VSC / TRAC defeating - is anyone closer?
02-08-2005, 05:30 AM
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Part 1: Active TRAC and Toyota Customer Service
I contacted Toyota back on March 14th, 2003 to express my concerns and dislike related to the Active TRAC feature. Here's the correspondence (Toyota's response at the very bottom):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customer (Scott Reed) 03/14/2003 10:51 AM
My current 2001 4Runner SR5 4x4 has both the VSC and Active TRAC (4x4) features. Both great addtions to an already wonderful vehicle especially when the weather turns bad as it has so many times this year.
Over the past few months I've discovered one MAJOR problem with Active TRAC system. I CANNOT turn it OFF. To date I've been in two (2) non-paved situtations in which Active TRAC system has prevented me from accessing my destination.
The most notable involved a long, heavily snow cover (~12") incline to our hunting camp. While trying to ascend the slope earlier this winter, the Active TRAC system (ABS) prevented wheel spin in the fresh deep snow and essentially destroyed all forward momentum the vehicle had gained. Once the momentum was lost, I was unable to regain any forward motion and had to back all the way down to the base of the slope and attempted a second "run" at the hill. The second run only made it a bit further before the Active TRAC once again stopped my forward momentum.
The only thing I was able to do at the point was move aside as best I could to permit my buddies to pass in their SUV's (Explorer/Isuzu Troop). I hitched a ride with one them the rest of the way to camp in completely humiliated. I've read and re-read the manual several times at this point and even attempted another short off-road adventure verify if I may had neglected to turn off or engage something that would've disable the Active TRAC. The second attempt proved futile, and I discovered (to my astonishment) that I CANNOT disable the Active TRAC feature.
I realize most peoples SUV do not typically see any off pavement action, but after researching the 4Runner for several months, I elected to purchase a Toyota 4Runner SUV based on its well noted off-road capabilites and relibility. I truly believe the Active TRAC feature is justifiable and needed for most surface and fowl weather environments. But I also believe there are limitation to its usefulness in non-typical environments where some amount of free wheel spin should be expected such as fresh snow or loose sand to sustain momentum. The above describes just one such scenario.
Additionally, I fear I may damage the ABS system and/or the brake pads/rotors by repeatedly encountering these types of situations over a period of years (as I'm sure I will if I decide to keep my 4Runner as long as I originally planned).
The reason for my inquiry is to request some information regarding how I can manually disable the Active TRAC feature. The manual notes that a dash mounted "TRAC OFF" switch is available for the 4x2 4Runner models. Can this "TRAC OFF" feature be added to my 4x4 4Runner?? If not, is there another solution??
Thank you for your time.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Robert) 03/17/2003 10:52 AM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We appreciate your interest in the 4Runner.
By locking the center differential, the Vehicle Skid Control will be turned off. This should override the Active TRAC system.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~
If you wish, you can attempt to email Toyota Customers Relations from this link. Please reference file #200303170043 or incident #030314-000060 if possible.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customer (Scott Reed) 03/14/2003 10:51 AM
My current 2001 4Runner SR5 4x4 has both the VSC and Active TRAC (4x4) features. Both great addtions to an already wonderful vehicle especially when the weather turns bad as it has so many times this year.
Over the past few months I've discovered one MAJOR problem with Active TRAC system. I CANNOT turn it OFF. To date I've been in two (2) non-paved situtations in which Active TRAC system has prevented me from accessing my destination.
The most notable involved a long, heavily snow cover (~12") incline to our hunting camp. While trying to ascend the slope earlier this winter, the Active TRAC system (ABS) prevented wheel spin in the fresh deep snow and essentially destroyed all forward momentum the vehicle had gained. Once the momentum was lost, I was unable to regain any forward motion and had to back all the way down to the base of the slope and attempted a second "run" at the hill. The second run only made it a bit further before the Active TRAC once again stopped my forward momentum.
The only thing I was able to do at the point was move aside as best I could to permit my buddies to pass in their SUV's (Explorer/Isuzu Troop). I hitched a ride with one them the rest of the way to camp in completely humiliated. I've read and re-read the manual several times at this point and even attempted another short off-road adventure verify if I may had neglected to turn off or engage something that would've disable the Active TRAC. The second attempt proved futile, and I discovered (to my astonishment) that I CANNOT disable the Active TRAC feature.
I realize most peoples SUV do not typically see any off pavement action, but after researching the 4Runner for several months, I elected to purchase a Toyota 4Runner SUV based on its well noted off-road capabilites and relibility. I truly believe the Active TRAC feature is justifiable and needed for most surface and fowl weather environments. But I also believe there are limitation to its usefulness in non-typical environments where some amount of free wheel spin should be expected such as fresh snow or loose sand to sustain momentum. The above describes just one such scenario.
Additionally, I fear I may damage the ABS system and/or the brake pads/rotors by repeatedly encountering these types of situations over a period of years (as I'm sure I will if I decide to keep my 4Runner as long as I originally planned).
The reason for my inquiry is to request some information regarding how I can manually disable the Active TRAC feature. The manual notes that a dash mounted "TRAC OFF" switch is available for the 4x2 4Runner models. Can this "TRAC OFF" feature be added to my 4x4 4Runner?? If not, is there another solution??
Thank you for your time.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Robert) 03/17/2003 10:52 AM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We appreciate your interest in the 4Runner.
By locking the center differential, the Vehicle Skid Control will be turned off. This should override the Active TRAC system.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~
If you wish, you can attempt to email Toyota Customers Relations from this link. Please reference file #200303170043 or incident #030314-000060 if possible.
Last edited by hillbilly; 02-08-2005 at 05:57 AM.
02-08-2005, 05:42 AM
#283
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Part 2: Active TRAC and Toyota Customer Service
Below is my rebuttal to Toyota's initial response and their second reply:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Manually disabling Active TRAC... [Incident: 030314-000060]
Customer (Scott Reed) 03/18/2003 05:57 AM
Robert-
Your response is not correct.
Locking the center differential and depressing the dash mounted "VSC" switch only disables the Virtual Skid Control, not the Active TRAC. I've tested this numerous times to date. The manual states the 4x2 4Runners have a "TRAC OFF" dash mounted switch which is used to disable the traction control system. The manual then proceeds to describe the 4x4 4Runner, but does not state anything about a "TRAC OFF" feature. Reading further, it states that with the center differential locked and the VSC disabled, the Active TRAC may become disabled under excessive use when it senses an overheating of the ABS system (denoted by the "TRAC OFF" icon on the dash). The Active TRAC deactivation only lasts until the ABS system has cooled to an acceptable level, then reactivates automatically.
My desire to manually disable the Active TRAC system on my 4x4 4Runner is to prevent damage/overheating to the ABS system and brakes at times when I know some amount of free wheel spin in unpreventable (as described in my initial email). One of the main reasons I purchased a Toyota 4Runner was due to its well noted exceptional off-road capabilities and reliability. The Active TRAC system severely hinders the 4Runners once renowned off-road abilities, and I've very disappointed to discover I cannot manually disable it and may ultimately determine how long I keep my 4Runner (and will definitely effect which manufactures 4x4 will replace it).
Your response is a common misconception as to how the VSC/Active TRAC system works. To my great disappointment, even my local Toyota dealers service technicians had this same misunderstanding. The VSC and Active TRAC are two separate and independant systems. Disable VSC has no effect on the Active TRAC system.
If I could, I'd like to request a TSB (Technical Service Bulletin) be released by Toyota to address this issue as it relates my 2001 4Runner SR5 4x4 as soon as possible. I know this is a great concern to may other 4Runner/Sequoia owners as there are numerous threads posted on various Toyota 4Runner/Sequoia technical formus regarding this exact issue, and some already related to the new 2003 4Runners.
Thank you for your time.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Edward) 03/20/2003 12:21 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your dissatisfaction with the inability to disable the active traction control system on your 4Runner.
We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin) to assist with disabling this feature.
Your feedback is appreciated. It is through comments such as yours that we are able to review and improve our products.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Manually disabling Active TRAC... [Incident: 030314-000060]
Customer (Scott Reed) 03/18/2003 05:57 AM
Robert-
Your response is not correct.
Locking the center differential and depressing the dash mounted "VSC" switch only disables the Virtual Skid Control, not the Active TRAC. I've tested this numerous times to date. The manual states the 4x2 4Runners have a "TRAC OFF" dash mounted switch which is used to disable the traction control system. The manual then proceeds to describe the 4x4 4Runner, but does not state anything about a "TRAC OFF" feature. Reading further, it states that with the center differential locked and the VSC disabled, the Active TRAC may become disabled under excessive use when it senses an overheating of the ABS system (denoted by the "TRAC OFF" icon on the dash). The Active TRAC deactivation only lasts until the ABS system has cooled to an acceptable level, then reactivates automatically.
My desire to manually disable the Active TRAC system on my 4x4 4Runner is to prevent damage/overheating to the ABS system and brakes at times when I know some amount of free wheel spin in unpreventable (as described in my initial email). One of the main reasons I purchased a Toyota 4Runner was due to its well noted exceptional off-road capabilities and reliability. The Active TRAC system severely hinders the 4Runners once renowned off-road abilities, and I've very disappointed to discover I cannot manually disable it and may ultimately determine how long I keep my 4Runner (and will definitely effect which manufactures 4x4 will replace it).
Your response is a common misconception as to how the VSC/Active TRAC system works. To my great disappointment, even my local Toyota dealers service technicians had this same misunderstanding. The VSC and Active TRAC are two separate and independant systems. Disable VSC has no effect on the Active TRAC system.
If I could, I'd like to request a TSB (Technical Service Bulletin) be released by Toyota to address this issue as it relates my 2001 4Runner SR5 4x4 as soon as possible. I know this is a great concern to may other 4Runner/Sequoia owners as there are numerous threads posted on various Toyota 4Runner/Sequoia technical formus regarding this exact issue, and some already related to the new 2003 4Runners.
Thank you for your time.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Edward) 03/20/2003 12:21 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your dissatisfaction with the inability to disable the active traction control system on your 4Runner.
We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin) to assist with disabling this feature.
Your feedback is appreciated. It is through comments such as yours that we are able to review and improve our products.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
02-08-2005, 05:50 AM
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Part 3 (and final): Active TRAC and Toyota Customer Service
Responses from different Toyota Reps as I challenged their responses:
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Sarina) 03/20/2003 12:28 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your dissatisfaction with the inability to disable the active traction control system on your 4Runner.
We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin)to assist with disabling this feature.
Your feedback is appreciated. It is through comments such as yours that we are able to review and improve our products.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~~~~~
Manually disabling Active TRAC... [Incident: 030318-000]
Customer (Scott Reed) 03/21/2003 07:45 AM
Edward/Sarina-
If your statement "We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin) to assist with disabling this feature" is factually based, can you please explain something to me.
If an abnormality in operation/function of a Toyota vehicle is a requirement for a TSB to be initiated/generated, how is it that TSB's are commonly generated for such things as "Daytime Running Light - Disabling Procedure" (TSB EL011-00) for the 2000 4Runners (http://www.alldata.com/TSB/60/006033AC.html)?? The EL011-00 TSB directly addresses how to disable a "normal" vehicle operation (not to mention that DRL's are a requirement by some state laws in certain situations), yet Toyota took the time to generate a TSB detailing how to properly disable DRL's.
Below, your response states that the Active TRAC system is considered to be functioning "normally", yet you go on to state that my request for a TSB detailing how to properly manually disable Active TRAC system for those times when some amount of wheel spin is unpreventable or even appropriate will not even be considered by Toyota?!? I find this impossible, especially when this feature is currently available on the 2WD 2001 4Runner models.
This issue is particularly troubling knowing there are numerous other Toyota Sequoia and 4Runner 4WD owners (even owners of new 2003 4WD 4Runners) looking/asking for information on this very problem <https://www.yotatech.com/forums/showthread.php?threadid=6805> .
Again, I am requesting a TSB be generated detailing how to properly manually disable the Active TRAC system on a 2001 4Runner SR5 4WD.
Thank you.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Angelina) 03/24/2003 01:14 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your frustrations over this issue.
You are correct in that it is not truly possible to definitively state whether or not a Technical Service Bulletin will be released in the future, and your are correct in that TSBs do cover a broad spectrum of technical issues and are not limited to abnormal vehicle operation. Toyota culls information from multiple sources when considering the merit of releasing a TSB, and case documentation within our Customer Relations Department is one such source. While we are sorry we do not at this time have a means by which to disable the Active TRAC system, and though we cannot issue a TSB based on a singular request, your comments and requests on this matter have been, and will remain, fully documented at our Headquarters facility.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Sarina) 03/20/2003 12:28 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your dissatisfaction with the inability to disable the active traction control system on your 4Runner.
We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin)to assist with disabling this feature.
Your feedback is appreciated. It is through comments such as yours that we are able to review and improve our products.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
~~~~~~~~~~~~~~~~~~~~~~
Manually disabling Active TRAC... [Incident: 030318-000]
Customer (Scott Reed) 03/21/2003 07:45 AM
Edward/Sarina-
If your statement "We currently do not offer the ability to disable the active traction control system on 2001 4-wheel drive 4Runners. Because this is considered a normal operation of the vehicle, there would be no TSB (Technical Service Bulletin) to assist with disabling this feature" is factually based, can you please explain something to me.
If an abnormality in operation/function of a Toyota vehicle is a requirement for a TSB to be initiated/generated, how is it that TSB's are commonly generated for such things as "Daytime Running Light - Disabling Procedure" (TSB EL011-00) for the 2000 4Runners (http://www.alldata.com/TSB/60/006033AC.html)?? The EL011-00 TSB directly addresses how to disable a "normal" vehicle operation (not to mention that DRL's are a requirement by some state laws in certain situations), yet Toyota took the time to generate a TSB detailing how to properly disable DRL's.
Below, your response states that the Active TRAC system is considered to be functioning "normally", yet you go on to state that my request for a TSB detailing how to properly manually disable Active TRAC system for those times when some amount of wheel spin is unpreventable or even appropriate will not even be considered by Toyota?!? I find this impossible, especially when this feature is currently available on the 2WD 2001 4Runner models.
This issue is particularly troubling knowing there are numerous other Toyota Sequoia and 4Runner 4WD owners (even owners of new 2003 4WD 4Runners) looking/asking for information on this very problem <https://www.yotatech.com/forums/showthread.php?threadid=6805> .
Again, I am requesting a TSB be generated detailing how to properly manually disable the Active TRAC system on a 2001 4Runner SR5 4WD.
Thank you.
Scott Reed
mailto:scottreed@psu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Response (Angelina) 03/24/2003 01:14 PM
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.
We apologize for your frustrations over this issue.
You are correct in that it is not truly possible to definitively state whether or not a Technical Service Bulletin will be released in the future, and your are correct in that TSBs do cover a broad spectrum of technical issues and are not limited to abnormal vehicle operation. Toyota culls information from multiple sources when considering the merit of releasing a TSB, and case documentation within our Customer Relations Department is one such source. While we are sorry we do not at this time have a means by which to disable the Active TRAC system, and though we cannot issue a TSB based on a singular request, your comments and requests on this matter have been, and will remain, fully documented at our Headquarters facility.
Your email has been documented at our National Headquarters under file #200303170043. If we can be of further assistance, please feel free to contact us.
National Customer Relations
Last edited by hillbilly; 02-08-2005 at 05:59 AM.
02-08-2005, 12:55 PM
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Ducky, why don't you guys look at how the "ABS Overheating sensor" is activated, it seems if you could manually activate the overheating sensor that would shut down the Active Trac system?
02-08-2005, 01:11 PM
#288
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Ducky,
If you're heading to the junk yard, try to get the actual connector (for the TRAC switch) and a short run of the wires. Would make it easier to wire this switch.
Andreas
If you're heading to the junk yard, try to get the actual connector (for the TRAC switch) and a short run of the wires. Would make it easier to wire this switch.
Andreas
02-08-2005, 01:33 PM
#289
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Scott,
Thanks for your perseverance with Toyota. It is maddening to read those damned, canned, responses. What other proof do they need? I doubt anyone actually read through this 6,000 mile long thread. Frustrating.
Andreas
Thanks for your perseverance with Toyota. It is maddening to read those damned, canned, responses. What other proof do they need? I doubt anyone actually read through this 6,000 mile long thread. Frustrating.
Andreas
02-08-2005, 01:42 PM
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OMG!!! I WANT MINE!!!!!
I havent found ANY in the area with a trac switch or else I woulda already have the switch... i
Ill post more when i get home im late as it is...
I havent found ANY in the area with a trac switch or else I woulda already have the switch... i
Ill post more when i get home im late as it is...
02-09-2005, 05:49 PM
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I would like to thank everyone for the hard work on trying to figure this problem out. Took quite a while to go through all the posts on this topic, and well worth it. Finally did my first donut!!! 
I was looking at a post from Ducky of a VSC ECU module. Was this for the 4-Runners? What year and where would I find it? Everyone is trying to correct or adjust the output of this module. Let's look at the input side. What if we kill the ignition to this module and not let it turn on. My guess is that pin# 7 (labled IG1) might be the ignition wire. If this works it may correct the problem of having to restart the vehicle to reset the ABS, VSC, and TRAC.
Thanks again to everone! I just wanted to throw a little twist into the solution.
I was looking at a post from Ducky of a VSC ECU module. Was this for the 4-Runners? What year and where would I find it? Everyone is trying to correct or adjust the output of this module. Let's look at the input side. What if we kill the ignition to this module and not let it turn on. My guess is that pin# 7 (labled IG1) might be the ignition wire. If this works it may correct the problem of having to restart the vehicle to reset the ABS, VSC, and TRAC. Thanks again to everone! I just wanted to throw a little twist into the solution.
02-11-2005, 01:49 PM
#293
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Coda,
Excellent suggestion. Hopefully others will read your thoughts and chime in. I believe the schematics posted are 4Runner specific.
Ducky,
Get the ol' box yet???
Andreas
Excellent suggestion. Hopefully others will read your thoughts and chime in. I believe the schematics posted are 4Runner specific.
Ducky,
Get the ol' box yet???
Andreas
02-11-2005, 02:25 PM
#295
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Thread Starter
Just a comment - the TRAC OFF switches that Ducky and I now have appear to be a mommentary in action. In other words, they do not 'click' off or on. Hopefully someone can decipher what three wires feed the switch (from the schematics).
Andreas
Andreas
02-12-2005, 06:23 AM
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Andreas,
You have the switch for the 2 wheel drive model? What color are the wires? Which wires are actually the switch wires (the 2 that close when switch is pressed)? Does the switch light up? Sorry so many questions, my local dealer did not have any switches in stock. I want to find the VSC ECU before I order anything.
You have the switch for the 2 wheel drive model? What color are the wires? Which wires are actually the switch wires (the 2 that close when switch is pressed)? Does the switch light up? Sorry so many questions, my local dealer did not have any switches in stock. I want to find the VSC ECU before I order anything.
02-12-2005, 06:49 AM
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Originally Posted by Coda99
Andreas,
You have the switch for the 2 wheel drive model? What color are the wires? Which wires are actually the switch wires (the 2 that close when switch is pressed)? Does the switch light up? Sorry so many questions, my local dealer did not have any switches in stock. I want to find the VSC ECU before I order anything.
You have the switch for the 2 wheel drive model? What color are the wires? Which wires are actually the switch wires (the 2 that close when switch is pressed)? Does the switch light up? Sorry so many questions, my local dealer did not have any switches in stock. I want to find the VSC ECU before I order anything.
Coda = We do not have any wires, we are not pre wired for this mod, and the switch does not have any wires with it.. so we are going to have to wire it ourselves... (Break out the soldering Pencil) . But until i find out whats the deal with the 3 pins Im stuck, Im hoping someone can take a pic of the wire plug that goes into the switch...
Last edited by Ducky; 02-12-2005 at 06:52 AM.
02-12-2005, 08:01 AM
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[QUOTE=Ducky]These are the pics sent by Hawaiian4R (THANKS!!!)
If you look at these pics we posted earlier (still will need to be confirmed by someone with a switch) but it *looks* like only the top and bottom pins are used (the middle unused) but can someone with a switch confirm which pins are used?
If you look at these pics we posted earlier (still will need to be confirmed by someone with a switch) but it *looks* like only the top and bottom pins are used (the middle unused) but can someone with a switch confirm which pins are used?
02-12-2005, 10:58 AM
#300
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Coda,
I looked at the switch closely and the wording seems to me printed on - rather than molded in. So I do not think it lights up.
Ducky,
I agree that from the pics it looks as if only two pins are in use. It may be that different applications of this switch (Camry, etc.) have a use for the other pin. Whatever we end up interrupting with this switch will need to do its thing based on a mommentary push of the switch, since it does not click on or off. If I had the time, I'd go back through all of the 5,987,657 responses to this thread and compile all of the actual suggestions/thoughts that people have made. Sure would make it a bit easier to digest what we may be up against.
I did make three jumpers this weekend but have not had a chance to actually test. My father seems to think that an interruption of the ground wire at the pressure switch would do the trick. I'll post back after I hook them up. The problem is finding small enough male/female spade connectors. Had to do some jury rigging with the connectors I found.
Andreas
I looked at the switch closely and the wording seems to me printed on - rather than molded in. So I do not think it lights up.
Ducky,
I agree that from the pics it looks as if only two pins are in use. It may be that different applications of this switch (Camry, etc.) have a use for the other pin. Whatever we end up interrupting with this switch will need to do its thing based on a mommentary push of the switch, since it does not click on or off. If I had the time, I'd go back through all of the 5,987,657 responses to this thread and compile all of the actual suggestions/thoughts that people have made. Sure would make it a bit easier to digest what we may be up against.
I did make three jumpers this weekend but have not had a chance to actually test. My father seems to think that an interruption of the ground wire at the pressure switch would do the trick. I'll post back after I hook them up. The problem is finding small enough male/female spade connectors. Had to do some jury rigging with the connectors I found.
Andreas
