Car automatic transmission Mazda 3 (BK)

General information about automatic transmission
The operation of the electronic automatic transmission in the block with the main gear is divided into three systems: the electronic control mechanism, the hydraulic...

Design and operation of the transmission mechanism
Fig. 3.73. Design of the transmission mechanism: 1 – forward clutch; 2 – one-way clutch; 3 – reverse and low gear brake; 4 – forward planetary gear; 5 – reverse...

Electronic Control System (ECS)
The automatic transmission PCM unit is integrated with the engine control unit. The vehicle PCM unit issues a control signal to the engine and transmission according to...

Automatic transmission shift mechanism
Fig. 3.76. Automatic transmission shift mechanism The shift block consists of a locking cable, a locking cam and a locking mechanism. The shift system directly tracks...

The principle of operation of the automatic transmission shift mechanism
The selector lever can be moved from position P only under the following conditions: the brake pedal is pressed; the selector lever button is pressed. Fig. 3.77....

Checking the Shift Lock
Turn the ignition switch to the ON position. Check that the selector lever is in position P. Press the brake pedal and check that the selector lever can be moved from...

Checking the ignition key lock
Make sure that the ignition key cannot be removed from the lock with the selector lever in any position other than P. If a fault is found, check the locking cable.

Checking the locking cable
Remove the locking cable. Fig. 3.78. Checking the locking cable: 1 – slider pin; 2 – locking cable; 3 – brake light switch With the slider pin in the position shown in...

Checking the selector lever
Turn the ignition key to the ON position (engine off). Make sure that when you move the lever to each position with the brake pedal depressed, you hear a click. Make...

Adjusting the gear selector cable
Remove the center console. Move the selector lever to position P. Fig. 3.80. Unlocking the gear selection cable (from the selector lever side) Unlock the gear selector...

Adjusting the gear shift switch
Disconnect the cable from the negative battery terminal. Fig. 3.82. Disconnecting the gearbox control cable Loosen the nut and disconnect the gearbox control cable (Fig....

Removal and installation the selector lever
Fig. 3.88. Automatic transmission shift mechanism: 1 – steering column trim (with key locking mechanism); 2 – clamp (with key locking mechanism); 3 – clamp (with key...

Installing the locking cable
Make sure the selector lever is in position P and the ignition key is in the LOCK position. Press the locking mechanism and rest it against the brake pedal limiter...

Automatic transmission operation map FN4A-EL
Table 3.4. FN4A-EL automatic transmission operation map *1 Automatic switches between "power" and "normal" modes according to the speed of pressing the accelerator...

Electronic controls and their operation
Table 3.5. Electronic control elements and their operation X – available. 0 – reserve

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More sections on repairs of other Mazda models
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• Transmission: Automatic gearbox Mazda CX-5KE (2012-2017)

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Mazda3 BK (2003-2009)