Hi guys, recently bought a 2009 Octavia Mk2 in very good condition, has only done 150k kms and is very clean generally but it has a few small bits that need sorting. Main issue is the passenger door electrics front and back aren't working, also the rear wiper. I had similar problems with my mk2 Superb and was door wiring loom both times. I have checked all the wiring looms in the door boot and there doesn't appear to be any obvious broken wires. Did a scan with a cheap app as cant find my old wire for VCDS and I go the following fault codes.

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01332 [0x0534]

Front passenger door control unit-J387; Door control unit, passenger side-J387

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

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01333 [0x0535]

Rear Left Door Control Module-J388; Door control unit, rear left-J388

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

42. Driver door electronic equipment42. Driver door electronic equipment

DTCs: 2

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01332 [0x0534]

Front passenger door control unit-J387; Door control unit, passenger side-J387

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

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01333 [0x0535]

Rear Left Door Control Module-J388; Door control unit, rear left-J388

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

============================

01332 [0x0534]

Front passenger door control unit-J387; Door control unit, passenger side-J387

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

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01333 [0x0535]

Rear Left Door Control Module-J388; Door control unit, rear left-J388

Status: Test conditions are met, Validated and stored in non volatile memory, Validated fault present at time of request

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Any help much appreciated. Is it still likey to be the wiring harness or should I just change the front passenger door control module?

I suspect you need to clear the standing fault codes first and then investigate the ones that arise or return.

Thanks a million Mike. I tried but there is a chance that the cheap app isn't able to clear the dtcs. I ordered a new cable for VCDS, might have to wait for that. Thanks for your suggestion.

Edited 13 January13 Jan by harvey94

Not sure on Octavia but have you checked drivers side door pillar wiring as well. On my sons fabia the drivers side supplies/controls passenger side window etc. As for the rear wiper I have had two Octavia mk2 and a Seat altea and have had to replace wiper motor three times so far. They seem to be prone to getting water ingress and seizing.

Alasdair

Thanks a lot Alasdair, I have checked the door pillar wiring loom where comes through the rubber boot into the door. I might need to have a look inside the door. I actually changed the wiper motor and it looked like it had been changed quite recently but neither are working which led me to thinking that it might be linked to the wiring/control module problem. Interestingly the washer jet is working but I think that is on a different control module.

As far as I am aware the main area for wire breaks is where they flex as it come through door pillar. Inside the door it may be a bad connector/water ingress but so far I havent come accross any broken wire issues inside a door unless its been got to already and not clipped back in place. If its like the fabia it may be related to window control/door system. Maybe Breezy Pete can help. He repaired my sons window controler previously. No probems since. Hopefuly a vcds scan may pin point something.

Alasdair

Meant to add are the windows working on passenger side front and rear

Alasdair

Passenger windows, passenger central locking front and back and wing mirror controls all not working along with the rear wiper. I might peel the cloth wrap of some of the wiring harness in the door connector and inspect more. Thanks a lot.

On my sons fabia theres a connector at door pillar. Not sure on Octava but if its there you could try and disconnect connector at door pillar and check wire continuity back to window controller. Not sure if it might be the window controller thats failed. As said sons fabia one did and no windows etc on passenger side until Breezy Pete fixed it

Alasdair

Edited 14 January14 Jan by Alasdair1

Thanks a lot for the help Alasdair. I've made some progress. I checked all door wiring rooms again I found one wire in the driver's door that will need attention soon but still functional so decided to move on to next possible problem. I replaced the front passenger window motor and door control module. All of the electrics in the front drivers door are now alive and well thankfully. Rear door still completely dead. Is the rear passenger door the same , had a window motor/control module all in one? If so I think I'll replace this next. Nearly there fingers crossed and only cost €30 so can't complain.

15 minutes ago, harvey94 said:

I found one wire in the driver's door that will need attention soon

Can you remember what colour(s) this wire is?

There's a lilac/yellow wire that comes from front passenger side module to rear one on same side, which is the data line telling rear what to do.

Fuses that power the rear motor modules do both sides, so if other side is working OK, so must they be. Could be worth checking wires going into rear door though, in case any breakages are apparent there.

4 hours ago, Breezy_Pete said:

Can you remember what colour(s) this wire is?

There's a lilac/yellow wire that comes from front passenger side module to rear one on same side, which is the data line telling rear what to do.

Fuses that power the rear motor modules do both sides, so if other side is working OK, so must they be. Could be worth checking wires going into rear door though, in case any breakages are apparent there.

Thanks Pete I already had a good look at the rear passenger side loom and seems to be intact. Does anyone know if the rear doors have a their own door control module?

Yes they do.

Thanks Pete I think that's my next job. Couldn't get the door panel off today as I didn't have a long enough torx screwdriver for the grab handle. My final job is the rear windscreen wiper isn't working, I've already replaced the motor but it's still not moving so starting to think maybe it's the boot locking mechanism not registering the boot as closed. I wonder which part has the sensor in it the part attached to the boot or the car ?

So update, I had to change the regulator in the front passenger door as it and the window motor were bad. That has solved all the issues in that door. I moved onto rear passenger side door. When I took the door card off I noticed 2 things one wire had some electrical tape wrapped around it so potentially a previous repair and the main connector was just hanging not plugged in! I plugged it in and was delighted window working immediately, unfortunately central locking still not working in that door. Does anyone know what colour the wire is so I can check if it's the wire with the previous repair. Also it may be nothing but I think I can hear a kind of chirping or faint siren type noise from the rear passenger side of the car. It has a towbar and socket. I have plugged out to towbar relay/wiring box as it's making noises when indicating and braking as if I'm towing.