Axx
Toyota Motor Corporation's A family is a family of automatic FWD/RWD/4WD/AWD transmissions built by Aisin-Warner. They share much in common with Volvo's AW7* and Aisin-Warner's 03-71* transmissions, which are found in Suzukis, Mitsubishis, and other Asian vehicles.
The codes are divided into three sections
The letter A = Aisin-Warner Automatic.
Two or three digits.
Older transmissions have two digits.
The first digit represents the generation (not the number of gears, see A10 vs A20 and A30 vs A40 vs A40D).
The last digit represents the particular application.
Newer transmission have three digits.
The first digit represents the generation. Note: the sequence is 1,2,...,9,A,B with A and B being treated as digits.
The second digit represents the number of gears.
The last digit represents the particular application.
Letters representing particular features:
D = Separates 3-speed A4x series from 4-speed A4xD series
E = Electronic control
F = Four wheel drive
H = AWD Transverse mount engine
L = Lock-up torque converter
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