Common dash warning lights in the Porsche 991 911 are check engine/EPC, abs, traction, srs airbag & service messages, but the full list of warning lights is shown below.
If you prefer a multi manufacturer OBD2 scan tool tool that works on this Porsche 991 911 & other makes & models, we highly recommend this iCarsoft CR PRO +
Porsche 991 911 Check Engine Warning Light Meaning
The check engine warning lamp illuminates when the ignition is switched on & turns off when the engine starts.
If the engine lamp illuminates when the engine is running, a fault has been detected & you should get the fault diagnosed as soon as possible. Watch our video on the most common reasons why your Porsche Check Engine Light Is Illuminated
With the lamp illuminated, the vehicle may enter limp-home mode. Limp-home mode reduces vehicle performance to safeguard against any further damage to the vehicle. You may also see the messages FAULT OF THE ENGINE CONTROL SYSTEM or ENGINE CONTROL FAULT VISIT WORKSHOP DRIVE ON POSSIBLE
To diagnose/reset this check engine light, and remove the vehicle from Limp-home mode, we recommend the iCarsoft POR V1.0. With this tool, you can also view lots of live data like temperatures, pressures from all areas of the engine and transmssion system.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Airbag Warning Light Meaning
The airbag warning lamp illuminates, as a bulb check, when the vehicle's ignition is switched on & will turn off when the engine is started.
Watch our video on the most common reasons why your Porsche SRS Airbag Light Is Illuminated
If the lamp illuminates again while driving, there is a fault with the airbag system. You can diagnose & reset the airbag fault codes & warning light with the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 ABS Warning Light Meaning
The ABS warning lamp illuminates briefly, as a bulb check, when the vehicle's ignition is switched on & will turn off when the engine has started.
If the lamp remains on while driving there is a fault with the ABS system. Drive with care, avoiding heavy brake pedal application.
Watch our video on the most common reasons why your Porsche ABS/PSM Light Is Illuminated
You can diagnose faults in the ABS system with the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Traction Control Warning Light Meaning
The PSM traction Control lamp flashes when the system is active and the car is struggling for traction for example when driving over snow, ice, dirt roads.
If there is a fault with the system, it remains illuminated and the instrument panel displays a warning message. It is normally illuminated alongside the ABS warning light.
To diagnose a fault in the PSM/ABS system, we recommend the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 EPB Electronic Parking Brake System Warning Light Meaning
The Electric Parking Brake (EPB) warning lamp illuminates if the EPB is correctly applied.
If the lamp illuminates during normal driving conditions, a fault has been detected. To find faults in this system, or calibrate the EPB electronic parking brake, open & close the calipers for brake bad removal/refitting we recommend the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Brake Exclamation Warning Light Meaning
The brake warning lamp illuminates briefly, as a bulb check, when the vehicle's ignition is switched on.
If the lamp illuminates red while driving, suspect low brake fluid level or a fault with the ABS braking system.
To diagnose a fault in the braking system of your Porsche, we recommend the iCarsoft POR V1.0.
The tool is in stock with same day dispatch and worldwide delivery.
Porsche 991 911 TPMS Tyre Pressure Warning Light Meaning
The Tyre Pressure Monitoring System (TPMS) lamp illuminates yellow to warn that one or more tyres are significantly under-inflated.
Stop the vehicle as soon as possible, when safe to do so. Check the tyre pressures. Inflate to the recommended pressure.
The lamp flashes to indicate a system fault. To diagnose a TPMS fault, we recommend the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Oil Can Warning Light Meaning
If the low oil pressure warning lamp flashes or illuminates while driving, stop the vehicle as soon as safety permits. Switch off the engine immediately.
Check and top up the oil level, if necessary. Start the engine. If the lamp remains illuminated, switch the engine off immediately. You can diagnose this fault with the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Cooling System Warning Light Meaning
The engine temperature warning lamp illuminates when the engine's temperature is too high.
The instrument panel also displays a warning message 'Check Coolant Level'
Stop the vehicle as soon as safety permits. You can check engine & transmission temperatures & diagnose faults with the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Cooling System Warning Light Meaning
The engine temperature warning lamp illuminates when the engine's temperature is too high.
The instrument panel also displays a warning message 'Check Coolant Level'
Stop the vehicle as soon as safety permits. You can check engine & transmission temperatures & diagnose faults with the iCarsoft POR V1.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Battery System Warning Light Meaning
The 12V battery charge warning lamp illuminates, as a bulb check, when the vehicle's ignition is switched on.
The lamp extinguishes when the engine is started.
If the lamp remains on or illuminates while driving, there is a fault with the battery charging system. The instrument panel displays a warning message.
Porsche 991 911 Genuine/True Mileage KM Verification Check Tool
If you are suspicious about the mileage showing on the dashboard of your Porsche 991, you can verify the mileage from the ECU of the vehicle by using the tool shown below.
Generally, if the mileage has been tampered with it will be changed in the instrument cluster and not the ECU. The ECU keeps its own record of the mileage which is not changed if the instrument cluster mileage is changed.
Use the iCarsoft POR V3.0 to find the genuine mileage in your Porsche 991. The tool is in stock with same day dispatch & worldwide delivery.
You will generally be able to see this data by selecting the engine system, then viewing the live data, and looking for the total mileage or similar wording. Watch the tool doing a mileage check verification on an Porsche.
Porsche 991 911 Oil Change Now Message Reset Tool
There is a specific service schedule for your Porsche 991. When the oil service or inspection needs to be carried out, you will see this message when starting the vehicle, and also turning off the vehicle.
To reset the Oil Change Now message on your Porsche 991, we recomend using the iCarsoft POR V3.0.
Watch our video of this tool completing the oil service message reset in a Porsche
Although the steps & messages in the video may differ, the tool has the ability to do the reset no matter which Porsche vehicle.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 Electronic Throttle Calibration Tool
You can calibrate the Electronic Throttle system (ETC) on your Porsche 991 by using the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 BMS New Battery Registration Tool
If you are replacing the battery in your Porsche 991 you will need to register the battery to your specifc vehicle. (BMS) You can register the new battery by using the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
If you require clarification that this tool can carry out this specific function on your vehicle, please email your vehicle VIN number and model year to enquiries@diagnostic-world.com
Porsche 991 911 Electronic Parking Brake EPB Tool
You can open & close the brake calipers, and calibrate the Electronic parking brake system (EPB) on your Porsche 991 by using the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
If you require clarification that this tool can carry out this specific function on your vehicle, please email your vehicle VIN number and model year to enquiries@diagnostic-world.com
Porsche 991 911 Steering Angle Sensor Calibration Tool
You can calibrate the steering angle sensor system in your Porsche 991 by using the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
Porsche 991 911 ABS Brake Bleeding
If you are changing the brake fluid you will need to bleed the system. You can bleed the braking system of the Porsche 991 with the iCarsoft POR V3.0.
The tool is in stock with same day dispatch & worldwide delivery.
1. Does that tool have the capability for the system/warning light you are trying to reset? So for example, lets say you have an ABS warning light on your dashbaord. You need to make sure you are buying a scan tool that has ABS capabilities and will actually allow you to communicate with the ABS system.
2. Assuming you do have the correct scan tool for the job, the next thing to look at is why the tool isnt turning off the warning light. When you attempt to reset the fault codes using the scan tool, it is communicating with the ECU, and asking the ECU to turn the light off.
If the light does not turn off, it means that the ECU has refused the request, and that it is not happy that the problem has been fixed. In other words the problem is still present, and if you think you have physically fixed the issue, you might need to go over everything again, checking connections, wiring etc.
It can be a misconception that these tools are a kind of magic pill, and that the tool can just reset a warning light without taking any action to fix the fault. This is not correct, in 99% of cases, you need to physically fix the fautl before the warning light in your Porsche 991 911 can be turned off. The rare situations where the warning light will turn off without any physical fix is where a sporadic or intermittant fault has occured.
