Q: what does trans.failsafe prog mean

asked by on

Im reveiving a error message saying Trans.failsafe prog.
My car has an automatic transmission.

It means that the ECU (Electronic Control Unit) has detected a problem in the transmission itself or in one of the devices or sensors that controls it. The ECU then substitutes whatever information its not getting with a fixed value so the transmission can continue to operate in spite of the failure. You may notice the car behaves differently, or you may not notice any problem at all depending on where the failure lies. When this occures, the ECU stores codes for the failed components that can be read by a technician with the appropriate scanner. In that way the technician knows where to go with the diagnostic process. You can contact Your Mechanic to have a technician come to your home or office to diagnose your transmission problem and let you know what can be done about it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. what does trans.failsafe prog mean

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I had to change output the speed sensor, but my car still drive in 5 high. What do I need to do?

Hi there. Since you have replaced the speed sensor and your vehicle is still giving you the engine light code P0720 for the speed sensor circuit malfunction, then you would need to check the circuits from the speed sensor to...

Q: How do I find and identify the ECM module in a 2001 Buick LeSabre?

Hello. To answer your location question, the ECM is behind the fuse and relay block of electronics under the passenger side of the dash (behind the glove box). The ECM is behind the other electronics, mounted flat against the firewall,...

Q: 2015 BMW 750 Lacks Power

There are many potential causes for your concern. If the check engine light is on, (I'm guessing it is) the first thing you'll want to do is retrieve the diagnostic trouble codes. These codes serve as as starting point for...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.