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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1409 (Automatic Transmission - AISIN Aw21) >> Diagnostic Tests >> Diagnostics >> Self Diagnosis Function >> Fail-Safe

Self Diagnosis Function: Fail-Safe

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

With the fail-safe function, if any malfunction should occur in the transaxle system, the TCM will output a control signal, and control will be carried out to make traveling a minimum distance possible. If all shift solenoids malfunction, the TCM will cancel the output of control signals to the solenoids. If this happens, the automatic transmission gear shifting will be controlled by transmission fluid pressure circuits only and the gears will shift as shown in the following table.

Selector Lever Position Gear Position
R Reverse
D 3rd or 5th gear
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