Originally Posted by ILUVMILS

The above statement is a very common mis-understanding concerning the 722.6 transmission.

Once the issue that caused “limp mode” is resolved, normal transmission function is restored, whether or not the fault codes are erased.

Let’s use a faulty speed sensor in the conductor plate as an example. If a momentary fault occurs a trouble code is stored and the transmission will default to protection, or “limp” mode. The transmission will have limited function for the remainder of the key cycle, even if the “glitch” is momentary, which they often are. If the key is cycled and the fault code is still “CURRENT” the transmission will remain in protection mode.

If however, the fault is no longer current at the next key cycle, the transmission will resume normal function and the fault code will now be “STORED”.