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The AODE name was used from 1991 to 1992. The 4R70W (basically an AODE) was introduced in 1993 behind the 4.6L dual overhead cam (DOHC) V-8 only in the new Lincoln Mark VIII. It also appeared in some F-Series trucks that same year.
The AODE (electronically controlled AOD) arrived in 1991 to merge engine and transmission functions for better performance and fuel economy. The AODE and 4R70W transmissions were all-new AOD cases designed for electronic interaction with engine controls.
The AODE and 4R70W are essentially the same AOD-based transmission. This is 1997 4R70W with a speedometer drive and output shaft speed sensor. Visible here is the manual shift lever for a column shift. Missing is the backup light/neutral safety switch at the manual shift shaft.
This is the backup light/neutral safety switch on a 4R70W transmission. Just above this switch is the output shaft speed sensor. It works hand in hand with the PCM to unify engine and transmission cohesiveness.
The output-shaft speed sensor and plug are located on the driver’s side of an AODE/4R70W. The multiplex plug to the left is for the backup light/neutral safety switch on the driver’s side of the transmission.
On the AODE/4R70W’s passenger side are the shift solenoid and converter lockup multiplex plug that ties the transmission to the PCM. This connection eliminates the need for a TV cable and mechanical shift modulation.

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