A7000 Transmission control unit

Connector location views

Number	X-pin, color	Description
X70001	9-pin, blue	Plug connector Transmission control unit Module 1
X70003	52-pin, blue	Plug connector Transmission control unit Module 3
X70004	40-pin, blue	Plug connector Transmission control unit Module 4

Pin assignments at plug connector X70001

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Terminal 15	Fuse F30

2		Not used

3		Not used

4	M	Ground	Ground connector

5	M	Ground	Ground connector

6	M	Ground	Ground connector

7	E	Terminal 30	Fuse F102

8	E	Voltage supply, transmission electronics via main relay	Fuse carrier, engine electronics

9	E	Voltage supply, transmission electronics via main relay	Fuse carrier, engine electronics

Pin assignments at plug connector X70003

Pin	Type	Description / Signal type	Connection / Measuring notes
1	E	Signal Solenoid valve Shift lock selector lever lock	Shift lock selector lever lock

2	A	Supply Solenoid valve Shift lock selector lever lock	Shift lock selector lever lock

3	E	Signal Transmission switch	Electronic immobilizer control unit

4		Not used

5		Not used

6		Not used

7		Not used

8		Not used

9		Not used

10		Not used

11		Not used

12		Not used

13		Not used

14		Not used

15		Not used

16		Not used

17		Not used

18	A	Signal Steptronic, manual gate recognition	Gear indicator light

19	A	Signal Steptronic, tip up	Steptronic switch

20	A	Steptronic, tip down	Steptronic switch

21		Not used

22		Not used

23		Not used

24		Not used

25		Not used

26		Not used

27		Not used

28		Not used

29		Not used

30		Not used

31		Not used

32		Not used

33		Not used

34		Not used

35		Not used

36		Not used

37		Not used

38		Not used

39		Not used

40		Not used

41		Not used

42		Not used

43		Not used

44		Not used

45		Not used

46		Not used

47		Not used

48		Not used

49		Not used

50		Not used

51		Not used

52		Not used

Pin assignments at plug connector X70004

Pin	Type	Description / Signal type	Connection / Measuring notes
1		Not used

2	M	Shield	Shield in front of transmission

3	M	Output speed sensor, differential signal -	Transmission control unit

4	E	Signal Transmission range position switch	Transmission range position switch

5	M	Shield	Shield in front of transmission

6		Not used

7	E	Signal Pressure actuator, converter lockup clutch	Transmission control unit

8		Not used

9		Not used

10		Not used

11	A	Voltage supply EDS and solenoid valve	Transmission control unit

12	M	Ground Transmission fluid temperature sensor	Transmission control unit

13	A	Output speed sensor, differential signal +	Transmission control unit

14	A	Signal Transmission range position switch	Transmission range position switch

15		Not used

16	E	Signal Solenoid valve	Transmission control unit

17	E	Signal Pressure actuator	Transmission control unit

18		Not used

19		Not used

20		Not used

21	A	Voltage supply EDS and solenoid valve	Transmission control unit

22	A	Signal Transmission fluid temperature sensor	Transmission control unit

23	M	Turbine speed sensor, differential signal -	Transmission control unit

24	E	Signal Transmission range position switch	Transmission range position switch

25		Not used

26	E	Signal Solenoid valve	Transmission control unit

27	E	Signal Pressure actuator	Transmission control unit

28	E	Signal Pressure actuator	Transmission control unit

29		Not used

30		Not used

31	A	Voltage supply Transmission range position switch	Transmission range position switch

32	A/E	Signal Data link TXD	Digital motor electronics control unit

33	A	Turbine speed sensor, differential signal +	Transmission control unit

34	E	Signal Transmission range position switch	Transmission range position switch

35		Not used

36	E/A	Signal CAN bus high	Digital motor electronics control unit

37	E/A	Signal CAN bus low	Digital motor electronics control unit

38	E	Signal Solenoid valve	Transmission control unit

39		Not used

40	A	Activation Reversing light relay	Reversing light relay