No obvious problems with the headlights on high or low beam, and the cornering lights work as they should. Silly Wabbit. Rick Mather. precollision system malfunction Reply With Quote 02-07-2022, 12:14 PM 11-22-2020 09:15 PM: Feedback Buttons provided by Advanced Post Thanks / Like Tpms or tire pressure monitoring system, alerts the driver when one or more tires falls below the acceptable air pressure in the tire, for instance if all y From https://www. Causes of the BMW Level Control System Malfunction. Nov 22, 2020 · 11-22-2020, 02:02 AM only acc. Feb 20, 2022 · This will turn the pre-collision system on and off. 9-14. A defective Master brake Cylinder However, it might malfunction your entire system if the hinder windshield is too dark. Feb 9, 2022 · 4. 6 zetec - Engine systems failure - transmission malfunction ford focus 2007 1. ” So, what could cause a Toyota headlight system to malfunction? A headlight is burning out – the headlight system will warn you if a headlight is about to burn out. Plug connections were dry, and the fuse was not blown. The dealer can scan it and quickly tell you what is going on. The proposed system utilizes an additional embedded system to monitor the real-time Oct 8, 2022 · 2017 RAV4: My battery went dead and afterwards I got similar pre-collision, lane departure, blind spot and AWD malfunctions on the display. 0 Sport Nav + Dec 21, 2022 · How to reset the Ford C-Max engine malfunction warning light How to reset the Ford C-Max engine malfunction warning light. If the light turned off, it was probably a false alarm, and your Toyota hybrid system is fine. Nov 28, 2023 · To reset the emergency call system on a BMW, follow Step 3: Resetting the Emergency Call System. The phrase "pacing system malfunction" includes problems that might arise from any of the components of the system. Consult your owner’s manual to see which fuse corresponds to the hybrid control system. Console warning says 'Smart Key System Malfunction' see owners manual. 0/TIS Techstream/Techstream Lite can effectively reset the system. To reset the system, do the following: Turn the ignition switch to the off position. Thanks for letting me work with you. " After driving for a little I turn the car off and turn it back on and everything reset by it self and won't give me any problem until the car is not in use for few hours or next day, and everything start all over again! is these related to a low battery or a bad battery? Apr 8, 2024 · The Subaru Eyesight system can be reset through the multi-control buttons and the LCD screen, which will also refresh it and get it to work correctly. By holding down the volume button for 30 seconds, it can be done. One of the primary causes of the Level Control System Malfunction is a faulty rear height level sensor. Disconnect the Battery: In some cases, disconnecting the battery and reconnecting it can resolve the TPMS malfunction. This crucial step resolves any malfunction in the system, ensuring the safety of drivers and passengers. But what does this actually mean? Engine system malfunction message highlights. This may reset the system and clear any temporary issues. I called BMW dealership and they said TPMS are same on both 328i and 428i***8230;. Feedback Buttons provided by Advanced Post Oct 26, 2013 · It seems to have temporarily or permanently lost its mind from either the low-voltage start attempt or the ensuing jump-start. Excellent. When the tire pressure warning light illuminates and a warning message appears, immediately check air pressure of all tires and adjust to the specified pressure. Aug 29, 2023 · If you have checked the sensor and there are no obstructions, you may need to reset the system. 01-27-2012, 02:41 PM #4. Reset TMPS. Some common symptoms of BMS malfunctions include: Battery Management System Malfunction warning on the instrument cluster Update: Apologies for the weak audio. A car battery is responsible for managing a lot of electronics on your Audi, if the Battery voltage is low it can cause a lot of electronics to malfunction, including the EPB system. To remove the alert from the screen, you need to reset the thermostat. justanswer. On the other hand, with such a rudimentary system they might not want to risk getting rear-ended. 6 NB; 2004 1. Not a low tire pressure warning, but a system malfunction. While some models require simply pressing a combination of buttons, others might need you to remove the thermostat from the wall and momentarily disconnect the power to reset it. The symptoms of a faulty ECU are check engine light , loss of spark, Intermittent starting problems, and overheating ECU. Has your BMW center checked the system as soon as possible? Message: Level control system malfunction. Why does Smart Brake System Malfunction? There is a wide range of reasons the Mazda smart brake system malfunction warning message will come up on your car’s instrument cluster. Sep 9, 2011 · ford focus 2007 1. Understanding the common causes of ICS failure and the procedure for system reset is vital to optimize performance and ensure optimal road protection. If you ever need to reset a Carrier thermostat, there are multiple ways to do it depending on the model. Sometimes, the system may have been reset improperly, which can lead to the system failing to reset correctly. The voltage (+BM) is monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the ETCS and cuts off the current to the throttle actuator. Jan 30, 2021 · So, the other day ( Friday ) I took the RAV4 back to the dealership. Let’s explore the most common ones: 1. According to the manual for Alarm 22 ( , , 25): Cause - This alarm implies decreases in the voltage of the backup battery for the absolute position data detection circuit of the control card. Oct 11, 2023 · Reconfigure Settings: After the reset is complete, you’ll need to reconfigure your thermostat settings. Is It Safe To Reset The Bmw Sos Call System? Yes, it is safe to reset the BMW SOS call system. Just repairing the system can cost hundreds of dollars. Jun 11, 2014 · I drove around about 60 miles, tried reset about 5 times and always getting the same message "Tire Pressure Monitor Malfunction: System unable to detect pressure loss". Red Lights. Reset, Reboot, Resolve: Post any software update or tweak, always remember to reboot and reset the system. How Do You Test the Toyota Pre-Collision System? If you feel that your Toyota needs to be tested, contact your dealership or mechanic to see if there are any tests that they can do on the Pre-Collision System. Mar 7, 2014 · Tech came out two weeks ago and checked the codes. I keep getting the message TANK SYSTEM MALFUNCTION. On average, a headlight Sep 15, 2011 · 22 FEEDBACK SYSTEM MALFUNCTION (1,0,&0043) deanr, it could be a damage servo motor amplifier. Fix The Pre-Collision System. Nov 9, 2022 · Carry out the system reset procedure. The DTC P204F cannot be cleared until the DCU codes have been repaired, cleared and the SCR related memory has been reset with the below procedure. Jan 25, 2023 · If you have 22 Feedback System Malfunction ( 1, 0, &0043), by configuring the machine in semi-closed loop you would be able to test the axis without being attached to the machine making 2016~2023 CX-9 Keyless system malfunction and then a bunch of others. Jan 21, 2022 · Carrier Infinity Touch Thermostat Reset System Malfunction. I and a After the system boots, the following alarm appears: “22 Feedback System Malfunction (5,0,&0025)”. Add in the labor costs and you may end up paying more than $500 to fix your blind spot monitor system. Diagnostic code C-1433 Steering angle sensor internal circuit. Sep 18, 2014 · Basically there is a wire that runs back to the battery cable, that wire is supposed to have a resistance of 2 - 3 ohms. In this case, to reset the system malfunction, call a technician to fix the system. T. In order to reset your car’s safety restraint, do the following: Option 1: Engage reset with the ignition switch. With the ignition on, fully depress the brake pedal 5 times in a row, verifying the pedal has fully returned between presses; If the reset is successful, the malfunction light will turn off; Turn the ignition off and then back on to complete the process Aug 4, 2017 · Q7 MKII Discussion - Drive system: malfunction! Please contact Service. We’d advise that you should avoid tinted windshields. If there’s an ICS fault, using a diagnostic tool like Techstream 2. Please Help me. The VIN # will populate in the window, select the correct vehicle depending on what you are working on from the drop down boxes. Command the Reductant System Malfunction Service Bay Test On with a scan tool. Test the System: After reconfiguring, test your HVAC system to ensure it’s functioning correctly. Water or accidental damage to ICS sensors, damaged wiring harnesses, blocked sensors, and wave interference from vehicle detectors are some of the most common causes of ICS malfunction in Toyota Camry. Reset procedures. 8 NB "Arctic"; 2019 2. Red lights and beeps indicate a system malfunction. This article examines the Mazda Advanced Keyless Entry System, addresses the problem of the keyless system malfunction, and offers possible solutions. Check the fuse for your hybrid system. It never goes off. Have your vehicle checked as soon as possible. They water tested the vehicle and found no water from where the TCB sits. ). The system can also be disabled through the same menu, or by pressing and holding the EyeSight button on the steering wheel. (not low tire pressure ) message. you then have to reset the code, I did this through BMWhap App. Sep 1, 2015 · What set off the SCBS malfunction was a malfunction in the tire pressure warning system. 9 volts and 95 % charge when the vehicle is not running. Audi Battery’s low voltage can be caused by a bad battery, which I recommend you change every 3-5 years, or the Battery lost charge due to lack of use, or you For instance, you will need to reset your iDrive system if your BMW 740i has the BMW Emergency Call Malfunction. . Feb 26, 2024 · The BMW Emergency Call system is an advanced safety feature equipped in most modern BMW vehicles. Hit the reset button and it goes away, then keeps coming back at random intervals until speed drops. Contact Workshop - I've had my brand new 2010 Audi A4 Avant Quattro for less than a month and it's already having issues. %PDF-1. Anyway, when I reinstalled the seat I got the “Driver Restraint System Malfunction” message. - I had this warning come up while driving today. I checked the charging system, it shows 13. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. We have a MAZAK 250QT, Mazatrol640t with the alarm 22 feedback system malfunction (1,0,002F). Performed EFQT test passed. We would like to show you a description here but the site won’t allow us. He reset the system andthe system works like it should (3 stages working correctly). If your Ford C-Max has an engine malfunction warning light, there are a few things you can do to reset it. No problems after a year of ownership, except for a "headlamp system malfunction" message that pops up only above 65 mph. The Reductant System Malfunction Service Bay Test should start and run at idle speed for up to 20 minutes. Activated by either pressing an SOS button or automatically in the event of an airbag deployment, it uses a combination of cellular and GPS technology to quickly contact emergency services. A new battery didn’t help to clear the warnings. S48 = Seat Belt Buckle Contact, Passenger on X12*2B Connector, Pins 2 & 3 to A11*1B, Pins 22 & Ground Dec 4, 2022 · Your Lexus RX 350 has been reliable all year long until one day, you are taking a long trip on what seems like a fairly clear road and park for a while. Have your vehicle Now that we have identified the common causes of a TPMS malfunction, let’s discuss how to resolve and reset this issue in your Audi. CONTACT WORKSHOP on the display when I start the car and the fuel gauge shows empty Mar 26, 2022 · How to clear off the sos call system malfunction on a BMW Jan 3, 2022 · There is a lot involved in your Crash Safety Module (A11) with respect to your passenger's SRS. Jul 1, 2014 · Reasons for this can include: TPM is being reset; temporary interference due to systems or devices that use the same radio frequency; and system malfunction. 2. Drive the vehicle straight ahead for 5 seconds or more at a speed of approximately 22 mph (35 km/h) or more to initialize the system. Apr 19, 2022 · When the headlight system malfunctions, a message will appear on the dashboard. If you encounter a driver restraint system malfunction, take proactive steps to address the issue promptly, prioritizing the safety of yourself and your How do I reset system malfunction on evolution thermostat, Bryant evolution thermostat-5+ years old, 12. Skaletr; Sep 27, 2023; CX-9 General; Replies 9 Views 3K. If you’re experiencing a malfunction with the emergency call system in your BMW, you may need to reset it in order to restore functionality. This tip might help you reset Jan 10, 2023 · Reporting back on my service appointment to address the call system malfunction. Mar 22, 2020 · So I had to replace a blown out tire on my 2018 touring g crv and it is a different brand of tire than the original factory tires. He also performed electrical checks on inducer, limit(s) and a few other things. There are several potential causes for the Level Control System Malfunction in BMW vehicles. The TCB was not communicating. If the reset process fails, try the procedure again, making sure to follow the steps precisely. Read also >> Audi Safety System Malfunction (Here Is What To Do) Symptoms of BMS Malfunction. Aug 12, 2021 · pre-collision system malfunction - visit dealer. There was nothing wrong with the pressures themselves, but the TP warning tripped for some unknown reason, which triggered the SCBS malfunction and disabled the forward SCBS. If the light is still on, move to the next step. Its description included SRS code reading and resetting. Service Due. This procedure is designed to help reset the service safety restraint system in a Toyota RAV4. First, check the oil level and quality. Aug 18, 2023 · So, when you brake, the system will reinforce your effort to avoid a collision or at least reduce the severity of it. Any way to reset the computer? A dead battery can kill a sensor? Any suggestions appreciated. 0 R-D. com/ythiJustAnswer Customer: Received a system malfunction code on a Carrier Infinity System: System Malfunction 82- Thermal Lock Step 4: Find the option that allows for the reset of the parking brake system. Sep 22, 2023 · 5. Feb 6, 2017 · I have the SRS light on the instrument display. You may hold this button to adjust any of the settings of the pre-collision system. Nov 3, 2020 · Well, all my efforts failed, so I took the truck to a dealer. The servo amplifier is flashing with the 2F code. May 14, 2022 · If you try to reset your Toyota blind spot monitor system and it doesn’t fix the problem, it could be an expensive repair. If you get it again, make sure filter is clean and indoor motor is running. Oct 11, 2023. replace the amplifier. The tech's notes: With scan tool commanded reductant heaters on and off, all 3 heaters operate as designed. Hi I took delivery of a mk8 L2h2 in 1st sept 2021 Had adblue malfunction come up after 1800 miles also electrical wiring problem with adblue system seemed to be intermittent took to the dealers had the van for 3 days checked all of the wiring loom on adblue system and decided to change the adblue tank sorted week before came back again, now waiting for two new wiring looms to arrive at This article will discuss three possible reasons for ICS malfunction and how to reset or reprogram the system if necessary. Common reasons:issues with any engine sensor or other electronics-related problem; How to fix:read the codes to understand the issue Jul 14, 2022 · This is a good question, it would be silly just to beep and sail into the vehicle ahead since the car clearly has the ability to apply the brakes via automation (ATRACS). I pulled over shut off the engine and when I restarted the warning went away. Step 5: Follow any on-screen instructions that may appear, guiding you through the reset action. Dec 22, 2020 · I removed my Drivers seat to work on the dreaded “seat thump” many others have described in the 6 series. 3 %âăĎÓ 1 0 obj /CreationDate (D:20220401081720) /Producer (Arbortext Advanced Print Publisher 9. If your 2022 Toyota Camry uses an indirect system, the system must be reset using a magnet or scanning tool by either a dealer or one you have bought (Malfunction of urea SCR System). Here’s how you can reset the system: Battery Disconnection: If the 12-volt battery terminal has been disconnected and reconnected, the system needs to be initialized. A malfunction in your Toyota’s system might emanate from crimes in the system itself. A faulty control module for the drive system ; The Audi drive system consists of a control module and several motors that propel the various components in the May 4, 2022 · Turn the car back on. Dashboard Menu Reset: Service Emission System or the Service Exhaust System message is still displayed, a second Reductant System Malfunction Service Bay Test will be necessary 8. Tire pressure sensor malfunction: The temporary spare wheel is either in use or the system has detected a fault in the sensor that requires service. Basically you cut the wire and splice in a 2 ohm resistor. From what I've read, this is a pretty common issue and could go away on its own, could need whole TCU replaced, or might just need a replacement battery for something. Oct 15, 2020 · The ETCS (Electronic Throttle Control System) has a dedicated power supply circuit. Oct 4, 2022 · 2015 V60 3. Warning: If the system determines that a collision is likely, it issues warnings to the driver through visual and audible alerts. Dec 9, 2023 · What Causes A Bmw Sos System Failure? A BMW SOS system failure can be caused by a software glitch or a hardware malfunction. Wait at least 5 seconds. Mar 9, 2024 · However, ECU can malfunction due to damage, bad alternator or electrical system issues and cause the engine computer to receive the wrong data. Within a week or two, I get the message again. when machine ready on screen alarm 22 Feedback system malfunction. When the “Check Hybrid System” light comes on, it means your car’s warning system is detecting some sort of problem. It does not. 7. This is located under the hood or dashboard. 35 years experience, HVAC. Visit Your Dealer. 9. They disconnected the TCB, removed the battery and reset the telematics control unit. S. Jul 2, 2018 · When a vehicle has been involved in a collision and the Occupant Classification System Module (OCSM) has DTC B1650 stored in memory, the repair of the OCS system is to include the following procedures for the specified system: For rail-type OCS system, inspect the passenger side floor pan for damage and repair as necessary. This includes setting the desired temperature, system mode (heating, cooling, or auto), and any other preferences. 2019 X5 - Possible to reset or clear Emergency Call System Malfunction warning? We have a 2019 X5 and this just popped up. 5 volts when running and the main battery shows 12. I tested connection with encoder and spindle. Aug 10, 2023 · However, even cutting-edge technology can have its limitations. Drive System Malfunction Audi Car. Can I Reset The Bmw Sos System Without A Dealership Visit? Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Completing the Reset. Nov 1, 2023 · It means there’s a problem with your car’s hybrid system. Try Again. AWD system malfunction, 2WD mode engaged message highlights Oct 23, 2019 · My 2010 E550 4Matic recently started giving me the "auxiliary battery malfunction" warning right after start up. Tire pressure monitor malfunction: The system has detected a fault that requires service. com/ythiJustAnswer Customer from San Antonio, TX: How do I reset system malfunction on evolution thermostatPearl Wilson: Assistan Apr 19, 2017 · Tonight when I got home from work I noticed another message on the virtual cockpit: "Safety system: malfunction! See owner's manual". When I scanned it using OBDeleven I got the following errors: Trouble codes: P130A00 - Hide cylinder Intermittent Honda Sensing is a suite of advanced safety and driver-assistance technologies designed to ensure a safer and more comfortable driving experience. Keyless system malfunction message highlights Cause The absolute position detection system has detected an error(s) by cross-checking the absolute position of its detector and the internal coordinate data of the NC unit. Resetting the TPMS System. Dec 22, 2023 · Chassis Stabilization Malfunction! The car ride is very rough; The rear is bottomed out; Message: Level control system failure; Message: Level control – Ground clearance and driving comfort is reduced. Your Prius is equipped with a full hybrid system that uses a battery-powered electric motor and a gas-powered combustion engine that work together. If you have further questions, please let me know. Check if the previous Feb 27, 2021 · When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. Mar 16, 2023 · Here are some tips on what to do if the reset process for the Toyota Pre Collision System Malfunction fails: 1. That fixed the problem. Jul 11, 2021 · From https://www. Feb 17, 2024 · This sequence puts the Toyota computer into override reset mode. Sometimes it happens as I try to start the car and sometimes the car starts fine. Also has message SRS - Restraint system take to workshop and SOS - Phone. . 22. Jun 2, 2022 · This is a modern feature that has become standard for more and more models of the Japanese car manufacturer. If you have a Toyota or Lexus hybrid, and are having problems with the hybrid system, for example, you need a new battery pack. Jun 22, 2011 · Since the first week or two of ownership (bought it brand new a little over a year ago), I have gotten a TPMS System Malfunction warning. If the oil is low or dirty, topping it off or changing it may reset the light. You need to stop your engine first, of course. It will not affect the vehicle’s safety features. Performed reductant system leak test, no leaks present. Turn the ignition switch to the on position. If my answer has been polite, professional,and thorough, please click one of the ratings now. I have checked and cleaned both seat connections. The traditional pacing system is comprised of the pulse generator , also called the pacemaker, and the transvenous or epicardial lead or leads that connect the pulse generator to the heart. Sep 3, 2010 · Not really anything in particular to look at on your own; if one of the sensors malfunctions, it pretty much just shuts down all user feedback (the picture, the sounds, etc. Apr 17, 2024 · the system requires developing strategies and measures [9–11]. Sometimes, it might be more feasible to upgrade to a newer model with current tech. Nov 29, 2023 · "Collision warning system inactive. You need to visit a dealer or well-equipped independent BMW specialist shop, to have the module diagnosed, reset if possible or replaced if necessary. Avoid high cornering speeds. 1. I recently had a front right sensor go, and replaced it with one from another car with no issues whatsoever. The functions of the Carrier Infinity System thermostat include monitoring your air filter, humidifier pad, and UV lamps. Road test vehicle and performed reductant system malfunction warning test, test passed. Jul 31, 2023 · In the post below, we will explore the possible causes and symptoms of Audi’s drive system malfunction and discuss potential remedies for the issue. The kms on it is about 48838, and the maintenance personal realized it is a cracked purge valve system, and the purge flow is incorrect, causing the system to say that there is something wrong, but also shuts-off the AWD, and cruise. When the voltage becomes unstable, the ETCS itself becomes unstable. I have not found the location in the owner's manual where this particular warning message exists yet, but I anticipate the same useless info to be found there. 6 petrol zetec - Engine systems failure - transmission malfunction I've had this problem ever since I purchased the car (this year). After a few days I got a TPms system malfunction warning. Faulty Rear Height Level Sensor. 550/W Unicode) /Creator (Arbortext Advanced Print Sep 29, 2023 · The Fix: While some solutions involve deactivating the system or upgrading the hardware, it's essential to weigh the costs and benefits. Check this thread to reset the PCS yourself via techstream on a 2020+. been a week now with that annoying bing sound and light GONE!!! If your 2022 Toyota Camry uses a direct system, resetting the tire pressure sensors may be as simple as pushing a reset button on the dash or following a menu as indicated in your owner's manual. I check the air, make sure they're all in spec, then reset using the MMI. Did not see him test anything with the pressure switch tubes - he did disconnect and reconnect them. A malfunctioning BMS can manifest in various ways, depending on the specific issue affecting the system. Former owner of 2007 2. Nov 24, 2020 · Current cars 1971 Triumph GT6, 2001 Ford Puma 1. Fix may work once or twice but if the warning message returns, there’s a high chance you’ll need to have your battery r Feb 28, 2022 · Looking for some assistance. Oct 15, 2023 · Main question is, is there any way for me to clear the "Hybrid System Malfunction Please Visit Dealer" message? TLDR: Got a bad oil filter (defect in the gasket) dumped all the oil when turning on the engine, immediately killed the car, replaced oil and filter, now message won't go away. Aug 26, 2021 · A malfunction in tire pressure warning system has been detected The dealer told me on the first time they fixed the problem by replacing the ABS system and the same problem occur again for the second time, and again they told they will order the same parts to installmakes no sense at all. I bought the MB Diagnostic Scanner tool and code reader, icarsoft i980. When I took it to the dealer they said it is because I have a different tire than the others on the car. Dec 9, 2023 · Dealing with a driver restraint system malfunction in your BMW requires thorough inspection, diagnosis, and potentially professional assistance to ensure the safety and integrity of the system. These innovative features include Adaptive Cruise Control (ACC), Collision Mitigation Braking System (CMBS), Lane Keeping Assist System (LKAS), and Road Departure Mitigation System (RDM). Sep 22, 2018 Member: #267058 Messages: 10,651 Gender: Try to reset it yourself with a code reader. The module must be coded to the car so this is not a DIY repair. The message will say, “Headlight System Malfunction. Action Require Mazak Technical Center or Technology Center to re-set the absolute position data. This paper proposes a system for detecting system malfunctions caused by errors in embedded software in embedded systems that require high levels of safety and reliability. 0 NC Sport; 2004 1. When any of these parts need maintenance, an alert will appear on the thermostat. Nov 30, 2017 · Hi gus, I have a lathe QT250 mazatrol 640T. REPAIR PROCEDURE: 1. Pre-Collision Preparation: If the driver fails to respond and the system determines that a collision is imminent, it can activate pre-collision preparation measures, such as pre-charging the brakes and adjusting seat belt tension. Only to start your car again and meet an "AWD System Malfunction, 2WD Mode Engaged" message. The system might prompt you for confirmation before proceeding with the reset The reset process is relatively easy compared to fixing some other problems within the safety restraint system. Apr 22, 2010 · A4 (B8 Platform) Discussion - Tank System Malfunction. onthebumper. It can prevent the engine from starting up. 2010. I hope to have a solution to post but want to put more miles on her before I post. Mileage is at 62000. PACING SYSTEM COMPONENTS. " "Pedestrian warning malfunction. Jul 20, 2022 · It can be really frustrating when that little light on your Mazda's dash comes on, indicating an "Engine System Malfunction". May 19, 2017 · S4 (B9 Platform) Discussion - Drive System Malfunction - Auto Start Stop - So yesterday I was heading to an audi club social gathering, and crossing over the 300 miles total mark, and I get a audi pre sense warning, then a yellow exclamation point and message that says Drive System Malfunction. It might be labeled as “Reset Parking Brake” or a similar designation within the menu. mv ml qs lt cn kf oo fg qz bq