New Fault on Dash

JohnnyCrash · Jul 12, 2012

So recently and intermittently I have been getting on the dash "Gearbox Fault" Now to me this is odd one as I've no nasty rattles or problems with gears? Once (first time it came on) I was pulling onto M6 and it slipped from top gear down then back up? and drove home fine?? And Ive not had any problems since but now and then this message pops up?

So what are the first pointers? what to check?

2000 P38 2.5 Auto

Datatek · Jul 12, 2012

Low battery voltage is a common cause, the other one is the transfer box ECU.

wammers · Jul 12, 2012

Stick it on diagnostics see what if any fault codes come up.

SpacePig · Jul 12, 2012

I had the same "Error Message" when powering down the car EACH time I took my car from the dealer for repair, and each time they disconnected the Battery for a while. So like Datatek I believe, at least in my case, that the battery is the culprit.

Otherwise this message never happen on dash or when they look for errors

JohnnyCrash · Jul 12, 2012

Datatek said:
Low battery voltage is a common cause, the other one is the transfer box ECU.

Thanks - I'll pop my Ctek on the battery tonight and see if this cheers it up if not I'll have a scan through Rave and find out where the transfer box ECU lives

Datatek · Jul 12, 2012

JohnnyCrash said:
Thanks - I'll pop my Ctek on the battery tonight and see if this cheers it up if not I'll have a scan through Rave and find out where the transfer box ECU lives

Your Ctek will prove nothing. Put a meter on the battery after it has stood overnight, should be around 12.5 volts, then with the engine running it should rise to 14.2 volts.
Transfer box ECU is under the passenger seat.

JohnnyCrash · Jul 12, 2012

Ah sorry - you mean Low running voltage - not the battery is drained. I'll do this on my lunch then as my multimeter is in the boot

Datatek · Jul 12, 2012

JohnnyCrash said:
Ah sorry - you mean Low running voltage - not the battery is drained. I'll do this on my lunch then as my multimeter is in the boot

No I mean both, a duff cell in the battery or the alternator not charging correctly.

JohnnyCrash · Jul 12, 2012

Datatek said:
No I mean both, a duff cell in the battery or the alternator not charging correctly.

Yeah, got that, didn't get chance while on lunch, will have to be tonight when I get round to looking at it.

scotchgit · Jul 12, 2012

When I had that message my xyz switch went wrong , thats the electrical gear selector on side of box .

JohnnyCrash · Jul 12, 2012

scotchgit said:
When I had that message my xyz switch went wrong , thats the electrical gear selector on side of box .

was it constantly on?? This is very random on mine, as I've been about a week without it happening and then it did it this morning reminding me that I've not done anything about it.

Druim · Jul 12, 2012

JohnnyCrash said:
So recently and intermittently I have been getting on the dash "Gearbox Fault" Now to me this is odd one as I've no nasty rattles or problems with gears? Once (first time it came on) I was pulling onto M6 and it slipped from top gear down then back up? and drove home fine?? And Ive not had any problems since but now and then this message pops up?

So what are the first pointers? what to check?

2000 P38 2.5 Auto

Does Low range gears work?

i had same message when transfer ecu was fubar

scotchgit · Jul 12, 2012

JohnnyCrash said:
was it constantly on?? This is very random on mine, as I've been about a week without it happening and then it did it this morning reminding me that I've not done anything about it.

It was intermittent for a few days then went into get you home mode which is third gear I think , diagnostics will help

JohnnyCrash · Jul 13, 2012

Druim said:
Does Low range gears work?

i had same message when transfer ecu was fubar

Yes all fine with Low Range

been busy so not had chance to look yet, but will later ;-)

New Fault on Dash

JohnnyCrash

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Datatek

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wammers

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SpacePig

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JohnnyCrash

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Datatek

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JohnnyCrash

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Datatek

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JohnnyCrash

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scotchgit

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Druim

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scotchgit

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