Defender 300tdi battery warning light

mystery · May 12, 2023

have you checked

Matty p · May 12, 2023

Thanks Mystery, I will be having another look at it this evening and spending all day tomorrow on it,just hope i can find the issue

mystery · May 12, 2023

the resistor is there to stop a blow lamp causing the alternator to stop charging it mimics the bulb which intern cause the alternator excitation and the diode to stop feed back on the alternator as in the diagram there is an image of a water damaged header from a window screen leek and also check if the diode has been fitted the correct way round

Matty p · May 12, 2023

Brilliant Mystery, thank you for that. I will let you know how it goes!!

Matty p · Jun 5, 2023

Matty p said:
Cheers Kermit, I was thinking along the same lines regarding the diode. When b and d are bridged the light goes out and charges normally. I think for the cost of it I might as well just change the diode just piece of mind.

Good morning all,I just wanted to post an update of my vehicle charging woes. It has turned out to be a faulty alternator, being a new unit I assumed it to be good and it was my wiring causing the issue. I should have trusted my own work and looked a bit harder at the alternator. New alternator fitted and now perfect.Anyway,moral of the story,never assume antything!

kermit_rr · Jun 5, 2023

Thanks for updating

Defender 300tdi battery warning light

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