Porsche PSM lights can illuminate for a variety of reasons, including low tire pressure, faulty ABS wheel speed sensors, and after you change the battery.
A Porshe OBD-II scanner will be required to diagnose the issue, however if a faulty ABS wheel speed sensor is at blame, the ABS light and warning will also illuminate. Even the check engine light may illuminate occasionally.
Porsche PSM failure warning messages frequently appear when it’s chilly outside or it’s raining heavily. Restarting the car will frequently turn off the PSM light in these circumstances.
Drive your Porsche for 10 minutes if the PSM light appeared after you replaced the battery, and it should go off.
In This Article...
Wheel Speed Sensor for ABS
A broken ABS wheel speed sensor is one of the most frequent problems that cause Porsche ABS or PSM lights to illuminate. When sensors malfunction, ABS modules no longer get wheel speed information. They are susceptible to injury by rocks as well.
You can go to the ABS or PSM control unit if you have an OBD-II scanner that can read problems from the ABS module. Select Live Data next. As you drive the automobile attentively, you can see the speed values for each wheel here.
You can replace the Porsche ABS wheel speed sensor yourself with little difficulty.
If the ABS/PSM light continues to illuminate and the fault code continues to point to an ABS sensor issue, check the wire harness. If the wiring harness connecting the sensor and the ABS module is in good condition, the ABS module may be the problem.
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Unfortunately, there are a number of reasons why PSMs fail. Why not bring the automobile to a reputable independent before you start down the rabbit hole of having a dealer spend your money aimlessly looking around? A few hundred additional dollars could be well spent to have an independent business confirm the diagnosis.
The center of the steering won’t abruptly shift. A PSM failure would occur if the steering rack sensor was truly damaged. This shouldn’t impair your ability to operate the vehicle, though. The compromise is that the Porsche system that relies on your desired input is no longer functional because the car no longer has that knowledge.
On the race track, Porsche Stability Management
Porsche Stability Management (PSM), which provides a high level of active driving safety at longitudinal and lateral limitations, is at the core of the active driving dynamics control systems. The PSM includes the ABS (anti-lock brake system), ASR (anti-slip regulation), MSR (engine drag torque control), ABD (automatic brake differential), “precharging of the brake system,” and “brake assist” features. Precharging the brake system improves braking readiness, which in turn shortens emergency stopping distances. The PSM hydraulic unit transfers braking fluid to the wheel brakes before the brake pedal is depressed if the accelerator pedal is swiftly depressed, as is frequently the case before an emergency stop. This ensures that the brake system is perfectly ready for the impending braking by causing the brake pads to lightly press against the brake discs. As a result, stopping distances are shortened and the response behavior of the brake system is greatly improved.
PSM has two stages for turning off. The system features an individually switchable mode with the name PSM Sport in conjunction with the Sport Chrono Package. This mode is accessed by pressing the PSM button in the center console. “PSM Sport” is substantially different from the default mode in terms of functionality and enables ambitious drivers to push their Porsche to its absolute limits, for instance on a racetrack. The function permits noticeably larger yaw movements around the vertical axis and a greater amount of slip on the drive wheels than “PSM On,” enhancing the vehicle’s dynamic performance. This eliminates the need for even seasoned sporty drivers to completely deactivate the PSM. Pressing and holding the PSM button initiates the “PSM Off” mode. This is in line with the Porsche philosophy that permits users to completely turn off the control system at any time. Strong braking in the ABS control range, however, reactivates the entire stabilizing effect of the PSM system in “PSM Off” and “PSM Sport” mode, but only until the brake is lifted once again.
My Porsche’s PSM and ABS lights have both turned on. Why does that matter?
Although turning on both of these failure lights will undoubtedly make you worry a pricey repair, many Porsche owners have gone through this situation in the past and avoided incurring a significant expense.
A broken brake light switch, troubles with an ABS, speed, or MAF sensor, or problems with a wire loom are a few of the potential causes (particularly in a 996). It could, however, have been brought on by a more expensive problem, such as an ABS pump failure.
Don’t gamble with your brakes. As soon as you can, make an appointment for your car to be inspected by a Porsche expert to determine what the problem is.
Does Porsche PSM resemble PASM?
The Porsche Active Suspension Management system (PASM) is an electronic active damping system that is standard on the most potent variants of Porsche’s current Boxster, Cayman, Macan, and Cayenne models but available as an optional extra on all of the lesser-powered vehicles. Additionally, the system is a standard feature on all 911 and Panamera models.
Porsche PSM (Porsche Stability Management), a stability control system that attempts to improve traction while reducing understeer and oversteer, should not be confused with Porsche PASM.
The PASM system includes a special collection of fluid-filled dampers, each of which is equipped with a valve that can be used to restrict the flow of oil inside the component, changing how stiff the suspension of the vehicle is. The driver can choose between two damper settings using a button located on the center console of the vehicle.
The damper valve is left open in Normal mode, allowing fluid to flow freely. According to Porsche, this environment combines performance and comfort. By closing the damper valve and limiting the flow of oil, sport mode produces a stiffer ride that, in Porsche’s opinion, improves handling.
Sports vehicles like the 718 Cayman and Boxster come with PASM, which lowers the ride height by 10mm. The technology can also be used in conjunction with Porsche’s air suspension system, which is installed in the Macan and Cayenne, to provide a ride height that is adjustable in six steps.
Porsche’s Active Suspension Management system, when available as an option, is priced in accordance with the model for which it is specified. It costs roughly PS1,000 for the 718 Boxster and Cayman; the Cayenne has a similar price point, but the Macan offers it for about PS800. For about PS1,900 on the Macan and PS2,600 on the Cayenne, the system on the two Porsche SUVs can also be specified with air suspension.
We’ve driven examples of every Porsche model that has PASM installed, and the feature actually alters how the cars drive noticeably. Depending on the specific model, Sport mode substantially improves the already remarkable body control, handling significant compressions and abrupt crests with ease. However, if you’ve also selected one of the larger wheel sizes, the damping may be a little stiff on UK roads.
We advise choosing PASM adaptive suspension if you’re interested in a Boxster, Cayman, Macan, or Cayenne and have the extra cash to spare. It gives the Cayenne more flexibility, the Boxster and Cayman more capability, and it transforms the Macan into one of the best-handling SUVs on the road.
Would you choose the Active Suspension Management system from Porsche? Please share with us in the comments area below.
How is a Porsche PSM reset?
The PCM on a number of Porsche vehicles keeps restarting, according to Porsche. There is a simple solution to this problem. Please observe the actions below:
- To get the PCM to reboot, press and hold the PCM info button for roughly 10 seconds.
- Choose the next option from the PCM CAR menu right away: Option > Set PCM System > Reset PCM > Handover of the Vehicle > Yes, I agree
Describe Porsche PCM.
The central control module for all audio, communication, navigation, and basic vehicle operations in your Porsche is called the Porsche Communication Management, or PCM. The PCM system has a sizable touchscreen display with high resolution for simple and practical usage.
What does PSM on a car mean?
Porsche Stability Management (PSM) (Button Marked “PSM OFF”) PSM is an automatic control system that stabilizes the vehicle at the limits of dynamic driving performance and is included as standard. Driving direction, speed, yaw velocity, and lateral acceleration are all continuously monitored by sensors.
Do I have PASM on my Porsche?
The FAQ will answer all of your queries if you click on the underlined terms in this page for PASM or Sport Chrono.
In conclusion, both sport chrono and sport chrono without PAM are valid options. For each, there is a different button. If you have a PASM button (which resembles a shock), you have PASM; if you don’t, you don’t. The button is considerably simpler to find than wires coming out of shock towers, which can also be checked.
What brings on PSM?
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How can the Porsche PCM be turned off?
- Select CAR and press it.
- Touch the tab with the same name in the header or press the OPTION button.
- “SET PCM-system” > “Display PCM” > “Screen” should be selected.
- Decide to “Switch off the display.”
- Verify the prompt that pops up. re-turning on the display Anytime you choose, you can turn an off display back on.
Is the Porsche PCM upgradeable?
There are numerous upgrade options available for the PCM. This covers both aftermarket goods and the PCCM, Porsche’s new system for vintage Porsches.
It is important to remember that specific firmware versions are required for hardware updates. Therefore, you must verify compatibility before making upgrades. You can also replace an outdated PCM with a more recent model. Just keep in mind that they must match the vehicle’s VIN because they are factory-coded.
Having said that, you may update your GPS and Bluetooth head unit if you have a PCM 2.1. For PCM 2.1, aftermarket firmware update disks are also accessible.
With firmware and map updates, PCM 3.0 enhancements like LCD and GPS are possible. In the PCM 3.1, SSD can be added in place of HDD. Along with Digital radio, Apple Carplay and Android Auto can also be fitted.
For owners of vintage Porsches from the 1960s or 1990s. The Porsche PCCM and PCCM Plus have been released. For vintage Porsches having DIN 1 and DIN 2 slots, there is a contemporary infotainment system called the Porsche Classic Communication Managementsystem.
The PCCM is offered in two versions with a 3.5-inch or 7-inch color touch display and fits all 996 and 986 models. On the 911, from the F models to the type 993, they can also be added. The touch display with DAB+, Apple CarPlay, Bluetooth, iPhone interface, USB, AUX, and Google integration in the PCCM Plus are the key features of the PCCM.