any of the required voltages past the ECU?

Originally Posted by thrower78

I have recently bought a disco 1 and love it have been having problems with my rear windows as well, pulled the circuit board out today and the previous owner has made a hell of a mess of it even scratching some of the green circuit paths. When i got it out a big section of the green part and some copper fell off (probably source of the problem) now the board is completely stuffed. Any ideas on where i could find a new one and how much should just hit up a landie wrecker?

Andrew

You can use wire to replace the copper track that fell off. Easy and permanent.

Simply lay insulated wire along the tracks where the copper was and solder each end to the existing soldered joint. Should work fine.

Good luck.

Regards


Martin

Originally Posted by scottc

Finally got back to the rpoblem as my aircon crapped out and rather than melt I figgered I better do something.

Pulled out the ECU and the solder is all good. what i did find was that I'm only getting minimal volts (1.2V) across to the switches, anyone know any of the required voltages past the ECU?

It's worth trying some oil or WD40 on the switches. They can get covwered in verdigree (crap) and stop working. Someone mentioned earlier how the rear windows fail even though the front ones get used more. This is possibly why. in my experience with electronics and switches dirt causes heaps of problems.

This is most obvious on old radios that crackle when you change the volume. A quick spray of the volume control clearing up the crud fixing them up most of the time. Technically the dirt causes a higher resistance on the switch or potentiometer causing the crackle or failure to operate.

Regards


Martin