Everything JLR SDD related (feel free to add experiences/help).
- Thread starter Nodge68
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The charging system malfunction will either be a defective alternator or the LIN connection to it, if you're getting a LIN fault DTC in the ECM then investigate that first.
The timeout message usually means a module has shutdown and not responded to a 'wake' command, the ignition has timed out or the voltage has dropped during the process. Sometimes you need to close & open a door during the programming of the BCM if the process is a long one.
The timeout message usually means a module has shutdown and not responded to a 'wake' command, the ignition has timed out or the voltage has dropped during the process. Sometimes you need to close & open a door during the programming of the BCM if the process is a long one.
make a copy to RR section, thank you
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Generator give 13.4 on iddle running
and when I open DTC code it was info about :check the LIN line(it is about charging problem)
but I can't understand what should I check(wires, connectors or else)
about time out it is the next picture
this DTC code and voltage 12.3 on unit -it is too low?
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The generator will default to 'dumb' charging (self-excitation) if it loses the LIN connection, hence the 13.4V, 12.3V is too low and probably only occurs until the engine has reached >1500rpm, which is the speed where alternator self-excitation will occur.
There will be a small plug on the back of the alternator with a single wire, this should have 9-11VDC What DTC are you getting? it will indicate the type of fault you need to look for.
12.3VDC whilst programming is too low - it needs to be a minimum of 12.5VDC, if you don't have a bettery support unit, can you have another vehicle connected by jump leads and with the engine running to keep the voltage up?
There will be a small plug on the back of the alternator with a single wire, this should have 9-11VDC What DTC are you getting? it will indicate the type of fault you need to look for.
12.3VDC whilst programming is too low - it needs to be a minimum of 12.5VDC, if you don't have a bettery support unit, can you have another vehicle connected by jump leads and with the engine running to keep the voltage up?
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