Fiat Aisin AF40-6 Manual Download Page 8 | Manualshive

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Fiat Aisin AF40-6 Manual Download Page 8

ALFA 159 TRAINING MATERIAL

Fiat Auto S.p.A.

After Sales Training

You can easily see the difference compared with the AISIN 5-speed gearbox fitted to
the 2.2 petrol engine version:

AISIN 6-speed cabling

Solenoid valve pack

The purpose of the solenoid valve pack is to supply, through solenoids actuated by the
control unit signals, the hydraulic pressure generated by the oil pump to the brakes,
clutches and lock-ups. Moroever, part of the oil is reserved for component lubrication.

NSW built
into the
control unit

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Summary of Contents for Aisin AF40-6

Page 1: ...ALFA 159 TRAINING MATERIAL Fiat Auto S p A After Sales Training Aisin AF40 6 1 9 Multijet 16V 2 4 Multijet 20V 3 2 JTS ...

Page 2: ...built it Neutral Start Switch and control unit internal speed sensors and cabling NAME AF 40 6 VEHICLE 194 ENGINE VERSIONS 1 9 JTD 16V 2 4 JTD 16V GEAR RATIO 1 4 148 2 2 370 3 1 556 4 1 155 5 0 859 6 0 686 R 3 394 Idle shaft 0 836 Differential 3 188 BRAKES AND CLUTCHES CLUTCHES C1 1 flange 6 discs 6 plates 1 flange 7 discs 7 plates C2 1 flange 3 discs 3 plates 1 flange 4 discs 4 plates C3 1 flange...

Page 3: ...ALFA 159 TRAINING MATERIAL Fiat Auto S p A After Sales Training Gearbox section 1 Torque converter 2 Transmission gear 3 Transmission gear 4 Differential 5 C1 C2 C3 clutches 6 B1 B2 F1 brakes ...

Page 4: ...peed to avoid front wheel slipping TIP By moving the lever from D to the driver may choose the gear shifting point in a sequential fashion In any case the control unit will change the gear automatically to avoid out of revs conditions or vice versa to avoid jerks when the engine speed is too low HIGH TEMPERATURE In case of too high gearbox oil temperature the control unit will advance lock up actu...

Page 5: ...connector is connected to the gearbox cabling in the pin to pin configuration The A connector is connected to the front cable 1 Key switch signal 2 N C 3 N C 4 K line 5 Steering lock signal 6 CAN L 7 CAN H 8 CAN H 9 Ground 10 N C 11 Power supply 12 N C 13 Reversing light relay 14 CAN L 15 N C 16 N C ...

Page 6: ... status I CAN System failure warning light O CAN Max gearbox oil temperature warning light O CAN Gear ON display O CAN Gear selection I CAN System diagnosis I O K Vehicle speed I CAN Brake pedal pressed for recovery brake light contact I CAN Driver s side front door status I CAN Acoustic indicator actuation O CAN Start enable to NBS O on off GND Reversing light control O on off 15 Engine water tem...

Page 7: ...ng 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 made by Aisin ...

Page 8: ...2 2 petrol engine version AISIN 6 speed cabling Solenoid valve pack The purpose of the solenoid valve pack is to supply through solenoids actuated by the control unit signals the hydraulic pressure generated by the oil pump to the brakes clutches and lock ups Moroever part of the oil is reserved for component lubrication NSW built into the control unit ...

Page 9: ...ALFA 159 TRAINING MATERIAL Fiat Auto S p A After Sales Training 1 Control unit 2 Torque converter 3 Solenoid valve pack 4 Brakes clutches 5 Oil radiator 6 Oil pump 7 Epicyclical gears ...

Page 10: ... clutches ON OFF solenoids two ON OFF solenoids are provided which control the B2 brake for the exhaust brake in the first gear SLT linear solenoid it controls in a linear fashion the line pressure depending on the throttle signal and the engine torque SLU linear solenoid it controls in a linear fashion the lock up pressure with regard to throttle signal engine revs gearbox input speed gearbox out...

Page 11: ...or 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 Linear characteristic of the position sensor Oil temperature sensor The oil temperature sensor is a NTC and is built into the cabling NCA ...

Page 12: ...veys the motion to the differential 1 4 Tests Stall test The purpose of the stall test is to check correct operation mainly of the gearbox and the torque converter It is carried out with the gear lever in positions D or R The test procedure is as follows lock the four wheels and engage the handbrake press the brake pedal fully down with your left foot position the gear lever to D press the acceler...

Page 13: ...n D and viceversa with the brake pedal depressed Maintain the selector in each position for 2 seconds Adjust the transmission fluid temperature between 80 85 C connecting the Examiner to allow the automatic transmission fluid cooling circuit thermostat valve to open then stabilise at a temperature of 35 45 C Remove the automatic transmission fluid level check plug 1a and check that fluid emerges f...

Page 14: ...e brake pedal depressed move the gear selector twice from position P to position D and viceversa maintaining the selector in each position for 2 seconds Set the selector to P and operate the parking brake it is advisable to use chocks to lock the wheels Remove the automatic transmission fluid level check plug and check that fluid emerges from the drain plug hole If no fluid emerges repeat the abov...

Page 15: ...heck plug 0 6 0 8 daNm Tighten the automatic transmission fluid drain plug to the recommended torque Automatic transmission filler plug 2 4 3 6 daNm Automatic transmission Fluid for 1 9 JTD 16v 2 4 JTD 20v 3 2 JTS Oil Type TUTELA GI VI Replacing gearbox from spare part department 2 84 Litres 15 deg c Changing oil during service 3 89 Litres 15 deg c Total refilling after gearbox opening 7 14 Litres...

Page 16: ...ALFA 159 TRAINING MATERIAL Fiat Auto S p A After Sales Training ...

Page 17: ... from selector lever The 6 gear changes can be managed sequentially by moving the lever to the right and raising it in the direction engages a higher ratio whilst lowering it in the direction engages a lower ratio Each gear engaged is shown by a number on the instrument panel display Automatic command from selector lever The automatic command D can be selected from the sequential operation in any ...

Page 18: ...tio Automatic driving mode selection where present It is possible to select different driving modes by pressing the SPORT WINTER button on the gearbox control panel The following driving modes are available NORMAL gear changes at low engine speeds favouring comfort and reduced consumption SPORT gear changes at higher engine speeds enhancing sporty driving WINTER programme for setting off on roads ...

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