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General| Brand | Fiat |
|---|---|
| Model | Aisin AF40-6 |
| Category | Automobile Parts |
| Language | English |
Overview of the AISIN AF40-6 automatic gearbox for 1.9 and 2.4 JTD engines, detailing its features and architecture.
Details Neutral Control for reduced stress/consumption and Reverse Gear Control to prevent engagement at high speeds.
Explains various adaptivity modes like Adaptive, Sports, Winter/Low Grip, Tip, High Temperature, Heating, Rise, Descent, Fast On, Brake Assistance.
Describes the control unit, its A and B connectors, and their pin configurations for gearbox operation.
Details signals managed by the control unit via CAN and K lines for transmission system data and diagnosis.
Details cabling inside the gearbox, connected to sensors and solenoids, with a pin-out diagram for identification.
Explains the function of the solenoid valve pack in supplying hydraulic pressure to brakes, clutches, and lock-ups via solenoids.
Describes four linear solenoids controlling hydraulic pressure for most brakes and clutches in a linear fashion.
Details two ON/OFF solenoids that control the "B2" brake for the exhaust brake function in first gear.
Explains the role of SLT (line pressure) and SLU (lock-up) linear solenoids based on throttle, engine, and speed signals.
Describes the Hall-effect lever position sensor built into the control unit, indicating gear lever position.
Details the NTC oil temperature sensor integrated into the gearbox cabling for monitoring fluid temperature.
Explains the function of input and output speed sensors measuring rotation speed for the gearbox and differential.
Outlines the stall test procedure to check gearbox and torque converter operation by measuring maximum RPM in D and R positions.
Step-by-step guide for checking transmission fluid level, including vehicle positioning, engine start, and temperature management.
Details actions if no fluid emerges during the level check, including adding fluid and re-checking the level.
Provides torque specifications for plugs and details oil types and capacities for different engine versions of the gearbox.
Illustrates plug locations for the overflow system, including details on tightening torques for assembly and service.
Explains manual/automatic gear changes via selector lever and sequential changes via steering wheel controls.
Describes how to select different driving modes (Normal, Sport, Winter) using the SPORT/WINTER button on the control panel.
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