Periodically, the automatic transmission lever is not removed from the parking lot. I have Daewoo Matiz. What to do? (Maksim)
Hello Maxim. Your problem is familiar to many car owners with automatic transmissions. We will try to sort out this error.
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What to do?
When you press the brake or press the selector, the console should make a faint sound. If you cannot get the car out of the parking position, check if the rear brake lights are on. If not, then you need to check if the STOP fuse is good. As a rule, it is located in the cabin.
Switch the automatic transmission selector to the Drive position
If the fuse is in working condition, then the brake signal switch should be diagnosed. It happens that the contacts of the device burn out, as a result of which the brake lights do not function. This same switch is designed to supply voltage to the stoplight circuit. Perhaps the connector just flew off it and needs to be put back in place.
If everything is in order with the connector, then it is necessary to dismantle the switch and replace it. Or you can take it apart and clean it. It would also be a good idea to check the rear brake lights. Perhaps they burned out.
You should also diagnose the gearbox control cable - there are marks on it. It is possible that these marks have gone astray and need to be adjusted according to the car manufacturer's instructions.
If these manipulations did not help, then you need to remove and check the operation of the gear lever sensor. It may be out of order or not working correctly, which may be the cause of your problem. Replacing will help solve it.
If all this does not help, then it is necessary to diagnose the gearbox. To do this, you should purchase a special diagnostic tester and connect it to the on-board computer and laptop. You need to read all the trouble codes and decipher them in order to understand what the problem is.
Video "The principle of operation and control of a machine with automatic transmission"
Basic information on how to drive a car with an "automatic" is presented in the video.
You get into the car, start the engine, and with the usual movement prepare to switch the automatic transmission from position P (parking) to D (drive) - but the lever refuses to be translated.
Quite often, the question of how to unlock the automatic transmission also arises in another version - the engine does not start, the car needs to be rolled or towed or, and the wheels are locked.
Of course, you can call for transportation of your car to a service station, but this is not always possible, especially if your car is in a garage or parking lot.
What to do in such cases to unlock the automatic gearbox selector?
Do not try to make more effort, or resort to the help of volunteers - look for the hidden automatic transmission unlock button, on many cars, especially Japanese brands, it is located near the shift selector. If you find it - great, press and remove the automatic transmission from the parking lot. No - call our roadside assistance dispatcher and he will advise you.
If you fail to unlock the automatic transmission yourself, Uncle Charlie technical assistance specialists will come to you and help you remove the automatic transmission of your car from the parking lot. We know how to remove BMW, Mercedes, Volkswagen (including Tuareg), and cars of other brands from the parking lot.
How to remove automatic transmission from parking?
Below we have given the advice of our auto mechanics and even a short video on removing the automatic transmission of various cars from the parking lot. In most cases, the general algorithm for self-unlocking the automatic transmission selector is as follows - it is necessary to disassemble the console around the automatic transmission selector and find the safety lever that blocks the automatic transmission from switching from parking (P - parking) to any other position.
- Let's take a closer look at how to do this using the example of Skoda Octavia, emergency removal from parking:
- Open the storage compartment in the center console or the front ashtray.
- Pull the trim up on the left and right sides.
- Raise the back cover.
- Press the yellow plastic tab with your finger and at the same time move the automatic transmission selector lever to the N (neutral) position. (see illustration)
How to park a Mercedes
If the diagram and illustrations did not help, watch the video - the process of removing the Mercedes W211 from the parking lot is shown, the general algorithm remains unchanged.
All! The car rolls and is ready for transportation or loading onto a tow truck. Attention! When towing by another vehicle, do not forget to read the conditions for towing a vehicle with automatic transmission in the manufacturer's instructions.
Instructions for self-unlocking automatic transmissions of cars of various brands:
If you couldn’t remove the box from the parking lot on your own, call our Uncle Charlie roadside assistance service - we’ll tell you, we’ll come, we’ll help!
Modern cars are easy to drive thanks to the automatic transmission transmission. So what is so special about this automatic transmission, consider the device, the principle of operation and a common problem for a beginner - it is not possible to lever from parking.
What is automatic parking in a box?
Like a manual gearbox, an automatic does the same job, only on its own. At the foot of the gearshift handle on the automatic gearbox there are the following designations:
- P - This is parking and starting the engine. It's called parking. It is used to immobilize the car after the car has been parked and has been set to the handbrake. we have already studied according to the schemes: parallel and perpendicular options.
- D - This is forward movement.
- R - This is reverse. Reverse, that is, movement in the opposite direction. It can only be turned on when the brake pedal has been fully depressed and the vehicle has stopped. If correct, it will turn on when reverse gear is engaged.
- N - This is the neutral position. In the neutral position, the engine does not transmit rotation to the automatic transmission. Used during long stops or to warm up the car.
- L - This is a low gear. It is used for slow movement, for example, they left the road, and it is impossible to go fast there. In fact, this is an analogue of the 1st speed of a manual gearbox.
automatic transmission: device
This device is a type of transmission that automatically selects the desired gear ratio suitable for the speed of movement.
- Hydraulic transformer housing.
- Driven wheel (turbine).
- Reactor wheel.
- Drive wheel (pump).
- Oil pump.
- Motor excitation windings.
- Torque converter lock-up clutch ().
- Damper.
- Torque converter housing.
- Gearbox housing.
- Friction discs of the blocking clutch.
- Clutch body.
- Planetary.
- Flange of a conducted shaft of a gear box.
- Crankcase pan.
- Hydraulic valves of the gear shift control system.
- valve box.
How to use an automatic transmission correctly?
Like any automatic system, automatic transmission requires careful handling. Proper operation of the automatic transmission consists of the following steps:
- Start the engine, warm it up, especially if it is cold outside, as the oil in the engine and in the automatic transmission thickens, which leads to strong friction of the mating parts. Find out, .
- Squeeze the brake pedal to the stop and set the gearshift lever to position D (drive).
- Remove the car from the handbrake and slowly release the brake lever. After that, the car will slowly start to move.
- We press on the gas pedal and as you pick up the speed set for each gear, the machine itself will begin to shift gears. Switching the machine is accompanied by small jolts. Perhaps, if there are malfunctions in the operation of the automatic transmission, then this is due to, which often has to be repaired in some makes and models of cars.
- When the speed decreases, such a gearbox begins to downshift itself.
Some automatic transmissions have W modes or the designation of snowflakes Snow. This means that in W mode, that is, the box is set to winter mode. In winter mode, the machine does not use the first gear, the car starts off from 2 or 3 gears. Because of this, the car slips less and downshifts only to avoid skidding at low speeds.
Important! To prevent the automatic transmission from breaking down, one very important rule must be observed: do not move the selector (lever) when the car is moving from position D to R or P. This rule should not be forgotten if the car is raised with a jack or lift and mode D is turned on to check the brakes on the stand.
You can only shift the automatic transmission selector after the car has come to a complete stop and the brake pedal is fully depressed.
It is forbidden to switch to the N-neutral position when the car is driving, so as not to create an emergency on the road, especially if it is icy. It is necessary to put it in neutral during long stops so that the automatic transmission cools down.
Overdrive Mode
The OVERDRIVE mode is an overdrive, when the engine is engaged with the automatic transmission, it is rigidly coupled by blocking the hydraulic transformer.
They put on OVERDRIVE when you have to drive at one speed in fourth gear for a long time. When this mode is turned on, the driver feels a slight push, as if it had shifted to 5th gear, but, in fact, it was the hydraulic transformer that was blocked.
OverDrive is activated by a button on the shift lever. It also turns off with a second press of the button. Also, the implementation of disabling this mode can be done by pressing the gas pedal all the way.
Kick Down Mode
If you press the gas pedal sharply to the floor on a car with automatic transmission, the kickdown mode is activated. On the machine, this mode is used for sharp acceleration, which is very convenient when overtaking or ahead of other vehicles.
In KICK DOWN mode, the box will only switch when the engine speed reaches maximum.
If you need to turn off the acceleration on the machine, then just take your foot off the gas pedal or ease the pressure on it.
Why is it not removed from parking in automatic transmission
The first step is to check if the brake lights (brake lights) are on at the back. If they don't light up, check the STOP fuse. The fuse is the most common cause of equipment failure, so you need to check from it, and this is also the easiest repair. The STOP fuse is located in the fuse box in the passenger compartment or under the hood.
If the fuse is good, there are no burnouts, then the brake light switch should be checked next. Contacts often oxidize and cause circuit breakage, causing brake lights not to light.
If the brake light switch is fully functional, then the next step is to check the automatic transmission control cable. It happens that the labels go astray and need to be reconfigured.
If the cable is working, then we check the switch selector (lever) sensor. If there are problems, it must be replaced.
If the sensor is normal, then we check the automatic transmission itself. The diagnostics of the automatic transmission is checked by a special scanner, when connected, an error code will appear on the screen of the connected laptop or phone, which must be decrypted.
An automatic box test until 1998 with an OBD-1 or OBD-2 scanner is carried out in the following order:
- Warm up the engine, drive at a speed above 20 km / h.
- Stay. Shut off the motor. Leave the ignition key in the lock.
- Turn on the ignition, but do not start the starter.
- Switch off the ignition.
- Put the selector in position D, using the emergency button. Enable also hold. In this case, Power does not need to be touched.
- Turn on the ignition.
- The selector is set to position 3 and turn off hold.
- We put the selector in position 2 and turn on hold.
- Set the selector to 1 position and turn off hold.
- Press the gas pedal 2/3, that is, more than half. Wait 4 seconds.
- Watching the Power indicator. When blinking slow, you need to read the errors. If Power blinks often, then there are no errors.
Automatic transmission text with a year of manufacture later than 1998:
- Turn on the ignition.
- Switch off the ignition.
- Turn on the ignition.
- Place the gear lever in position 1.
- Switch off the ignition.
- Turn on the ignition.
- Handle to position 2.
- Handle to position 1.
- Handle to position 2.
- Handle to position 3.
- Handle to position D.
Let's look at indicators.
Here are examples of errors:
11 break, short circuit in the circuit or jamming of the solenoid valve a
12 open circuit, short circuit or stuck solenoid valve b
13 open circuit, short circuit or sticking shift solenoid valve 3
14 open circuit, short circuit or stuck shift solenoid valve 2
15 open circuit, short circuit or sticking shift solenoid valve 1
21 open, short circuit in the atf temperature sensor circuit
22 open, short circuit in the air mass meter circuit
23 open, short circuit in the engine speed sensor circuit
24 open circuit, short circuit or stuck solenoid valve c
25 open, short circuit in the torque control signal circuit
31 open, short circuit in the throttle position sensor circuit
32 open, short circuit in the vehicle speed sensor 1 circuit
33 open, short circuit in the vehicle speed sensor 2 circuit
75 automatic transmission Incorrect switching sequence. Transmission diagnostics required.
79 Automatic transmission Automatic transmission overheating, automatic transmission diagnostics required.
81 Automatic Transmission Incorrect voltage in the 2-3 shift solenoid circuit; need for automatic transmission diagnostics.
82 automatic transmission Incorrect voltage in the 1-2 shift solenoid circuit; need for automatic transmission diagnostics.
83 Automatic transmission TCC solenoid circuit - high voltage at the solenoid when activated; need for automatic transmission diagnostics.
84 automatic transmission Incorrect voltage in the 3-2 shift solenoid circuit; need for automatic transmission diagnostics.
85 AT TCC solenoid jammed - AT diagnostics needed.
90 automatic transmission Incorrect voltage in the TCC solenoid circuit; need for automatic transmission diagnostics.
What not to do with automatic transmission
The device and principle of operation of the automatic box involves the following types of prohibited actions:
- The car should always be warmed up before driving. When working on a cold automatic transmission, the resource decreases, especially in severe frost, when the gear oil thickens. In order to choose the right oil for the transmission, it was compiled. You can move the selector to different positions with the brake pedal depressed. If you need to go urgently, then the gentle mode of operation of the automatic transmission in this case will be smooth starting and movement without jerks.
- Automatic transmission is a “soft” technical device that does not like crazy loads and jerks that are done by amateurs. When off-road, switch to low mode L.
- If a car with an automatic gearbox does not start, then you should not try to start it by towing. You can tow, but at a speed of no more than 40 km / h and at a distance of no more than 30 km. This is because the oil pump only works when the engine is running. And when towing, rotation is transmitted from the wheels and further through the box, so without oil supply, wear will be faster. It is better to use a tow truck if possible.
- If the car is with all-wheel drive and with an automatic transmission, then in the event of a breakdown such vehicles can only be transported on a tow truck or, if in tow, then with the cardan removed.
Using the handbrake with automatic transmission
Both manual and automatic vehicles must be equipped with a handbrake. On the mechanics, it often breaks down and drivers do not bother to repair. But, if the automatic transmission, and not the manual transmission, then the handbrake in the event of a breakdown must be repaired.
In the operating instructions for a car with a gun, it is recommended that after stopping the car, set the selector to the P (parking) position immediately before or after applying the handbrake. But, many drivers do not put on the handbrake, leaving only parking. But, it is better to install a handbrake, especially on a slope. Extra security won't hurt.
When the engine is running with the selector in the neutral position, it will not work to switch the lever to park, since the handbrake is not set. This is good safety for a forgetful or negligent driver.
Useful videos about the operation of an automatic transmission
There are automatic transmissions with tiptronic, that is, it is possible to transfer control to manual mode + and -.
