What have you done to your Freelander today

Rank Amatuer · Monday at 15:47

650 mile round trip.
Left home 04:30 Sunday morning to pick up my wife stranded on a train somewhere between Telford and Wolverhampton thanks to storm Darragh. Great trip down. Road quiet and clear until I left the M6 and then had to negotiate all the branches and flooding on minor roads. Quick coffee, a cooked breakfast, load the car with wife & suitcases and headed back. M6 & M74 mobbed with all the people who heeded the warnings and didn’t travel Saturday. Got home 18:00 hours.
Tailwind going south helped return 37.5 mpg. Headwind heading north pulled it down to 33.5 mpg. Car now has over 233,000 miles on the clock.

Atomician · 2024-12-10T09:04:40+0000

@Bounty Is it a front heated windscreen or rear out of interest?

Bounty · 2024-12-10T14:13:16+0000

Atomician said:
@Bounty Is it a front heated windscreen or rear out of interest?

The vehicle has both, but the rear one works and works well. All clear across the elements in about 2 minutes.

It's the front one that's not kicking in. If I switch it and the rear on at the same time, the rear clears while the front doesn't. The front will turn off long before the rear does, and the screen only clears in a 'fan' shape once I set the blower to work

Nodge68 · 2024-12-10T15:45:20+0000

Bounty said:
The vehicle has both, but the rear one works and works well. All clear across the elements in about 2 minutes.

It's the front one that's not kicking in. If I switch it and the rear on at the same time, the rear clears while the front doesn't. The front will turn off long before the rear does, and the screen only clears in a 'fan' shape once I set the blower to work

Check the relay and fuses. The front screen pulls loads of power, so relay and fuses can fail. The front screen times out after 10 minutes IIRC.

Bounty · 2024-12-10T17:52:33+0000

Nodge68 said:
Check the relay and fuses. The front screen pulls loads of power, so relay and fuses can fail. The front screen times out after 10 minutes IIRC.

I thought maybe one of those until I measured voltage at those thin strip contacts that actually connect to the glass. If I'm getting a reading there, then it can't be either of those? Or is there something else going on

andyfreelandy · 2024-12-10T18:40:01+0000

Have you got resistance reading on screen terminals. Both sides should be similar. Not sure of the resistance but could find out.

Alibro · 2024-12-10T19:26:05+0000

Bounty said:
I thought maybe one of those until I measured voltage at those thin strip contacts that actually connect to the glass. If I'm getting a reading there, then it can't be either of those? Or is there something else going on

Have you checked you're getting a ground at the windscreen? I believe the screen heater is controlled by the ECU or VCU so probably has the ground switched and permanent 12V

andyfreelandy · 2024-12-10T20:46:17+0000

Not quite.

andyfreelandy · 2024-12-10T20:46:54+0000

I think the CCU does the timing or maybe just powers off when car off and cancels power until button pressed again. I think mine stays on until I switch off or car stopped.

Not sure why the switch illumination has a 30 Amp fuse !! Fire hazard me thinks. Will check that is all it does and down rate mine.

Alibro · 2024-12-10T22:51:57+0000

andyfreelandy said:
I think the CCU does the timing or maybe just powers off when car off and cancels power until button pressed again. I think mine stays on until I switch off or car stopped.

Not sure why the switch illumination has a 30 Amp fuse !! Fire hazard me thinks. Will check that is all it does and down rate mine.

Fair point, the diagram clearly shows Pos being switched. I should have known better as I had a go at making mine work a year or so ago but gave up as I struggled to make head nor tail of the diagram and I didn't really need it. My car is in the garage 99% of the time so no snow or ice on it and the fan works well enough to demist.

andyfreelandy · 2024-12-11T08:54:53+0000

CCU switches -ve of relay so you are right about the electronics switching negative.

30A fuse for indicator lamp ?!?!?!

Nodge68 · 2024-12-11T13:12:26+0000

Bounty said:
I thought maybe one of those until I measured voltage at those thin strip contacts that actually connect to the glass. If I'm getting a reading there, then it can't be either of those? Or is there something else going on

If you're getting voltage at the window terminals, it suggests the window has failed. The bond between the cables and elements in the glass can fail. A resistance check should show a very low resistance, something like ½ and Ohm.

What have you done to your Freelander today

Rank Amatuer

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Atomician

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Bounty

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Nodge68

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Bounty

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andyfreelandy

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