B

Berk

Member

• Jan 28, 2020

• #1

Right. Have a heated windscreen on my D2, doesn't work and I don't know why.

Getting battery voltage and continuity at fuses 7 and 8, switch lights up, turns off after a while.

Have swapped relay for a known good.

Don't have voltage at the windscreen connectors, so I'm assuming theres something buggered between fuses and connectors.

Any pointers?

 

sierrafery

Well-Known Member

• Jan 28, 2020

• #2

The HFS connectors are hardwired to the fusebox connector so if you have voltage out of the fuses means the relay works too so the problem is most probably within the fusebox or at the connector unless the loom is interrupted somewhere so lift up the fusebox and check for voltage in C0578 pins 1 - 3 (RAVE - Elecrical library - connector views)

 

J

janderson41

Active Member

• Jan 28, 2020

• #3

could also mean your windscreen has packed up. Seems to be quite common.
I have power to each connector at each end of windscreen but screen does not work.
Plenty of similar posts. Just a Disco thing.

 

Interceptorxj

Well-Known Member

• Jan 28, 2020

• #4

janderson41 said:

could also mean your windscreen has packed up. Seems to be quite common.
I have power to each connector at each end of windscreen but screen does not work.
Plenty of similar posts. Just a Disco thing.

Click to expand...

He doesn't have power at the windscreen connectors.

 

B

Berk

Member

• Jan 28, 2020

• #5

Bit of jiggery pokery has got proper voltage at both front windscreen connectors. Buggered if I can tell you what I did. Mostly wire wiggling and replacing apparently good fuses.

At this point, I assume either the windscreen will work in the morning, or I need to drive a bit too close to gravel lorries for a few weeks.

 

sierrafery

Well-Known Member

• Jan 28, 2020

• #6

Can still be bad contact on the feed path and the voltage to drop under load

 

B

Berk

Member

• Jan 28, 2020

• #7

Yup. One thing at a time! Superficially poking at the niggly bits while nothing major is going wrong.

 

discodrivercumbria

Well-Known Member

• Jan 28, 2020

• #8

mine works! all 1 wire in it, they are a joke! i had a new one fitted on my last car, 80% worked! wouldn't recommend getting it done in July like i did, but had too cos it had a big crack in it,