P073B stuck in gear 6
OBD2 Error Codes

P073B stuck in gear 6

26.05.2022 /

P073B stuck in gear 6

OBD-II DTC Datasheet

Stuck in gear 6

What does this mean?

This is a generic transmission diagnostic trouble code (DTC) and is commonly applied to OBD-II vehicles equipped with an automatic transmission. This may include but is not limited to Volkswagen, Audi, Nissan, Mazda, Ford, etc. Despite the general nature, the exact repair steps may vary depending on the model year, make, model and transmission configuration. Oddly enough, this code is more common on VW and Audi vehicles.

When we drive our vehicles, numerous modules and computers monitor and regulate a huge number of components and systems to make the vehicle run smoothly and efficiently. Among these components and systems, you have an automatic transmission (A / T).

In an automatic transmission alone, there are countless moving parts, systems, components, etc. to keep the transmission in the correct gear as required by the driver. The other important part of all this is the TCM (Powertrain Control Module), its main function is to control, adjust and correlate various values, speeds, driver actions, etc., as well as effectively switch the car for you! Given the sheer number of possibilities here, you'll want to get started and most likely stick to the basics here.

Chances are, if you are looking for this code, your car is not going anywhere fast (if not anywhere at all!). If you are stuck in gear or neutral, it would be a good idea not to drive or try to do so until the problem has been corrected. Let's say you are stuck in second gear trying to pick up speed on the highway, perhaps you are accelerating to 60 km / h. However, your engine will work very hard to maintain your desired speed. In such cases, engine damage is very likely.

The ECM (Engine Control Module) will illuminate CEL (Check Engine Light) and will set a P073B code when it detects that the automatic transmission is stuck in sixth gear.

Automatic transmission gear indicator: P073B stuck in gear 6

What is the severity of this DTC?

I would say moderately tall. These types of codes should be started immediately. Of course, the car can even drive down the street, but you will need to get it repaired before any further damage occurs. You can literally cost yourself several thousand dollars if you neglect it or ignore the symptoms for too long. Automatic transmissions are extremely complex and require proper care to ensure trouble-free operation.

What are some of the symptoms of the code?

Symptoms of a P073B trouble code may include:

  • Abnormal vehicle speeds
  • Low power
  • Abnormal engine noises
  • Reduced throttle response
  • Limited vehicle speed
  • ATF leak (automatic transmission fluid) (red fluid under the vehicle)

What are some of the common causes for the code?

Reasons for this P073B code may include:

  • Clogged transmission hydraulics
  • Low ATF
  • Dirty ATF
  • Wrong ATF
  • Shift solenoid problem
  • TCM problem
  • Wiring problem (i.e. chafing, melting, short, open, etc.)
  • Connector problem (e.g. melting, broken tabs, corroded pins, etc.)

What are some steps to troubleshoot the P073B?

Basic step # 1

Check the integrity of your ATF (automatic transmission fluid). Using the dipstick (if equipped), check the automatic transmission level while the vehicle is moving and parked. This procedure varies considerably between manufacturers. However, this information can usually be found fairly easily in the service manual on the dashboard, or sometimes even printed on the dipstick itself! Make sure the liquid is clean and free of debris. If you do not remember that you have ever provided a transfer service, it would be a good idea to check our records and service your transfer accordingly. You might be surprised how dirty ATF can affect the performance of your transmission.

Tip: Always check the ATF level on a level surface to get an accurate reading. Be sure to use the fluid recommended by the manufacturer.

Basic step # 2

Are there leaks? If you have low fluid levels, it is probably going somewhere. Check the driveway for any traces of oil stains or puddles. Who knows, maybe this is your problem. This is a good idea anyway.

Basic step # 3

Check your TCM (transmission control module) for damage. If it is located on the transmission itself or anywhere else where it may be exposed to elements, look for any signs of water ingress. It could definitely cause such a problem, among possible others. Any sign of corrosion on the case or connectors is also a good sign of a problem.

Basic step # 4

If everything is still being checked, depending on the capabilities of your OBD2 scanner, you can track the position of the gear and check if it works. This makes it easy to tell if your transmission is shifting or not by simple handling. Have you put it on the floor and does it accelerate painfully slowly? He's probably stuck in high gear (4,5,6,7). Can you accelerate fast, but the speed of the car will never be as fast as you would like? He's probably stuck in low gear (1,2,3).

Related DTC discussions

  • 2011 Tiguan DSG - P073B MalfunctionDear All, I am currently facing a handling problem for my 2011 Tiguan (7-speed DSG). Tiguan naturally behaves in a cold state. But after some trip (sometimes about 17-30 km) the transmission indicator flashes and driving problems arise. Moreover, if I stop the car in this state, t ... 

Need more help with a P073B code?

If you still need help with DTC P073B, post a question in the comments below this article.

NOTE. This information is provided for informational purposes only. It is not intended to be used as a repair recommendation and we are not responsible for any action you take on any vehicle. All information on this site is protected by copyright.

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