6-speed gearbox - Fault finding .

[Rextheute]

G'day , a question for the Brains Trust .
Have 2010 V6 RRS , 6 speed box -gets a random fault , usually after running cruise control towing , however it has now spat it out running downhill to go uphill - has a shudder/jolt and flashes 'Gearbox Fault ' orange triangle . (Road speed approx 100km/h )

Turn it off and on - fault disappears and drive is restored .

plug in my nanocom and the fault is " P0829 5-6 shift "

The magical internet informs me that this is possibly a harness issue or low voltage .
Has this occurred to any one else ?

Have just had box serviced - oil n filter change . All Genuine , but it did have nongenuine filter pan ( metal ) and filter enclosed .

[Tombie]

How old / Flat is your battery?

("It starts the car ok" isnt an accurate enough reading )

[justinc]

Get it diagnosed properly either at manuel automatics in Thomastown or A&B in Dandenong. There is a possibility it is a mechatronics issue however the dreaded 5/6 shift fault is usually more serious. How many km on the trans?

[Graeme]

P2704 is the critical and indicative DTC for worn stator bushes causing clutch E to fail to lock within the allowable time so hopefully doesn't require a rebuild. Occurring shortly after an oil change is worrying though.

[Rextheute]

Thanks Chaps !
Tombie , yes have considered the battery issue - was heading to jaycar this arvo to obtain a led readout for the 12v socket - dodgy I know but will work in the short term .
Justin , have emailed A&B ( Sid was v helpful ) have suggested a road test and hook up to their diagnostic whatsit whilst driving . Had nor con considered Manuel autos - they are a lot closer than Dandenong .
Graeme , keeps throwing the same code p0829 , so that's sort of good .......I always had the thought of the 'box being the weak link in the power train , it goes like a rocket .

192,000 kms , first gearbox service was at 130k approx ,2013 .

They are a splendid car , so it not making me antsy ! Just want to sort it correctly so it powers on .

[justinc]

130k is a bit long for the first service I'm afraid in some cases...😐😐

Jc

[ytt105]

I can attest to that. 120k oil change, 190k gearbox change.

[DiscoJeffster]

200,000km oil change. 233,000km still going strong touch wood. I think my gearbox had a very easy life cruising at hundreds of km a day at highway speed and little towing based on the previous only other owner. Commuting from Perth to Northam each day.

[Tombie]

First fluid change was done at 60k, next one due 120k for me.

I tow a big Cat and a Crossover and run some healthy tune as well, so I service it more often.

[DiscoJeffster]

First fluid change was done at 60k, next one due 120k for me.

I tow a big Cat and a Crossover and run some healthy tune as well, so I service it more often.

If I obtained mine sooner I would have as well. Ah well, now I drop the oil annually, so it gets a half flush each year, in the vain attempt to maintain what life it has left.