So today I jumped in the car to go to work the car started fine and drove about 3 miles before it came up with the T/M malfunction on the dash. I am now only able to get gears 1,3,5 and reverse. Is there any common faults that would cause this? Has anyone else had this issue. The car is driven daily and I've not had any issues with gears prior to this happening this morning. Any advice would be greatly appreciated. Car is a 2009 and I currently don't have a way of reading the codes. The car has NOT been mapped however I have fitted an HKS Y pipe a few months ago in prep to get it stage 1 mapped.
T/M malfunction HELP!!
MR2Brett
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Thank you for your reply
I cleared the codes, went for a drive still only the odd numbered gears with Tcm malfunction displayed on the dash guess I'll be having a learning week or two on the ins and outs of the GT-R. No codes were displayed on the ecutek when I re-ran the dtc check. Car isn't mapped and has not been launched according to the ecutek.
Thanks Brett
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Yeah I could take it to a garage however, as a mechanic of nearly 30 years i'd rather check all the easy stuff first before paying the extortionate GTR Tax thus is why i was asking if anyone else had any experiences of losing the even gears as it could be a quick fix. My next check will be to drop the gearbox solenoid pack out and give them a clean, checking to see if any have rotated etc also check all connectors are made. Some fresh oil and a clean of any magnetic debris might be all it needs. Nothing looks complicated with all the decent you tube videos from jacks transmissions of the stripping down of the solenoid pack etc. My plea was to gain any simple fixes that may be out there as i've never worked on a GT-R before apart from swapping out my inter-coolers that went two weeks after ownership.
Thanks for your input very helpful.
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As before, I suggest calling AC Speedtech and speaking to Alan or Andy directly as they will have seen as many GTR gearboxes as anyone in the UK and may be able to advise (hints & tips etc.) or otherwise assist.
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Thanks for the info, I will phone Andy.
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Those are all engine fault codes, not transmission, I'd clear those out and keep an eye on them though, maybe just a low voltage at some point, but would certainly monitor.
Have you got any transmission fault codes stored? If you've no codes, but possibly a 'clutch overheat warning' if you persevere trying to get it to move in 1st gear, then will most likely be a snapped clutch basket.
AC
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2,563 Posts
Almost. Only even gears.
It was a broken shift fork.
So box had to come out, and a load of new bits (including a new set of clutch plates) went in.
Off it went on a lowloader to ACSpeedtech because there's no way I'd even contemplate driving around with a half a gear box.
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Those are the only codes that came up no transmission codes at all. After clearing the codes I drove it again and it only gave gears 1,3,5 and reverse I then plugged the ecutek in and no codes were there however the T/M malfunction was still showing on the dash with the yellow axlediagram light flashing. There was no untoward noises from the car whatsoever and it drove a further 12miles in gears 1,3,5 to get me home again with no noises. The ecutek says no launches the car has 64k full service history from middlehurst,litchfield and JD imports. In Nov 17 it had the following on a service sheet from JD imports
Remove VB and Clean all filters etc
New pentosin FFL4 fluid and clutch learn
ECUTEK gearbox license
New TCM software - latest one
I can't find any info saying if the solenoid clips were fitted if a piston has rotated could this cause the loss of the even gears?
Thanks for your time
Brett
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501 Posts
If there's a flashing transmission light then there will be a code stored, are you reading the TCU? or just the ECU?
At that mileage there's a few wear and tear related issues we commonly see. Double check you're reading the TCU and let us know!
AC
At that mileage there's a few wear and tear related issues we commonly see. Double check you're reading the TCU and let us know!
AC
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141 Posts
Right I was being thick.....awaiting incoming!
Having got my ecutek Bluetooth I downloaded the software app onto my phone, plugged the Bluetooth device into the car and went into read the DTC codes not realising it was on a demo mode for GT-R! So the four fault codes were not from my car but from a demo! How stupid do I feel.....I've used lots of these Bluetooth devices before on various cars and always been plug and play without a demo mode!
Anyway back to my car, the codes coming up are:
TCM
P2832 shift fork "A" position circuit
ESUS
C1D04
Cleared the faults, dash light still flashing, tried a clutch learn which failed. Haven't tried driving the car at all due to the light still flashing.
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501 Posts
No problem, we've had sillier moments!
...the code is for a shift fork... but could be one of about 8 things causing said shift fork not to be where it's supposed to be. Could be a simple fix! ...or not... give us a call tomorrow (before 10am would have best chance) and we'll try and talk you through a few scenarios.
Andy
...the code is for a shift fork... but could be one of about 8 things causing said shift fork not to be where it's supposed to be. Could be a simple fix! ...or not... give us a call tomorrow (before 10am would have best chance) and we'll try and talk you through a few scenarios.
Andy
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141 Posts
Brilliant, thanks Andy fingers crossed it's something simple!
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Update.
So I completely forgot to give an update on my issue, apologies.
About a month ago I finally fixed my problem on only being able to select odd gears, it turned out to be a selector solenoid piston that had spun on the selector fork therefore not aligning up with its respective magnet.
I managed to source some solenoid clips and fit them to prevent future issues, refilled the gearbox with some fresh oil which has now given me all my gears back. All the gear teeth were in good order, selectors free and no broken synchro teeth.
I'd like to say a big thanks to Andy at AC Speedtech for giving me his time and his valuable advice, much appreciated.
So I completely forgot to give an update on my issue, apologies.
About a month ago I finally fixed my problem on only being able to select odd gears, it turned out to be a selector solenoid piston that had spun on the selector fork therefore not aligning up with its respective magnet.
I managed to source some solenoid clips and fit them to prevent future issues, refilled the gearbox with some fresh oil which has now given me all my gears back. All the gear teeth were in good order, selectors free and no broken synchro teeth.
I'd like to say a big thanks to Andy at AC Speedtech for giving me his time and his valuable advice, much appreciated.
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Where did you get the clips? How much?
I think I better do this
I think I better do this
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141 Posts
I got them from autotorque.net @ £57 delivered for the 3. They were genuine Nissan items.Where did you get the clips? How much?
I think I better do this
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2,730 Posts
On their way!:thumbsup:
Finally, a specialist that does what they say they***8217;re going to do.
Finally, a specialist that does what they say they***8217;re going to do.
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141 Posts
Happy to help.On their way!:thumbsup:
Finally, a specialist that does what they say they’re going to do.
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