Alfa Romeo MiTo

Gearbox control unit

8TDF

80 pin connector

Ambient working temperature T:

•

From -30°C to +100°C (while working)

Working voltage:

•

•

Minimum working voltage VBAT_min:

Maximum working voltage VBAT_max:

•

•

Nominal working voltage VBAT_typ:

Nominal voltage test VBAT_test:

•

Overvoltage range

Communication network:

•

C- CAN (500 kbyte/sec)

6.0 V (4.5 V while cranking)

16.0 V

12.0 V

13.5 V +/- 0.2 V

26.0 V < VBAT_ovld < 40.0 V

Special hardware functions:

•

ECU – wake-up from driver's door opening switch

Fig. 70

Gearbox ECU pin-out

Pin Description

A1 GND – power earth

A2

A3

GND – power earth

+12 V - direct battery supply

A4 N.C.

A5 N.C.

A6 N.C.

A7 N.C.

A9 N.C.

A10 N.C.

A11 N.C.

A12 N.C.

A13 N.C.

A14 N.C.

A15 N.C.

A16 N.C.

A18 N.C.

A19 SDU diagnosis feedback

A20 N.C.

A21 D TIP signal

A22 N.C.

A23 N.C.

A24 N.C.

A25 N.C.

A26 N.C.

- 82 - Alfa TCT

A27

A28

+ 12 V - battery power

+ 12 V - battery power

A29 N.C.

A30 Reverse light control 1 (optional)

A31 Reverse light control 2

A32 N.C.

A33 N.C.

A35 N.C. control

A37 N.C.

A38 N.C.

A39 CCAN H (out)

A41 N.C.

A42 N.C.

A43 Brake pedal signal

A44 N.C.

A45 N.C.

A46 N.C.

A47 N.C.

A48 N.C.

A49

A50

Serial line K (preparation)

CCAN H (IN)

A52 N.C.

28 pin connector

A65

A66

A67

A68

A69

A70

A71

Pin Description

A53 + 5 V Line pressure sensor power

A54 N.C.

A55 GND - PPV-S (shifter) solenoid valve earth

A56

A57

A58

A59

GND - PPV2 (engagement) solenoid valve earth

GND - QPV-K1 (odd gear clutch) solenoid valve earth

GND - PPV1 (engagement) solenoid valve earth

GND - PPV-K2 (even gear clutch) solenoid valve earth

A60

A61

A62

A63

A64

Electrohydraulic unit temperature sensor signal

Even gear clutch K2 pressure sensor signal

+ 12 V PPV-S solenoid valve power

+12 V PPV2 (engagement) solenoid valve power

+12 V QPV-K1 (even gear clutch) solenoid valve power

+12 V PPV1 (engagement) solenoid valve power

+12 V PPV-K2 (even gear clutch) solenoid valve power

Odd gear clutch K1 position sensor signal

Position 5/R sensor signal

A72

A73

A74

Position 2/4 sensor signal

Clutch K2 rpm sensor signal

Odd gear engagement position sensors and clutch K1 power

Even gear engagement position sensors, clutch K2 pressure and selection sensor power

Clutch rpm sensor and line pressure power

Odd clutch rpm sensor signal

A76

A77

A78

A79

A80

Position 1/3 sensor signal

Position 6 sensor signal

Sensor module and clutch K2 pressure sensor earth

Line pressure sensor and clutch K1 position sensor earth

Clutch K1 and clutch K2 rpm sensor module earth

- 83 - Alfa TCT

DTC error code list

P0571 Service brake switch (from CAN)

P0604 ECU fault (RAM)

P0605 ECU fault (ROM)

P062F ECU fault (EEPROM)

P0641 Even clutch position/hydraulic pressure sensor earth

P0666 ECU temperature

P0667 ECU temperature

P0703 Service brake switch (from CAN)

P0715 Odd gear clutch plate speed

P0716 Even gear clutch plate speed

P0719 Brake switch

P0726 Engine rpm control

P0805 Even clutch position sensor

P0817 Power supply (+15)

P081C Parking sensor

P0900 Even gear clutch solenoid valve

P0901 Even gear clutch solenoid valve

P0902 Even gear clutch solenoid valve

P0904 Selection sensor

P0905 Odd gear clutch solenoid valve

P0906 Odd gear clutch solenoid valve

P0907 Odd gear clutch solenoid valve

P0914 1st/3rd gear engagement position sensor

P0915 6th gear engagement position sensor

P0916 2nd/4th gear engagement position sensor

P0917 5th/reverse gear engagement position sensor

P0932 Hydraulic circuit pressure sensor

P0933 Odd gear clutch pressure sensor

P0942 Hydraulic circuit pressure

P1215 Driver's door

P1771 Electric pump temperature

P2901 Drain oil accumulator

P2903 No accelerator pedal information

P2904 Outside temperature

P290A

Even gear engagement sensor and even gear engagement clutch power

P290B

Even gear clutch engagement/pressure sensor and selection sensor power

P290C Clutch revolution and hydraulic pressure sensor power

P2910 Engine torque (from NCM)

P2911 Requested engine torque not reached

P2912 Maximum engine torque (from CAN)

P2913 Engine torque

P2916 Engine temperature (from NCM)

P2918 Atmospheric pressure

P291B Parking brake (from CAN)

P291E Key lock

P2920 Parking switch (inconsistency)

P2921 Lever lock solenoid

- 84 - Alfa TCT

P2922 Lever lock solenoid

P2923 Lever lock solenoid

P2927 Wheel circumference (from CAN)

P2928 Pressure (master cylinder)

P292B Failed gear selections

P292C Failed gear selections (total)

P292D 1st/3rd/5th gear release

P292E Reverse release

P292F 2nd/4th/6th gear release

P2930 Impossible gear release on both ranges

P2931 1st/3rd gear engagement

P2932 5th engagement

P2933 2nd/4th gear engagement

P2934 6th gear engagement

P2935 Failed gear engagements (total)

P2936 Impossible gear engagement on both ranges

P2937 Engaged gear release

P2938 Engaged neutral gear release

P293F Odd gear clutch

P2940 Sensor module temperature

P294B Selespeed electric pump

P294C Selespeed electric pump

P294D Selespeed electric pump

P0560 Battery voltage

P0561 Battery voltage

P0562 Battery voltage

P0606 Control unit fault (microprocessor)

P0720 Vehicle speed

P0725 Engine speed

P0813 Reverse light control

P0856 VDC messages (from CAN)

P0857 VDC messages (from CAN)

P290D End of line/service self-calibration

P290E Clutch self-calibration enabling

P290F Yaw/side acceleration node (NYL)

U0001 NCR node fault

U1700 CAN (NCR - NBC)

U1701 CAN (NCR - NCM)

U1706 CAN (NCR - NFR)

- 85 - Alfa TCT