Alternator Wiring Harness troubles

[JThorp]

Hi, I have a 2008 Landrover Discovery 3 and have had to replace the Alternator. In the process of doing this I have pulled the wires out of the alternator wiring clip. Does anyone have a photo showing the wires in the harness or know which wires go where ? The wires I have are Red, White Green & White Brown. Hope someone might know Thanks

[Grappler]

Hopefully this link has the info you need. The diagram covers both petrol and diesel motors



https://www.disco3.co.uk/gallery/albums/userpics/15405/414_Alternator_and_Regulator_Charging_petrol_V8_V6 _and_TDV6_wiring_diagram.pdf

This link describes the generator system including connector C0053 and the pinouts
Land Rover Workshop Manuals > LR3/Disco 3 > 414-02B Generator And Regulator 4.4L > Description Adn Operation (https://workshop-manuals.com/landrover/lr3/414-02b_generator_and_regulator_4.4l/description_adn_operation/)

[JThorp]

148880https://www.aulro.com/afvb/blob:https://www.aulro.com/e696dd45-fb25-4104-b934-42a2f8c2b550This is the way I’ve put them back in. Does this look right ? I still have the battery light on the dash and when I scan the code it comes up with P0622 Generator Field terminal circuit thanks for the help

[Grappler]

Looking at the circuit diagram for a diesel connector C0053 Pin1 is Red, Pin2 White /Purple, Pin3 White /Green

Cant really see the colours in the pic but it looks like white green is in pin2. You dont mention a White/ purple

Try swapping the White/ green to 3. Make sure the red which is battery voltage is in the correct position to avoid bricking the ECU

Maybe someone with a LR3 can visually confirm
I have a RRS which is wired differently so cant help

[JThorp]

So I think I’ve fixed the alternator wiring issue as I don’t have the battery light coming up on the dash anymore, but now I have a park brake fault coming up and the car goes into limited gears mode. Also have a surge in the interior lights when car is running. When I scan the code that comes up is P0563 System voltage high. What might be the cause of this ?

[JThorp]

So fault seems to occur when I rev the engine. On the scanner the Battery Voltage jumps up to 15.9 v and the errors start. When I just idle the engine the voltage drops back to around 13.5 to 14.5 and error goes away. Any ideas ?

[josh.huber]

whats the battery voltage with the car turned off, it shouldnt go past 15.0 volts i know ive seen my d4 hit 15.0v with a nearly dead battery after a hard start.
if you got the wiring incorrect you could be giving the field the wrong voltage and therefor forcing the alternator to charge so high.
go to a wrecker or call one and ask them to take a photo of the plug, or better still go and cut it off a harness and come home and solder onto your harness, then you will have an undamaged plug on your car

[josh.huber]

I just looked at the photo you took and the diagram you were supplied, i would change the two white wires with each other, generally, we read 1 2 3 looking at the male plug,