Hi

Would anyone be able to help with alternator spec please? Specifically what output should it be for this model to keep everything running?

Am I correct in thinking it is 150V?

Thanks in advance

 

No Not 150V. Or do you mean 15.0V?
You should measure the battery voltage with the car off after sitting all night.
Then start the car and immediately measure the voltage again. Then after 15-20 minutes of running measure the voltage again.
Report back with all 3 readings.

A secondary question is how old is your battery and did you replace the alternator with a Jaguar one or get your original unit rebuilt?
Lots of problems if you used an aftermarket alternator and now I favor getting your original rebuilt if possible.
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Sorry, I should have typed 150amps not volts

 

It's probably the special type of alternator which the PCM can switch between voltages - don't fit the wrong kind!

 

I'm only getting 13.6v and red light on dashboard. New alternator & battery recently fitted.

Think I might have open circuit default on BMS??

 

You need to answer the questions above?
Is the replacement alternator a Jaguar alternator?
What are the other voltages I asked you to measure?

Leave the BMS stuff alone unless you have a code. Right now you know where your problem is. It's in the new alternator.
Now this is a guess and that's why I asked where the alternator came from.

Please let us know?
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