Heated windscreen

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Johnr967
Posts: 1
Joined: Fri Dec 09, 2022 7:30 am

Post by Johnr967 »

I have a 2017 Discovery 5. The heated windscreen has stopped working. The light on the switch on the dash come on but that’s all. I have looked for the fuse but can’t se it listed anywhere in the fuse boxes. Does it have a fuse and if so where is it located?

Kav1187
Posts: 3
Joined: Mon Jan 06, 2025 10:31 am

Post by Kav1187 »

The Haynes Autofix guide states that the following fuses are in the engine compartment fuse box for the heated windscreen:

Fuse 64 - heated windscreen right hand side

Fuse 65 - heated windscreen left hand side

Relay 15 - heated windscreen right hand side

Relay 12 - heated windscreen left hand side
Kav1187
Posts: 3
Joined: Mon Jan 06, 2025 10:31 am

Post by Kav1187 »

Having looked at my 2017 fuse box, I can confirm that the fuses do not go up to 64 and 65.

This is a picture of the engine compartment fuse box. It appears that the fuses for the windscreen are FL3 and FL8

It doesn't state which relays are for the heated screen.

20250109_154730.jpg

Kav1187
Posts: 3
Joined: Mon Jan 06, 2025 10:31 am

Post by Kav1187 »

In my case, the two fuses were both fine. I can hear a relay click when I turn the windscreen off. There is also a noticeable load on the alternator when it is turned on.

The wiring for the heated windscreen is in the A pillars. The positive is at the bottom and the negative is at the top.

A continuity test between the two ends seems OK. When I turn the power on, I can see voltage on the +ve on both sides. My conclusion is that the heated elements have burnt out and I need a new windscreen.

20250109_170916.jpg

20250109_162751.jpg

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