http://www.auto-professionals.co.uk/ Thu, 07 May 2026 01:02:46 +0000 MyBB http://www.auto-professionals.co.uk/showthread.php?tid=24398 Wed, 19 Nov 2025 11:34:52 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=24398
Just wondering if anybody has a alternator/charging circuit wiring diagram for a 2016 Vauxhall Vivaro 1.6 non stop start.

VIN: W0L3F7002GV660728

The vehicle has had a new alternator fitted, but the dash is still displaying charging fault. When the fault occurs, it’s charging to just over 14V, when it goes off it drops to around 13.5V. Which from what I believe is what it’s supposed to do (smart alternator).

Just trying to see where the LIN cables go to, so if anybody has access to wiring diagrams I’d love to have a look if possible please.

Thanks.]]>
Just wondering if anybody has a alternator/charging circuit wiring diagram for a 2016 Vauxhall Vivaro 1.6 non stop start.

VIN: W0L3F7002GV660728

The vehicle has had a new alternator fitted, but the dash is still displaying charging fault. When the fault occurs, it’s charging to just over 14V, when it goes off it drops to around 13.5V. Which from what I believe is what it’s supposed to do (smart alternator).

Just trying to see where the LIN cables go to, so if anybody has access to wiring diagrams I’d love to have a look if possible please.

Thanks.]]> http://www.auto-professionals.co.uk/showthread.php?tid=24259 Thu, 25 Jul 2024 18:03:37 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=24259 W0VF7G606KV631059

Antipollution fault showing initially with ambient air temp sensor fault (located in mirror) cleared code and no faults but error still on dash. Customer drove for a few miles and then Nox sensor 2 showed fault so I replaced this with genuine part. Cleared everything and no fault after driving for a few miles, still ok but error still on dash and counting down from 450 miles till no start. Suggested I reprogramme ECU, did this and now shows on dash 0 mile antipollution error. Started a few times and then after approx 5 or 6 times no start now! How do I reset the countdown timer to allow van to start? Can't see anything in online SPS.
Software for reluctant is current so no update available, but was for the engine so that's why I updated that!
Already tried Nox catalyst reset after renewing Nox sensor and all other possible relearn procedures using GDS 2, bit stuck now, any guidance appreciated.
All control units are fault free!]]> W0VF7G606KV631059

Antipollution fault showing initially with ambient air temp sensor fault (located in mirror) cleared code and no faults but error still on dash. Customer drove for a few miles and then Nox sensor 2 showed fault so I replaced this with genuine part. Cleared everything and no fault after driving for a few miles, still ok but error still on dash and counting down from 450 miles till no start. Suggested I reprogramme ECU, did this and now shows on dash 0 mile antipollution error. Started a few times and then after approx 5 or 6 times no start now! How do I reset the countdown timer to allow van to start? Can't see anything in online SPS.
Software for reluctant is current so no update available, but was for the engine so that's why I updated that!
Already tried Nox catalyst reset after renewing Nox sensor and all other possible relearn procedures using GDS 2, bit stuck now, any guidance appreciated.
All control units are fault free!]]> http://www.auto-professionals.co.uk/showthread.php?tid=24190 Tue, 13 Feb 2024 22:25:55 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=24190
I have a 2011 Opel Insignia diesel with Haldex.
I get a warning that rear axle need service. One year ago i had a similar message, but without DTC. Rear wheel was not driven.
I change oil and replace the filter, than it works very good in one year.
This time i did have DTC, lost communication to some module.
U0121:74 Lost communication with electronic brake control module-Bus signal checksum error., this DTC is located under "Rear differential clutch control module".
If i erase the DTC, the rear wheels are spinning nice in the snow, but as soon as a stop, and re-read, DTC its back. If i erase it, the rear axle is working again.
Did someone have similar problem? Some suggestions?

Best regards.
Nilsson]]>
I have a 2011 Opel Insignia diesel with Haldex.
I get a warning that rear axle need service. One year ago i had a similar message, but without DTC. Rear wheel was not driven.
I change oil and replace the filter, than it works very good in one year.
This time i did have DTC, lost communication to some module.
U0121:74 Lost communication with electronic brake control module-Bus signal checksum error., this DTC is located under "Rear differential clutch control module".
If i erase the DTC, the rear wheels are spinning nice in the snow, but as soon as a stop, and re-read, DTC its back. If i erase it, the rear axle is working again.
Did someone have similar problem? Some suggestions?

Best regards.
Nilsson]]> http://www.auto-professionals.co.uk/showthread.php?tid=24133 Fri, 15 Sep 2023 07:51:44 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=24133
We are working on this Zafira-B. A previous guy really butchered this car before us. Customer brought it to us to repair the horn/hooter. We found the fuse missing, horn switch wiring disconnected, terminals on china hooter not properly crimped. After repairing all these faults the horn works, just before delivering to the client we took it for a test drive and noticed the horn does not work with the engine running. If I switch off the vehicle it works!
So basically: The horn/hooter does not function once the engine is running. Any Ideas?

BR]]>
We are working on this Zafira-B. A previous guy really butchered this car before us. Customer brought it to us to repair the horn/hooter. We found the fuse missing, horn switch wiring disconnected, terminals on china hooter not properly crimped. After repairing all these faults the horn works, just before delivering to the client we took it for a test drive and noticed the horn does not work with the engine running. If I switch off the vehicle it works!
So basically: The horn/hooter does not function once the engine is running. Any Ideas?

BR]]> http://www.auto-professionals.co.uk/showthread.php?tid=23939 Sun, 27 Nov 2022 21:31:41 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23939
I hope every one is ok!
I have Insignia-B 2018 and it had second hand steering rack fitted. The problem is VIN can not be changed.
So far customer has been at the Vauxhall dealer and they failed to program it and told him need new steering rack fitted and program by them.
It has only one fault: VIN not programed and all working fine.
I tried SPS online failed, Original Abrites AVDI failed, clone AVDI/FVDI failed, OP-COM failed, Launch and Autel all failed to do it.
I think only way is to read it and manually change The VIN. I wonder did any body had this problem and how they did it to read it to change the VIN?
Any suggestions welcome!

Thank you!
Regards
Kmpg

]]>
I hope every one is ok!
I have Insignia-B 2018 and it had second hand steering rack fitted. The problem is VIN can not be changed.
So far customer has been at the Vauxhall dealer and they failed to program it and told him need new steering rack fitted and program by them.
It has only one fault: VIN not programed and all working fine.
I tried SPS online failed, Original Abrites AVDI failed, clone AVDI/FVDI failed, OP-COM failed, Launch and Autel all failed to do it.
I think only way is to read it and manually change The VIN. I wonder did any body had this problem and how they did it to read it to change the VIN?
Any suggestions welcome!

Thank you!
Regards
Kmpg

]]> http://www.auto-professionals.co.uk/showthread.php?tid=23936 Thu, 24 Nov 2022 19:39:19 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23936 I have a Opel Insignia 2011, diesel.
I have DTC B3410. Is it most likely that it is the front level sensor, or is it some other common problem on this model?
Thanks.]]> I have a Opel Insignia 2011, diesel.
I have DTC B3410. Is it most likely that it is the front level sensor, or is it some other common problem on this model?
Thanks.]]> http://www.auto-professionals.co.uk/showthread.php?tid=23916 Wed, 26 Oct 2022 19:32:36 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23916
Anyone have an internal relay location diagram for a Corsa-D BCM? I am trying to locate drivers door central locking relay.

Regards
Dave Williams]]>
Anyone have an internal relay location diagram for a Corsa-D BCM? I am trying to locate drivers door central locking relay.

Regards
Dave Williams]]> http://www.auto-professionals.co.uk/showthread.php?tid=23911 Wed, 19 Oct 2022 17:17:46 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23911 Back again for some help, i have a Astra-J 2012, the key fob is not working and i get
the DTC B3101. Someone can guide how to fix this?
I found a TSB but that is for North America not for Europe.

Intermittent Operation of Key Fobs, "No Remote Detected" Message with Possible
BCM DTC B3101.

b3101.pdf
File Type:
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]]> Back again for some help, i have a Astra-J 2012, the key fob is not working and i get
the DTC B3101. Someone can guide how to fix this?
I found a TSB but that is for North America not for Europe.

Intermittent Operation of Key Fobs, "No Remote Detected" Message with Possible
BCM DTC B3101.

b3101.pdf
File Type:
Downloaded:	9 times
Size:	506.28 KB

]]> http://www.auto-professionals.co.uk/showthread.php?tid=23887 Wed, 14 Sep 2022 17:18:19 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23887 Can someone help me with this?

Vauxhall Zafira Z16XE1 engine with P0400-63 fault EGR circuit range/performance (Open Valve).
With engine running the EGR valve is not being commanded
With Ignition on not running, I can activate EGR & it says it is being commanded to 100% & feedback reads 3.8.

What tells the ECU to command the EGR?

It has had a new EGR fitted & I have also plugged in another EGR to the harness to compare activation etc.

Many thanks in advance.
Regards
Dave Williams]]> Can someone help me with this?

Vauxhall Zafira Z16XE1 engine with P0400-63 fault EGR circuit range/performance (Open Valve).
With engine running the EGR valve is not being commanded
With Ignition on not running, I can activate EGR & it says it is being commanded to 100% & feedback reads 3.8.

What tells the ECU to command the EGR?

It has had a new EGR fitted & I have also plugged in another EGR to the harness to compare activation etc.

Many thanks in advance.
Regards
Dave Williams]]> http://www.auto-professionals.co.uk/showthread.php?tid=23819 Thu, 30 Jun 2022 16:54:19 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23819
Can anyone tell me if the powered tailgate control module is coded on these please?

Regards
Dave Williams]]>
Can anyone tell me if the powered tailgate control module is coded on these please?

Regards
Dave Williams]]> http://www.auto-professionals.co.uk/showthread.php?tid=23695 Sun, 20 Feb 2022 12:59:43 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23695 I have an Opel Insignia 2011 with A20DTH engine. I have notice that the coolant level will get lower. I removed the plastic cover over the engine and saw some liquid on the intake manifold. I put down a cotton swab, and i think I can see some red/purple on the cotton swab. Is it a common problem on these engines?
Is it a hard job to replace the seals? I think the coolant enter or leave the engine thru the manifold?
Thanks.]]> I have an Opel Insignia 2011 with A20DTH engine. I have notice that the coolant level will get lower. I removed the plastic cover over the engine and saw some liquid on the intake manifold. I put down a cotton swab, and i think I can see some red/purple on the cotton swab. Is it a common problem on these engines?
Is it a hard job to replace the seals? I think the coolant enter or leave the engine thru the manifold?
Thanks.]]> http://www.auto-professionals.co.uk/showthread.php?tid=23676 Thu, 03 Feb 2022 19:37:00 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23676
2013 Meriva-B petrol, think its 1.4 Turbo.

Got this Meriva-B brought to garage form local locksmith.
Car would not crank or start, on dashboard light with car with padlock flashing,
locksmith had coded keys back in.
I put diagnostic to check codes expecting to see immobilizer faults but nothing.
Data in computer was saying key recognized and immobilizer inactive.
I checked for poor earths around battery, after having battery disconnected, i reconnected battery and vehicle started!
Has anybody come across this as i have been told by a couple of friends in the trade that it is common but no solution?

Many thanks.
Tony]]>
2013 Meriva-B petrol, think its 1.4 Turbo.

Got this Meriva-B brought to garage form local locksmith.
Car would not crank or start, on dashboard light with car with padlock flashing,
locksmith had coded keys back in.
I put diagnostic to check codes expecting to see immobilizer faults but nothing.
Data in computer was saying key recognized and immobilizer inactive.
I checked for poor earths around battery, after having battery disconnected, i reconnected battery and vehicle started!
Has anybody come across this as i have been told by a couple of friends in the trade that it is common but no solution?

Many thanks.
Tony]]> http://www.auto-professionals.co.uk/showthread.php?tid=23615 Thu, 25 Nov 2021 20:42:06 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23615
Have an Opel Vectra 2.2 MY2007 with a very strange behavior.
If A/C is on and engine is switched off then the starter gets a pulse and a rattling noise is heard.
This does not happen if the A/C is off or the starter fuse is taken out before engine is switched off.
What the owner told me is that it started when the A/C compressor was replaced.
Any idea's what can cause this problem?

Any one has Wiring Diagrams for this model (engine code Z22YH)?
Car will be with me next Sunday for further troubleshooting... Wiring diagrams are very welcome.]]>
Have an Opel Vectra 2.2 MY2007 with a very strange behavior.
If A/C is on and engine is switched off then the starter gets a pulse and a rattling noise is heard.
This does not happen if the A/C is off or the starter fuse is taken out before engine is switched off.
What the owner told me is that it started when the A/C compressor was replaced.
Any idea's what can cause this problem?

Any one has Wiring Diagrams for this model (engine code Z22YH)?
Car will be with me next Sunday for further troubleshooting... Wiring diagrams are very welcome.]]> http://www.auto-professionals.co.uk/showthread.php?tid=23423 Tue, 18 May 2021 22:50:32 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23423 Hi Professionals,

My one of closed friend was asking my help about Geniune OEM Towbar fit into Astra-J 2012. Honestly, I have never done these kind of jobs so I could not help him with value information. I just have an imagine about the process but guys need your help to confirm my idea and if I am wrong, help me out.

So as I think...

To fit Genuine OEM Towbar needs:

- Towbar physically installed in the car
- Towbar/Trailer Control Unit installed in the car
- REC needs to be replaced with other one that has Fuses for Towbar
- As I checked the Wiring, need an extra wire that goes from REC to Towbar Control Unit

About the diagnostic side...

- Towbar/Trailer Control Unit needs to be programmed and configured to the car

And the questions are coming now because something is not clear for me.
Do I have recode the BCM also? About the BCM recode... The car's VIN originally is WITHOUT Towbar so what about now?
Thanks to TIS2WEB, any Control Unit Programming and Coding happening based on the VIN.
Should I grab other VIN from same car just with Towbar installed? Or How exactly?

Thank you very much in advance! ]]> Hi Professionals,

My one of closed friend was asking my help about Geniune OEM Towbar fit into Astra-J 2012. Honestly, I have never done these kind of jobs so I could not help him with value information. I just have an imagine about the process but guys need your help to confirm my idea and if I am wrong, help me out.

So as I think...

To fit Genuine OEM Towbar needs:

- Towbar physically installed in the car
- Towbar/Trailer Control Unit installed in the car
- REC needs to be replaced with other one that has Fuses for Towbar
- As I checked the Wiring, need an extra wire that goes from REC to Towbar Control Unit

About the diagnostic side...

- Towbar/Trailer Control Unit needs to be programmed and configured to the car

And the questions are coming now because something is not clear for me.
Do I have recode the BCM also? About the BCM recode... The car's VIN originally is WITHOUT Towbar so what about now?
Thanks to TIS2WEB, any Control Unit Programming and Coding happening based on the VIN.
Should I grab other VIN from same car just with Towbar installed? Or How exactly?

Thank you very much in advance! ]]> http://www.auto-professionals.co.uk/showthread.php?tid=23395 Wed, 05 May 2021 15:41:17 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23395
I have a 2006 Astra-H Z20LEH petrol and when i was driving the car then the cluster just when off on its own.
Pulled over switched of the car and now the car won't start. I have checked all the fuses they are all good front and back, check main fuse 80 Amp that all ok.

When you put the ignition on you can hear the pump but there is no display on the cluster and when you unplug the cluster the radio and other units come on but not the headlights.

Any suggestions.
Thanks in advance.

asstra.jpeg
File Type:
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]]>
I have a 2006 Astra-H Z20LEH petrol and when i was driving the car then the cluster just when off on its own.
Pulled over switched of the car and now the car won't start. I have checked all the fuses they are all good front and back, check main fuse 80 Amp that all ok.

When you put the ignition on you can hear the pump but there is no display on the cluster and when you unplug the cluster the radio and other units come on but not the headlights.

Any suggestions.
Thanks in advance.

asstra.jpeg
File Type:
Downloaded:	16 times
Size:	191.53 KB

]]> http://www.auto-professionals.co.uk/showthread.php?tid=23375 Thu, 25 Feb 2021 10:00:28 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23375
Please I need your help i want to advice me please.
I have change ABS block of my Zafira 2003 and I put a new one from Bosch but i need to know how can i configure it?
I tried to use Bosch KTS540 i get a fault that the new one need to configure it.
I tried also with OP-COM but i don't know how to make it working, i went to ABS system i could read faults but the icon of programming is not working.
Can any one help me please?

Thanks a lot in advance.]]>
Please I need your help i want to advice me please.
I have change ABS block of my Zafira 2003 and I put a new one from Bosch but i need to know how can i configure it?
I tried to use Bosch KTS540 i get a fault that the new one need to configure it.
I tried also with OP-COM but i don't know how to make it working, i went to ABS system i could read faults but the icon of programming is not working.
Can any one help me please?

Thanks a lot in advance.]]> http://www.auto-professionals.co.uk/showthread.php?tid=23168 Wed, 23 Sep 2020 11:45:09 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23168
Asking on behalf of a friend here.
Vauxhall Astra-H 2007, UK RHD, 1.8, Automatic
Registration plate: EJ57SSO


Neutral P0773 no release of clutch c1 at neutral control on
P0730 Gear ratio incorrect
History P0715 automatic transmission speed input circuit no signal history.

He as asked me if there a Vauxhall checking procedure on GTIS to clarify if box is no good or computer side related.

Best regards.
James]]>
Asking on behalf of a friend here.
Vauxhall Astra-H 2007, UK RHD, 1.8, Automatic
Registration plate: EJ57SSO


Neutral P0773 no release of clutch c1 at neutral control on
P0730 Gear ratio incorrect
History P0715 automatic transmission speed input circuit no signal history.

He as asked me if there a Vauxhall checking procedure on GTIS to clarify if box is no good or computer side related.

Best regards.
James]]> http://www.auto-professionals.co.uk/showthread.php?tid=23161 Sat, 19 Sep 2020 20:34:32 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23161 VIN: W0L0AHL67A5038615

Has anyone got wiring diagram for the roof please?
Roof will not open, wont do nothing there is no chime in the car either.
When pressing any buttons next to interior light windows wont go down either. When pressed next to interior light, but they work on drivers door.
I have the wiring hardness to pieces along side the boot hinge mechanism on left hand side of boot, no wiring damage.
I unplugged the green and blue connector and i still got the fault when i do a re-scan. I'm suspecting ECU at fault.
I see there people on flea bay what know how to test these and fix these, if know would anyone have the info.
Got the fault code:
B1405 CONTROL MODULE VOLTAGE REFERENCE OUTPUT 2 CIRCUIT SHORT TO BATTERY SYMPTOM (1) - CURRENT.

Please see bellow pictures:





Best regards.
James]]> VIN: W0L0AHL67A5038615

Has anyone got wiring diagram for the roof please?
Roof will not open, wont do nothing there is no chime in the car either.
When pressing any buttons next to interior light windows wont go down either. When pressed next to interior light, but they work on drivers door.
I have the wiring hardness to pieces along side the boot hinge mechanism on left hand side of boot, no wiring damage.
I unplugged the green and blue connector and i still got the fault when i do a re-scan. I'm suspecting ECU at fault.
I see there people on flea bay what know how to test these and fix these, if know would anyone have the info.
Got the fault code:
B1405 CONTROL MODULE VOLTAGE REFERENCE OUTPUT 2 CIRCUIT SHORT TO BATTERY SYMPTOM (1) - CURRENT.

Please see bellow pictures:





Best regards.
James]]> http://www.auto-professionals.co.uk/showthread.php?tid=23128 Thu, 27 Aug 2020 18:18:26 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23128
My Astra Z18XER will not start. The engine turns over but will not fire up.
I have the following code: P0685-06

So far I have checked the fuses, cleaned the UEC with contact cleaner and swapped the ECU relay. None of this had made any difference.

Any help is much appreciated.
Thanks in advance.]]>
My Astra Z18XER will not start. The engine turns over but will not fire up.
I have the following code: P0685-06

So far I have checked the fuses, cleaned the UEC with contact cleaner and swapped the ECU relay. None of this had made any difference.

Any help is much appreciated.
Thanks in advance.]]> http://www.auto-professionals.co.uk/showthread.php?tid=23018 Tue, 07 Jul 2020 17:15:49 +0000 http://www.auto-professionals.co.uk/showthread.php?tid=23018
Hi.
Posting on behalf of a friend of mine, he looking for the wiring diagram for the AdBlue system please.
His fault code: P20E8

This is the post he made other day regarding fault code:
Morning guys, got a 2016 Zafira Tourer, with the ELM on and it’s coming up with P20E8 reluctant pressure you low.
Car drives absolutely faultless.
Is this something along the lines with the AdBlue?]]>
Hi.
Posting on behalf of a friend of mine, he looking for the wiring diagram for the AdBlue system please.
His fault code: P20E8

This is the post he made other day regarding fault code:
Morning guys, got a 2016 Zafira Tourer, with the ELM on and it’s coming up with P20E8 reluctant pressure you low.
Car drives absolutely faultless.
Is this something along the lines with the AdBlue?]]>