Ls 430 facelift 2003

[Johnny01966]

Hi got trouble with 6 speed auto box on ls430 bumps into 5th gear then dosent change into 6 th even on 40 miles run , did paper clip test faults on vsc came up 43 51 62 63 took in for service said that a solenoid fault shows but lexus didn't have any solenoids available till march will solenoid cure or is it rebuild replacement any help appreciated. 

[cruisermark]

Check your coolant colour is nice and red - and there is no oil contamination - the LS radiator is also a combined atf cooler aswell and sometimes the Inlet and outlet unions for the atf rust allowing water and atf oil to mix therefore causing gearbox problems.

[Haylands]

Also, can you change it into sixth manually...??

[Johnny01966]

If you put into 6th manually shows 6 in dash but no change on revs to indicate that it's changes into 6th gear

[Johnny01966]

Had it on fault reader came up with a solenoid a fault so I was told