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03-01-2009, 07:33 PM
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Porsche Chatter
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Join Date: May 2008
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PSM won't switch off
Hello folks. I'm a relatively new owner of an 06 CS. After several months of getting familiar with the car, I decided to have some cheap thrills in a vacant parking lot. I attempted to switch off PSM, but the LED didn't light up, there wasn't a chime, and the PSM indicator lamp also didn't illuminate. I checked both PSM fuses, and they're ok. I've never received a PSM error message. But I've also never seen the PSM lamp illuminate during (mostly calm) driving. Have any of you experienced a bad PSM switch, or is this a sign of trouble with PSM itself? I'll be paying the dealer a visit soon...
My apologies if this has already been covered, but I couldn't find any mention of it.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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03-01-2009, 08:59 PM
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Site Donor
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Re: PSM won't switch off
I do not Know if this will help? With mine i have found that i have to hold the switch for a short while (count to 10).then the light will display.P.S.M never fully disengages,when switched "off" it will just not interfere as much.....I'm sure you will find the topic well discussed on this forum,in much greater depth and with greater Knowledge than mine.....
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03-01-2009, 09:25 PM
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Homewrecking Super Mod
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Re: PSM won't switch off
That's weird. I have a 2008 and the PSM will toggle on-off instantaneously when pressing the switch. When turning off, I get the "ding" warning and the dash washing.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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Pete
2008 Meteor Grey Cayman S
2007 Blue Slate Infiniti G35s 6-speed
 
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03-01-2009, 09:31 PM
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Re: PSM won't switch off
Originally Posted by PistolPete13
That's weird. I have a 2008 and the PSM will toggle on-off instantaneously when pressing the switch. When turning off, I get the "ding" warning and the dash washing.
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+1. My 2006 CS is exactly the same.
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Dan
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03-01-2009, 10:52 PM
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Re: PSM won't switch off
there ya go!  I guess the darn ding is not working properly  .Update on my ding.Upon reading the Gentlemans problem i went up to the shop fired the car up and pressed me button got the dash display but no "ding".Then this morning i discovered that it does not give the audible "warning" unless you have your seatbelt on.Which i found interesting.The seatbelt warning wipes out the P.S.M. WARNING. Thank God for the safety Gods! Just where would i be without them? Apparently wrapped around a tree with no seatbelt on. 
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Last edited by madcow; 03-02-2009 at 12:39 PM.
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03-10-2009, 07:02 PM
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Porsche Chatter
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Join Date: May 2008
Location: CA
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Re: PSM won't switch off
It took three trips to the dealer, but they finally sorted out the problem. They replaced the switch, and that temporarily solved the problem, according to the service advisor. But when I tried it, PSM still wouldn't turn off. In the end, it was a bad wire connection between the PSM switch and the control unit. Nothing serious, but tedious to diagnose because there were no fault codes. Now I can autocross without the electronic nannies.
Thanks for your replies!
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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03-11-2009, 10:00 AM
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Moderator & 11 Year PCA Member
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Join Date: Jan 2006
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Re: PSM won't switch off
The good news here is that your driving isn't so bad that PSM is on always!!
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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__________________
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The search tool is your friend. It is very
likely that your question has already been
answered countless times.Very,very likely.
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Cayman S - a portable amusement park 
- 2006 Cayman S
- 2003 Dakota SXT
- 1963 Studebaker Avanti, R2, 4-Speed
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LL
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03-11-2009, 10:30 AM
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Homewrecking Super Mod
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Join Date: Aug 2005
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Re: PSM won't switch off
Nice to see that this was taken care of!
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Pete
2008 Meteor Grey Cayman S
2007 Blue Slate Infiniti G35s 6-speed
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03-11-2009, 03:23 PM
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Porsche Chatter
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Join Date: May 2008
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Re: PSM won't switch off
Originally Posted by fmarshall
The good news here is that your driving isn't so bad that PSM is on always!!
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The car has such astonishing levels of grip that I really can't safely approach the PSM threshold on public roads.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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