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Home >> Ford >> 2009 >> Focus L4-2.0L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Description and Operation >> 4F27E >> Transaxle Electronic Control System >> Overdrive (O/D) Switch
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Overdrive (O/D) Switch




Transaxle Electronic Control System

Overdrive (O/D) Switch





The Overdrive (O/D) switch transmits a signal to the PCM to select or suppress 4th gear in selector lever position D.

The signal of the O/D switch is used for the following functions:

- as an input signal to convey the driver's intent to the PCM.
- to display the driver's intent with the O/D indicator in the Instrument Cluster (IC).

No substitute signal is available for the O/D switch. If it should fail, it is always possible to shift into 4th gear in manual selector lever position D.

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