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J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 2:20 pm
by rindskopf
Manual gear selection on J box selector and sport button work for about 20 minutes driving then light on sport button goes off and manual gears can no longer be selected when moving over from auto. Any ideas on problem please?
Re: J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 2:39 pm
by andrew.graham97934
I have a similar problem, intermittently .
From what I have read it can be caused by implausible signals being sent from the linear switch in the gear selector.
I have yet to investigate myself. Apparently the switch can be opened up with care, and the tracks cleaned up.
But I stress I haven't done this yet myself, so anybody who has and can offer advice, I too would be interested.
Re: J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 5:05 pm
by davidr
You might like to look at this topic where I took out the linear switch on my 2001 XKR and cleaned it up. Ignore the first 2 pages of posts as I worked through some other problems
viewtopic.php?f=63&t=14725&start=30&sid ... db2a7f3545
Re: J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 6:36 pm
by andypryce
Are you getting any fault lights on dash, eg gearbox fault? The other area that causes problems is the rotary switch on the gearbox itself.
Re: J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 6:59 pm
by Astromorg
Not happy with what I was thinking
Edited out for a re-think
Re: J box and sport mode button XKR 2003.
Posted: Tue May 30, 2023 9:42 pm
by andypryce
On reflection I think if it’s the rotary switch the gearbox goes into failsafe mode and locks in gear 3. So the linear switch more likely culprit.