Fault codes relating to my AL4

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asav
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Fault codes relating to my AL4

Post by asav »

Hi all, ok finally found time to retreive the codes...any help re these would be greatly appreciated. My gearbox when sitting in N/P for a while goes into limp mode.....

AL4:

intermitten fault - pressure regulator - code 06


" " - " modulation - code 76
electrovalve output short circuit to +


" " - convertor lockup - code 71
electrovalve short curcuit to +


" " - multifunctionswitch- code 63
signal (MFS) intermediate postion


whats it all mean and what needs to be done?
Sid_the_Squid
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Post by Sid_the_Squid »

Doesn't sound good huh :(

I can't say I know what any of those mean, nor does the AL4 training manual I indicate what that means or what could be done.

If I were to guess I would say Dodgy wiring, two codes say the electrovalve has a short circuit or an open circuit, and I would guess the final one means the box cant tell what gear the selector is in, again probably bad wiring, this would fit in with the fact it only happens in P or N.

It could all be related to one bad connection, before going to an auto box specialist (which is where you may end up) I would be incline to check all wiring concerned with the gearbox, look for corrosion or brittle wires, clean up connections, and I always like to grease lightly with water resistant corrosion preventative grease (read the grease tins in your local motor parts shop). Don't know exactly where the electric connection would be on a synergie, there will be the gear selector one on top of the box, near the drain hole, its black plastic, you will have seen this already, on the Xantia the ECU is under the battery tray, don't know what else there could be to look at.

Thats about all I can think of, sorry I can't be of more assistance.
I hope Jim might have a workshop manual, or have more suggestions?
Gone to the dark side.

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Post by citronut »

Sid wrote
"I hope Jim might have a workshop manual,"

he cant use that as its under his pillow, so its to hand to bash himself over the head to get off to sheep whoops im mean sleep,


asav
was it hitched up to a LEXI (proper dealers diagnostic machine),

regards malcolm
asav
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Post by asav »

citronut wrote:Sid wrote
asav
was it hitched up to a LEXI (proper dealers diagnostic machine),

regards malcolm
Nope its me cheapo chinese job...

lets hope its the wiring sid
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Post by Sid_the_Squid »

As you mentioned in a previous post, about what nice clean oil came out of the gearbox, and the fact the faults are intermittent, make me think wiring as opposed to a mechanical issue.
Jim is awfully quiet so far, perhaps the workshop manual trick Malcolm mentioned worked a little to good ;)

From what I have read here the Chinese Lexia copies seem to offer functionality on par with a 'real' Lexia.
Gone to the dark side.

Past Citroens
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'99 Xantia 3.0 V6 Exclusive (Green Goblin)
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Post by CitroJim »

Sid_the_Squid wrote:
Jim is awfully quiet so far, perhaps the workshop manual trick Malcolm mentioned worked a little to good ;)
:lol: No, it's a combination of going to Houghton Regis last night to collect your seats Malcolm and having done something to my right shoulder yesterday afternoon that makes typing (and anything else) absolute agony. Maybe that AL4 manual under my pillow has done my shoulder in but seriously, I've no idea what happened to it, just that I only just made it home last evening before collapsing in a painful heap :evil:

Asav, I'm inclinded to go with the electrical wiring suspicions. I'll analyse the faults and come back to you. Those, on face value, are typical of intermittent wiring issues though.
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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Post by Sid_the_Squid »

having done something to my right shoulder yesterday afternoon that makes typing (and anything else) absolute agony
:shock: Ouch, sorry to hear that Jim, you are having a rough time of late, try a warm Radox bath and some ibuprofen, should help to relax the shoulder.
Gone to the dark side.

Past Citroens
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'99 Xantia 3.0 V6 Exclusive (Green Goblin)
'02 C5 Hdi 110 LX Estate
'98 Xantia 1.8 sx auto with LPG
'00 Xantia Hdi (110) forte
'97 Xantia 1.9D sx
'93 Xantia 1.9D lx (my first) R.I.P
asav
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Post by asav »

CitroJim wrote:
Asav, I'm inclinded to go with the electrical wiring suspicions. I'll analyse the faults and come back to you. Those, on face value, are typical of intermittent wiring issues though.
cool.....hope the shoulder gets better quick time
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Post by citronut »

Jim wrote
"No, it's a combination of going to Houghton Regis last night to collect your seats Malcolm and having done something to my right shoulder yesterday afternoon"

i do hope it twas not liftting my seat that ijured you hunny,
i think its more likely liftting that manual over your head every night/eve,

at least you have now got someone to rub it better for you (ooooh cheaky)

much ass grassy ass for collecting my seat Sir Jim

creap creap graval graval

kind regards
malcolm
asav
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Post by asav »

creeping on gravel?..definately not burglar material.

Ok back to me problems....any1 give me any directions re locating the wiring parts to check the connections?
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Post by xantia_v6 »

First thing is clear the recorded faults, drive a few miles, and see if they come back. It is likely most of them won't (the software for detecting and logging faults is probably more buggy than the software that runs the transmission).
asav
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Post by asav »

xantia_v6 wrote:First thing is clear the recorded faults, drive a few miles, and see if they come back. It is likely most of them won't (the software for detecting and logging faults is probably more buggy than the software that runs the transmission).

Yeap....just gave that a whirl...getting the same faults :cry: ...got me hopes up though :roll:
asav
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Post by asav »

Just a nudge re anyone knowing where/hoe i get to the electrical connections for the gearbox
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Post by CitroJim »

I'm onto it now asav. Sorry for the delay... Shoulder now better :)
Jim

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Post by CitroJim »

All the problems point to a dodgy electrical connection between the ECU and the gearbox.

I'd remove the battery and then break, check and clean where necessary, the connector to the gearbox ECU and the connector onto the transmission as a first step. If this does not help, the finger of suspecion must point to the multifunction switch, given the last error code. It is certainly electrical.

I have some generic circuits of ther AL4 and heaps of other useful information besides. I cannot post it as it's all in a big PDF file. If you want to email me, I'll send you the document in a reply email.

Having this document will allow further fault finding.
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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