AC wiring remove and unknown thing?

1
Hi,
Just been removing all the old AC wiring in the course of wiring up the new dash and found this behind the passenger side head light (see pic). Who ever fitted the AC used it as a power supply and it looks as if it may have over heated.  I just wanted to know what it was so I could follow it through on the wiring diagram.  I also had the misfortune to crush my passenger side door to day with a car hoist and stairway, lowered the window three inches before I noticed. O well need a new door anyway.  If any one can help with the identification it was be appreciated.

Cheers,

Michael R

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2
It could be the feed to the radiator fan.



> Michael Roberts <type500@yahoo.com> wrote:
>
> Hi,
> Just been removing all the old AC wiring in the course of wiring up the
> new dash and found this behind the passenger side head light (see pic).
> Who ever fitted the AC used it as a power supply and it looks as if it
> may have over heated. I just wanted to know what it was so I could
> follow it through on the wiring diagram. I also had the misfortune to
> crush my passenger side door to day with a car hoist and stairway,
> lowered the window three inches before I noticed. O well need a new door
> anyway. If any one can help with the identification it was be
> appreciated.
>
> Cheers,
>
> Michael R
>
>
> __________________________________________________________________
> Looking for the perfect gift? Give the gift of Flickr!
>
> http://www.flickr.com/gift/
3
Hi Phill,
That is my guess too. But I could not find in on the wiring diagram. It appears to be in the same loom as the rad fan power, so it must be related some how.

Cheers,
Michael R

From: "plander@optusnet.com.au" <plander@optusnet.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Mon, December 28, 2009 9:23:21 PM
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

It could be the feed to the radiator fan.

> Michael Roberts <type500@yahoo. com> wrote:
>
> Hi,
> Just been removing all the old AC wiring in the course of wiring up the
> new dash and found this behind the passenger side head light (see pic).
> Who ever fitted the AC used it as a power supply and it looks as if it
> may have over heated. I just wanted to know what it was so I could
> follow it through on the wiring diagram. I also had the misfortune to
> crush my passenger side door to day with a car hoist and stairway,
> lowered the window three inches before I noticed. O well need a new door
> anyway. If any one can help with the identification it was be
> appreciated.
>
> Cheers,
>
> Michael R
>
>
> ____________ _________ _________ _________ _________ _________ _
> Looking for the perfect gift? Give the gift of Flickr!
>
> http://www.flickr. com/gift/


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4
Looks the rad. fan resistors to me. Normally light green on colour and
resides behind the left side headlights.


BenT
Sent from my mobile device

On Dec 28, 2009, at 2:23 AM, plander@optusnet.com.au wrote:

> It could be the feed to the radiator fan.
>
>
>
>> Michael Roberts <type500@yahoo.com> wrote:
>>
>> Hi,
>> Just been removing all the old AC wiring in the course of wiring up
>> the
>> new dash and found this behind the passenger side head light (see
>> pic).
>> Who ever fitted the AC used it as a power supply and it looks as if
>> it
>> may have over heated. I just wanted to know what it was so I could
>> follow it through on the wiring diagram. I also had the misfortune
>> to
>> crush my passenger side door to day with a car hoist and stairway,
>> lowered the window three inches before I noticed. O well need a new
>> door
>> anyway. If any one can help with the identification it was be
>> appreciated.
>>
>> Cheers,
>>
>> Michael R
>>
>>
>>
>> __________________________________________________________________
>> Looking for the perfect gift? Give the gift of Flickr!
>>
>> http://www.flickr.com/gift/
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
5

I have those resistors too, are they giving the fan half power when it is switched to Low ?? hartmut

 

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Michael Roberts
Sent: Monday, 28 December 2009 9:56 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

 

Hi Phill,

That is my guess too. But I could not find in on the wiring diagram. It appears to be in the same loom as the rad fan power, so it must be related some how.

 

Cheers,

Michael R

 

From: "plander@optusnet.com.au" <plander@optusnet.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Mon, December 28, 2009 9:23:21 PM
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

It could be the feed to the radiator fan.

> Michael Roberts <type500@yahoo.
com> wrote:
>
> Hi,
> Just been removing all the old AC wiring in the course of wiring up the
> new dash and found this behind the passenger side head light (see pic).
> Who ever fitted the AC used it as a power supply and it looks as if it
> may have over heated. I just wanted to know what it was so I could
> follow it through on the wiring diagram. I also had the misfortune to
> crush my passenger side door to day with a car hoist and stairway,
> lowered the window three inches before I noticed. O well need a new door
> anyway. If any one can help with the identification it was be
> appreciated.
>
> Cheers,
>
> Michael R
>
>
> ____________ _________ _________ _________ _________ _________ _
> Looking for the perfect gift? Give the gift of Flickr!
>
> http://www.flickr.
com/gift/

 

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6
Yes they are heater fan resistors, most non gen a/c has a separate fan on t3. Mine has three speeds therefore needs two resistors for lower speeds. Greg
--- On Mon, 28/12/09, Hartmut Kiehn <hartis@live.com.au> wrote:

From: Hartmut Kiehn <hartis@live.com.au>
Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?
To: Syncro_T3_Australia@yahoogroups.com
Received: Monday, 28 December, 2009, 3:41 PM

I have those resistors too, are they giving the fan half power when it is switched to Low ?? hartmut

From: Syncro_T3_Australia @yahoogroups. com [mailto:Syncro_ T3_Australia@ yahoogroups. com] On Behalf Of Michael Roberts
Sent: Monday, 28 December 2009 9:56 PM
To: Syncro_T3_Australia @yahoogroups. com
Subject: Re: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

Hi Phill,

That is my guess too. But I could not find in on the wiring diagram. It appears to be in the same loom as the rad fan power, so it must be related some how.

Cheers,

Michael R

From: "plander@optusnet. com.au" <plander@optusnet. com.au>
To: Syncro_T3_Australia @yahoogroups. com
Sent: Mon, December 28, 2009 9:23:21 PM
Subject: Re: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

It could be the feed to the radiator fan.

> Michael Roberts <type500@yahoo. com> wrote:
>
> Hi,
> Just been removing all the old AC wiring in the course of wiring up the
> new dash and found this behind the passenger side head light (see pic).
> Who ever fitted the AC used it as a power supply and it looks as if it
> may have over heated. I just wanted to know what it was so I could
> follow it through on the wiring diagram. I also had the misfortune to
> crush my passenger side door to day with a car hoist and stairway,
> lowered the window three inches before I noticed. O well need a new door
> anyway. If any one can help with the identification it was be
> appreciated.
>
> Cheers,
>
> Michael R
>
>
> ____________ _________ _________ _________ _________ _________ _
> Looking for the perfect gift? Give the gift of Flickr!
>
> http://www.flickr. com/gift/

Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!


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7

Greg,

I know about the two speed radiator fan but not three speed.  Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.  

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight.  It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les

 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ] On Behalf Of greg esposito
Sent: 29 December 2009 13:54
To: Syncro_T3_Australia@yahoogroups.com
Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

 

Yes they are heater fan resistors, most non gen a/c has a separate fan on t3. Mine has three speeds therefore needs two resistors for lower speeds. Greg

 

 

  

 

!

8

Can someone with a knowledge of the electrical system please tell me the function of J101, Radiator cooling fan relay2nd stage, on Bentleys 97.82.  Does that trigger the radiator cooling fan thermoswitch or is it the other way around?  I am trying to understand how the two speed fan system works.

Les

 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ] On Behalf Of Les Harris
Sent: 29 December 2009 14:16
To: Syncro_T3_Australia@yahoogroups.com
Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

 

Greg,

I know about the two speed radiator fan but not three speed.  Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.  

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight.  It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les

 

From: Syncro_T3_Australia @yahoogroups. com [mailto: Syncro_T3_Australia @yahoogroups. com ] On Behalf Of greg esposito
Sent: 29 December 2009 13:54
To: Syncro_T3_Australia @yahoogroups. com
Subject: RE: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

 

 

Yes they are heater fan resistors, most non gen a/c has a separate fan on t3. Mine has three speeds therefore needs two resistors for lower speeds. Greg


 

 

  

 

!

9
On Dec 28, 2009, at 7:16 PM, "Les Harris" <leslieharris@optusnet.com.au> wrote:

Greg,

I know about the two speed radiator fan but not three speed.  Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.  

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight.  It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les


Les,

It sounds to me like Greg is talking about his heater fan rather than the radiator fan.

Every post-86 model US-spec Vanagon I've ever owned has that fan resistor. 



BenT

10
not heater or radiator fan but non genuine a/c fan.Is this not part of what Micheal is removing. Greg
--- On Mon, 28/12/09, BenT Syncro <syncro@gmail.com> wrote:

From: BenT Syncro <syncro@gmail.com>
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Received: Monday, 28 December, 2009, 7:53 PM

On Dec 28, 2009, at 7:16 PM, "Les Harris" <leslieharris@ optusnet. com.au> wrote:

Greg,

I know about the two speed radiator fan but not three speed. Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight. It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les


Les,

It sounds to me like Greg is talking about his heater fan rather than the radiator fan.

Every post-86 model US-spec Vanagon I've ever owned has that fan resistor.



BenT


See what's on at the movies in your area. Find out now.
11

Becomes more interesting as I never had any a/c installed and still have those resistors installed. What now? I will have a close look tomorrow. hartmut

 

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of greg esposito
Sent: Tuesday, 29 December 2009 7:27 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

 

not heater or radiator fan but non genuine a/c fan.Is this not part of what Micheal is removing. Greg
--- On Mon, 28/12/09, BenT Syncro <syncro@gmail.com> wrote:


From: BenT Syncro <syncro@gmail.com>
Subject: Re: [Syncro_T3_Australia] AC wiring remove and unknown thing?
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Received: Monday, 28 December, 2009, 7:53 PM

 

On Dec 28, 2009, at 7:16 PM, "Les Harris" <leslieharris@ optusnet. com.au> wrote:

 

Greg,

I know about the two speed radiator fan but not three speed.  Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.  

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight.  It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les

 

Les,

 

It sounds to me like Greg is talking about his heater fan rather than the radiator fan.

 

Every post-86 model US-spec Vanagon I've ever owned has that fan resistor. 

 

 

 

BenT

 

See what's on at the movies in your area. Find out now.

12
Likewise, my non-AC vans had them as well.

BenT
Sent from my mobile device

On Dec 29, 2009, at 1:35 AM, "Hartmut Kiehn" <hartis@live.com.au> wrote:

Becomes more interesting as I never had any a/c installed and still have those resistors installed. What now? I will have a close look tomorrow.  hartmut

13
Sorry guys my mistake I thought michael was saying he removed that resistor as part of his old a/c. It must be the heater fan resistor or the rad fan resistor. Away on holidays and unable to check. Greg

--- On Tue, 29/12/09, Hartmut Kiehn <hartis@live.com.au> wrote:

From: Hartmut Kiehn <hartis@live.com.au>
Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?
To: Syncro_T3_Australia@yahoogroups.com
Received: Tuesday, 29 December, 2009, 1:35 AM

Becomes more interesting as I never had any a/c installed and still have those resistors installed. What now? I will have a close look tomorrow. hartmut

From: Syncro_T3_Australia @yahoogroups. com [mailto:Syncro_ T3_Australia@ yahoogroups. com] On Behalf Of greg esposito
Sent: Tuesday, 29 December 2009 7:27 PM
To: Syncro_T3_Australia @yahoogroups. com
Subject: Re: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

not heater or radiator fan but non genuine a/c fan.Is this not part of what Micheal is removing. Greg
--- On Mon, 28/12/09, BenT Syncro <syncro@gmail. com> wrote:


From: BenT Syncro <syncro@gmail. com>
Subject: Re: [Syncro_T3_Australi a] AC wiring remove and unknown thing?
To: "Syncro_T3_Australia @yahoogroups. com" <Syncro_T3_Australia @yahoogroups. com>
Received: Monday, 28 December, 2009, 7:53 PM

On Dec 28, 2009, at 7:16 PM, "Les Harris" <leslieharris@ optusnet. com.au> wrote:

Greg,

I know about the two speed radiator fan but not three speed. Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight. It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les

Les,

It sounds to me like Greg is talking about his heater fan rather than the radiator fan.

Every post-86 model US-spec Vanagon I've ever owned has that fan resistor.

BenT

See what's on at the movies in your area. Find out now.


See what's on at the movies in your area. Find out now.
14
Hi Les,
I can't find a wiring diagram specifically for the syncro but this is what I have pieced together.  On the 2wd the relay 5 is used to trigger the 2nd stage of the rad fan. and is mounted in the fuse boxes as marked. The trigger is the 102deg C switch in the rad.  On the Syncro with the larger fan and current draw the rely was moved from the fuse box and mounted behind it on the wall.  it was upgraded to a 40A relay very heavy wires to and from it. This is the J101 you are talking about I think.  Not really sure but thats my best guess.  the ballast resister seems to be connected into the same loom but is not shown on any diagrams I've seen.

I have totally stripped out and repaired all the weiring from the AC.  there were very few soldered joint and lots of wires twisted together.  Not a very good installation.

Is there a wiring diagram for the syncro's ? showing locker wires and other syncro dedicated stuff?
 there dose not seem to be much in my version of the Bentley manual.

cheers,

Michael R
From: Les Harris <leslieharris@optusnet.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Tue, December 29, 2009 2:38:15 PM
Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

Can someone with a knowledge of the electrical system please tell me the function of J101, Radiator cooling fan relay2nd stage, on Bentleys 97.82.  Does that trigger the radiator cooling fan thermoswitch or is it the other way around?  I am trying to understand how the two speed fan system works.

Les

 

From: Syncro_T3_Australia @yahoogroups. com [mailto: Syncro_T3_Australia @yahoogroups. com ] On Behalf Of Les Harris
Sent: 29 December 2009 14:16
To: Syncro_T3_Australia @yahoogroups. com
Subject: RE: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

 

 

Greg,

I know about the two speed radiator fan but not three speed.  Bentleys 19.12 lists the cut in and cut out temperatures of Stage 1 and Stage 2.  

My fan has only ever run at full speed since I bought the Syncro and I will have to go looking for the resistor, which Ben Tan tells me is behind the LH headlight.  It tends to frighten anyone within earshot when it cuts in, particularly if I have stopped at a pedestrian crossing!

Les

 

From: Syncro_T3_Australia @yahoogroups. com [mailto: Syncro_T3_Australia @yahoogroups. com ] On Behalf Of greg esposito
Sent: 29 December 2009 13:54
To: Syncro_T3_Australia @yahoogroups. com
Subject: RE: [Syncro_T3_Australi a] AC wiring remove and unknown thing?

 

 

Yes they are heater fan resistors, most non gen a/c has a separate fan on t3. Mine has three speeds therefore needs two resistors for lower speeds. Greg


 

 

  

 

!


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15
Most Australian spec syncros have the large fan with the seperate wall mounted relay. (See Bentley 97.200)

Slow speed cuts in at 95 and is wired through a series resistance behind the headlight.

Fast speed (stage 2) is through the radiator fan stage 2 relay and supplies a full 12 volts to the radiator fan at 105 degrees by bypassing the resistors. These fans draw too much current to be run through the fuse box on high speed.


The seperate fan relay replaces J101 which is just a standard 30A relay.


> Les Harris <leslieharris@optusnet.com.au> wrote:
>
> Can someone with a knowledge of the electrical system please tell me the
> function of J101, Radiator cooling fan relay2nd stage, on Bentleys
> 97.82.
> Does that trigger the radiator cooling fan thermoswitch or is it the
> other
> way around? I am trying to understand how the two speed fan system
> works.
>
> Les
>
>
>
> _____
>
> From: Syncro_T3_Australia@yahoogroups.com
> [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Les Harris
> Sent: 29 December 2009 14:16
> To: Syncro_T3_Australia@yahoogroups.com
> Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?
>
>
>
>
>
> Greg,
>
> I know about the two speed radiator fan but not three speed. Bentleys
> 19.12
> lists the cut in and cut out temperatures of Stage 1 and Stage 2.
>
> My fan has only ever run at full speed since I bought the Syncro and I
> will
> have to go looking for the resistor, which Ben Tan tells me is behind
> the LH
> headlight. It tends to frighten anyone within earshot when it cuts in,
> particularly if I have stopped at a pedestrian crossing!
>
> Les
>
>
>
> _____
>
> From: Syncro_T3_Australia@yahoogroups.com
> [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of greg esposito
> Sent: 29 December 2009 13:54
> To: Syncro_T3_Australia@yahoogroups.com
> Subject: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?
>
>
>
>
>
>
> Yes they are heater fan resistors, most non gen a/c has a separate fan
> on
> t3. Mine has three speeds therefore needs two resistors for lower
> speeds.
> Greg
>
>
>
>
>
>
>
>
>
>
>
>
> <http://ca.toolbar.yahoo.com/> !
>
>
> <http://geo.yahoo.com/serv?s=97359714/grpId=13267315/grpspId=1709926240/m
> sgI
> d=7534/stime=1262055252/nc1=3848621/nc2=5741391/nc3=4836036>
16

Phill and Michael,

Now it is starting to make some sense!  Thank you both.  It is easy to misinterpret what’s going on when it is so hard to determine what is Syncro specific in the wiring diagrams.

Les

 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ] On Behalf Of plander@optusnet.com.au
Sent: 30 December 2009 08:05
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: RE: [Syncro_T3_Australia] AC wiring remove and unknown thing?

 

 

Most Australian spec syncros have the large fan with the seperate wall mounted relay. (See Bentley 97.200)

Slow speed cuts in at 95 and is wired through a series resistance behind the headlight.

Fast speed (stage 2) is through the radiator fan stage 2 relay and supplies a full 12 volts to the radiator fan at 105 degrees by bypassing the resistors. These fans draw too much current to be run through the fuse box on high speed.

The seperate fan relay replaces J101 which is just a standard 30A relay.


17
The fan circuit is not syncro specific, but hot country and air con specific. Our radiator is also larger than most countries.



> Les Harris <leslieharris@optusnet.com.au> wrote:
>
> Phill and Michael,
>
> Now it is starting to make some sense! Thank you both. It is easy to
> misinterpret what's going on when it is so hard to determine what is
> Syncro
> specific in the wiring diagrams.
>
> Les
>
>
>
> _____
>
> From: Syncro_T3_Australia@yahoogroups.com
> [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of
> plander@optusnet.com.au
> Sent: 30 December 2009 08:05
> To: Syncro_T3_Australia@yahoogroups.com
> Subject: Re: RE: [Syncro_T3_Australia] AC wiring remove and unknown
> thing?
>
>
>
>
>
> Most Australian spec syncros have the large fan with the seperate wall
> mounted relay. (See Bentley 97.200)
>
> Slow speed cuts in at 95 and is wired through a series resistance behind
> the
> headlight.
>
> Fast speed (stage 2) is through the radiator fan stage 2 relay and
> supplies
> a full 12 volts to the radiator fan at 105 degrees by bypassing the
> resistors. These fans draw too much current to be run through the fuse
> box
> on high speed.
>
> The seperate fan relay replaces J101 which is just a standard 30A relay.