Description

The TIM supply voltage is too low (<16V).

Effects on the driving operation

No communication with the TIM possible. Unable to read the transmission-specific data. The vehicle might drive with the wrong transmission configuration.

Possible causes

The software version of the transmission control unit does not match the software version of the TIM.

Internal fault in the transmission control unit.

Internal fault in the TIM.

Connector pin assignment of the transmission control unit

Pin	Stecker A	Stecker B	Stecker C	Stecker D
1	SHIELD	EK	FLEXI-1	-BATT
2	TIM+	DK	---	IGN
3	TIM-	SK	FLEXI-3	FLEXI-11
4	N1+	RBK	FLEXI-4	K-LINE
5	N1-	TB	FLEXI-5	CAN1-H
6	N2+	---	FLEXI-6	CAN1-H
7	N2-	RBG	FLEXI-7	CAN-SHLD
8	N3+	PB	FLEXI-8	CAN1-L
9	N3-	WR	FLEXI-9	CAN1-L
10	---	WP	FLEXI-10	CAN2-H
11	---	---	FLEXO-2H	CAN2-H
12	EKM	FLEXI-12	FLEXO-4H	CAN2-L
13	DKM	S-GND	FLEXO-3H	CAN2-L
14	SKM	OIL-LVL	FLEXO-5L	CAN1-R
15	PBM	T-SUMP	---	---
16	TBM	---	---	FLEXO-1L
17	RBKM	T-CONV	---	CAN2-R
18	MVM-GND	MV-GND	---	+BATT

Connector pin assignment of the transmission connector

Pin	Name	Pin	Name	Pin	Name
1	S-GND	14	RBK	27	EKM
2	MV-GND	15	RBG	28	PBM
3	MV-GND	16	TB	29	RBKM
4	---	17	WR	30	TBM
5	T-CONV	18	---	31	MVM-GND
6	T-SUMP	19	---	32	N1+
7	OIL-LVL	20	---	33	N1-
8	P-DIFF	21	TIM-	34	N2+
9	SK	22	TIM+	35	N2-
10	DK	23	---	36	N3+
11	EK	24	SHIELD	37	N3-
12	PB	25	SKM
13	WP	26	DKM

Internal cable harness

Location

ECU software, TIM.

Instruction

Ensure stable voltage supply.

Clear fault memory.

Setting conditions for the event

No description available.

Test conditions for the event

No description available.

Final function check

If the defective component cannot be clearly identified, you should try to reproduce the fault:

• Reinstall the component in the vehicle.
• Test the function.

After the fault has been eliminated, the following steps have to be carried out:

• Conduct a test drive with function check.
• Read out the fault memory.
• Check the transmission for leaks.
• Perform a final visual inspection.

These steps are necessary to ensure the entire vehicle functions.

See also:

		Aftersales service index