5008 Alternator

[Steve Walsh]

Hi all you clever folk,

Working on a mates 5008. VF3**************[VIN obfuscated, can be read by forum staff].
Alternator not charging, my mate bought a replacement from a breakers, Looked identical apart from it had a solid pulley, so I swapped overun pulley from original alternator.
It now charges but on Diagbox I get 2 codes
U1400
U1401
Alternator LIN NET,

I have checked all the wiring and all seems ok.
Would this be a Alternator fault or wiring fault, I am wondering if it is not compatable.

Any thoughts welcome

Steve

[GiveMeABreak]

Definitely looks like an alternator issue or the wiring - they have to be right ones for the vehicle. The LIN is the Local Interconnect Network that connects up low priority ECUs on a serial network. So it's not communicating with the engine ECU.

Fault Code:	U1400
Description of Fault:	Alternator LIN network: Registering of a fault on the LIN network. Faults in communication between ECUs on the LIN.
Conditions for Fault to clear:	Driving for 5 minutes
Downgrade Modes whilst Fault is active:
Symptoms:	Jerking/stalling, Starting problem, Lack of power
Suspect Areas:	Engine ECU LIN network Alternator

Fault U1401: Ditto as above, but for: Alternator LIN network : Registering of a fault on the slave node of the alternator LIN network.

[Steve Walsh]

Thanx very much Marc, I will do some further investigation later

Steve