Toyota
Ford Kuga
 Service Manual
Automatic Transmission/Transaxle » Transmission Description (Overview)
Components of the AW55 automatic transaxle

Components of the AW55 automatic transaxle

Item Description
1 Torque converter
2 Differential
3 The OSS (output shaft speed) sensor
4 Planetary gear set.
5 The TSS (turbine shaft speed) sensor
6 Control valve assembly
7 TCM (transmission control module)

Components of the AW55 automatic transaxle

Design:

The gear ratios are achieved by means of a combined planetary gear set on the input side and a Simpson set on the output side.

  • The combined planetary gear set consists of two different, simple planetary gear sets. It has a similar structure to a Ravigneaux set, but with just one sun gear that engages with the front planetary gears.
  • Three multi-plate clutches
  • Four multi-plate brakes
  • One band brake
  • Two one-way clutches

The TCM adapts the gear changing to ensure that the correct gear is selected for the style of driving, the engine load, driver requirements, vehicle speed etc.

The TCM features a self-learning strategy.

This leads to lower fuel consumption together with improved comfort through smoother gear changes and lower noise levels.

Gear ratios of the individual gears

Gear ratios of the individual gears

    More about «Transmission Description (Overview)»:

    Components of the AW55 automatic transaxle

    Transaxle cooling

    External shift mechanism

    Components of the electronic control

    Knowing and Understanding Customer Concerns

    Testing Possible Causes of Transmission Control Faults

    Visual inspection

    Towing the vehicle

    Push-starting the Vehicle

    Selector Lever Emergency Release

    Transmission Fluid Level Check

    Changing the Transmission Fluid

    Diagnosis with IDS

    Programming the 'N' position of the TR sensor

    Resetting the values learned by the TCM

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