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Skoda Octavia BLK 2005 - Non start, codes P1912, P1479, P2295, P1403 and P3034 - Fixed #

Posted by Paul Goswell on October 7, 2011, 3:29 pm

Year of Manufacture *: 05
Engine Size and Code *: blf
( Optional ) Scanner Used: bosch kts

Hi

This vehicle was towed in as a non start, i was then told by the customer that 2 other garages had looked at it inc the local skoda dealer who had it for a month and could not get it going GREAT. it would spin over but not fire up and the brake lights were on all the time with the ign was on even with the switch disconnected

Code read and came up with P1912 P1479 P2295 P1403 P3034 no can bus codes just engine codes p3034 was because i had air filter off, P1912 was a broken wire which I repaired and cleared that code, the customer had said that the main dealer had tried another ecu but it still would not go which was complete rubbish as it had never been removed, I removed it and cleaned contacts and there was no water ingress, still no go I then pulled relay kl30 and lights went out swapped it with the horn relay and vehicle started and all ok what have I done too cure it any ideas ?

Sorry for long post

Paul

Re: skoda octavia

Posted by james mccallum <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat5583' width='330' height='300' border=0 style='border:none;'> on October 7, 2011, 9:14 pm, in reply to "skoda octavia"
James McCallum

Hi Paul, I remember there were issues with the main relays on VW, the number on the affected relay was either 30 or 109. HTH helps.
Jim

Re: skoda octavia

Posted by Jon Morgan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3190' width='330' height='300' border=0 style='border:none;'> on October 8, 2011, 8:26 pm, in reply to "skoda octavia"
Jonathan Morgan

Is it just me or would people prefer it if fault descriptions were given with the codes - I'm just not clever enough to memorise all 2000 odd of them.
Whinge over, looking at the codes all are engine management related.
I suspect that you lost a power supply to the engine control unit & the above components,which disabled a portion of the engine PCM but left it communicating with the Gateway (J533).
The Golf 5 based vehicles put their brake lights on & refuse to start when they have issues with the J533 Gateway module, when comm's is lost with the engine or, just have brake lights on when the power supply to the brake light switch is interrupted.
I would think you have a fault in the terminal 15 relay causing a loss of power to the above components.

I have no wiring diagram here to confirm this so....

Just a stab in the dark.......

Jon.

Re: skoda octavia

Posted by Aidan Birley on October 9, 2011, 3:58 pm, in reply to "Re: skoda octavia"
Message modified by board administrator October 12, 2011, 1:07 pm

Hi

>>>> Is it just me or would people prefer it if fault descriptions were given with the codes - I'm just not clever enough to memories all 2000 odd of them. <<<<

Come on Jon, just learn 6 each day for a year it's simple, then next year move on to the U-codes

Seriously, I agree totally and I personaly rarely bother spending time with these threads. not to bad with p0 codes but much to much hassle to look up manufacture codes.

I think it is one reason for poor response to some threads, possibly it should be a condition of posting.

Cheers Aidan

Re: skoda octavia

Posted by Mark Carter <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on October 9, 2011, 6:33 pm, in reply to "Re: skoda octavia"
Mark Carter

>>> possibly it should be a condition of posting.<<<

Sounds like a plan.

Mark

Modern cars, Its all wizardry and witchcraft

Re: skoda octavia

Posted by paul goswell <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5240' width='330' height='300' border=0 style='border:none;'> on October 10, 2011, 8:28 am, in reply to "Re: skoda octavia"
Paul Goswell

sorry chaps
p1912 brake booster pressure sensor open circuit/positive short
p1479 brake vacuum system mechanical fault
p2295 fuel pressure regulation valve short to ground
p1403 egr system control difference
p3034 intake air temp sensor 2 signal too high

p3034 was because i had air filter off and p1912 was a broken wire which i repaired and cleared after the vevicle non of these codes came back

Re: Skoda Octavia BLK 2005 - Non start, codes P1912, P1479, P2295, P1403 and P3034 #

Posted by paul goswell <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5240' width='330' height='300' border=0 style='border:none;'> on October 11, 2011, 4:33 pm, in reply to "Skoda Octavia BLK 2005 - Non start, codes P1912, P1479, P2295, P1403 and P3034 #"
Paul Goswell

i have narrowed down the fault to the fuse/relay box under bonnet next to battery if i tap the box when fault occurs the brake lights go out and vehicle starts i looks like relay 4 pin 86 is losing a ignition feed ive removed fuse box but cant see any broken wires/traces etc does any one know what pin/colour wire feeds pin 86 on relay 4 thanks paul

Fixed #

Posted by Paul Goswell on October 19, 2011, 7:13 pm, in reply to "Skoda Octavia BLK 2005 - Non start, codes P1912, P1479, P2295, P1403 and P3034 #"
Message modified by board administrator October 21, 2011, 1:55 pm

Hi

I found fault to be loss of ignition feed to pin 86 of relay 458 in fuse box next to battery, i rewired relay so customer could try vehicle out all seems ok it does require a new fuse box but customer is going back to main dealer to try and get a bit of good will as they had charged them over £400 and could not get it going, thanks for your help

Paul

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