Summary of Contents for Fiat Aisin AF40-6
- Page 1 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Aisin AF40-6 1.9 Multijet 16V 2.4 Multijet 20V 3.2 JTS...
- Page 2 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training 1 AISIN AF40-6 GEARBOX 1.1 Description The AISIN AF 40-6 gearbox is an automatic, 6-speed gearbox used for the 1.9 JTD 16V and 2.4 JTD 20V engine versions. General features Type: automatic, 6-speed gearbox Engine: 1.9 JTD 16V and 2.4 JTD 20V...
- Page 3 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Gearbox section: Torque converter Transmission gear Transmission gear Differential C1, C2, C3: clutches B1, B2, F1: brakes...
- Page 4 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training 1.2 Functions Neutral Control When the vehicle is stopped with the lever in position “D”, the clutches will be automatically released, and the gearbox will be set to neutral. Thus, the torque converter will not be stressed;...
- Page 5 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training 1.3 Components Control unit The B connector is connected to the gearbox cabling, in the pin-to-pin configuration. The A connector is connected to the front cable: Key switch signal N.C.
- Page 6 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Input/output managed by the control unit The interface with the automatic transmission system manages the information through the following serial lines: C-CAN (information, data) K line (diagnosis) TYPE OF SIGNAL...
- Page 7 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Cabling The cabling is located inside the gearbox and is connected, inside the valve body, to the following items: speed sensors; oil temperature sensor; solenoids. Cabling pin-out The cabling is connected to the gearbox control unit by means of a pin-to-pin connector...
- Page 8 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training You can easily see the difference compared with the AISIN 5-speed gearbox fitted to the 2.2 petrol engine version: NSW built into the control unit AISIN 6-speed cabling Solenoid valve pack...
- Page 9 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Control unit Torque converter Solenoid valve pack Brakes/clutches Oil radiator Oil pump Epicyclical gears...
- Page 10 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Solenoids Linear solenoids: four linear solenoids provided, which control, in a linear fashion, the hydraulic pressure of almost all the brakes/clutches ON/OFF solenoids: two ON/OFF solenoids provided, which control the “B2” brake for the...
- Page 11 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Sensors Lever position sensor (NSW) The position sensor is of the Hall-effect type and is built into the body of the control unit. It informs the control unit of the gear lever position...
- Page 12 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Features: Temperature Resistance 10 °C 5.62-7.31 (kΩ) 25 °C 3.5 (kΩ) 110 °C 0.22-0.27 (kΩ) Input/output speed sensors 1.input 2.output The input speed sensor measures the rotation speed input to the gears, i.e. the converter turbine speed.
- Page 13 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training 1.5 Procedures Oil level check Position the vehicle on a lift. With the coolant cold, start the engine and move the speed selector twice from position "P" to position "D" and viceversa with the brake pedal depressed.
- Page 14 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training If no fluid emerges, proceed as follows Retighten the automatic transmission fluid level check plug. Remove the automatic transmission fluid filler plug. Add 0.5 litres of the specified fluid to the filler opening 1.
- Page 15 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training Before tightening, check that the o-ring fitted to the plug is undamaged. Replace the o-ring if it is damaged. Automatic transmission fluid level check plug: 0.6 -0.8 daNm Tighten the automatic transmission fluid drain plug to the recommended torque.
- Page 16 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training...
- Page 17 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training 1.6 GEAR CONTROLS The request to change gear may take place in the following ways: - sequential (manual) or automatic via the selector lever - sequential (manual) via the steering wheel controls (where present).
- Page 18 Fiat Auto S.p.A. ALFA 159 TRAINING MATERIAL After Sales Training To use the controls of the steering wheel, the gear lever must be in a (manual) sequential position: Operating the lever on the steering wheel in the + direction engages a higher ratio...
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