Preparation for Test: 1. Fuses OK. 2. Ignition: ON 3. Connect Hand-Held Tester (HHT) according to connection diagram shown in section 0. 4. Voltage supply to control modules and CAN data lines ok, see 23. 5. All CAN data lines must be connected. Abreviations: Over-head control panel control module (N70) Left seat adjustment Right seat adjustment Electronic ignition switch (N73) Pneumatic system control module, combined function (A37) Front driver-side door control module (N69/1) Front passenger-side door control module (N69/2) Signal pick-up and activation module (N10/1) Lower control panel control module (N72) The above noted abreviations are in the second column of the following actual values tables in bold type to advise of hints (regarding in which of the control modules the actual values or activations are stored). Actual values for the system being checked may be located in other control modules, therefore it is important to check the DTC memory on all control modules that are relevant to the system being checked. When calling up actual values, all actual values will appear for that particular control module.

		Test scope	Test connection	Test condition	Nominal value	Possible cause/ remedy 1)
1.0		Circuit 15R		Ignition key in position 1: Ignition: ON Ignition: OFF		23 3.0, 23 105.0
2.0		Circuit 15		Ignition key in position 2: Ignition: ON Ignition: OFF		23 2.0,
3.0		Low voltage			-	23 1.0
4.0		Excessive voltage			-	23 1.0
5.0		Interval Wipe Activation of electronic ignition switch control module (N73) by combination switch (S4).		Ignition: ON Set combination switch (S4) to: Interval wipe		23 110.0
6.0		Windshield wiper stage 1 Activation of electronic ignition switch control module (N73) by combination switch (S4).		Ignition: ON Set combination switch (S4) to: Wipe stage 1		23 110.0
7.0		Windshield wiper stage 2 Activation of electronic ignition switch control module (N73) by combination switch (S4).		Ignition: ON Set combination switch (S4) to: Wipe stage 2		23 110.0
8.0		Windshield wiper wash Activation of electronic ignition switch control module (N73) by combination switch (S4).		Ignition: ON Set combination switch (S4) to wash Wash ON: Wash OFF:		23 111.0
9.0		Activation of: Wiper stage 1 relay (K40/2k1) by signal pick-up and activation module (SAM) (N10/1)		Ignition: ON HHT: Activation Menu Press button F2:	Wiper motor runs.	23 106.0, 107.0
10.0		Activation of: Wiper stage 2 relay (K40/2k2) by signal pick-up and activation module (SAM) (N10/1)		Ignition: ON HHT: Activation Menu Press button F2:	Wiper motor runs.	23 107.0, 108.0
11.0		Activation of: Washer stage 1 relay (K40/2k3) by signal pick-up and activation module (SAM) (N10/1)		Ignition: ON HHT: Activation Menu Press button F2:	Washer pump runs.	23 109.0
12.0		Tailgate window wiper switch (S6/1s4) (Model 210 wagon only)		Ignition: ON Switch (S6/1s4): Press "wipe" : Not pressed:		23 116.0
13.0		Tailgate window wiper switch (S6/1s4) (Model 210 wagon only)		Ignition: ON Switch (S6/1s4): Press "wash" : Not pressed:		23 116.0
14.0		Rear window wiper motor (M6/4) (Model 210 wagon only)		Ignition: ON HHT: Activation Menu Press button F2: Press button F3	Rear window wiper motor runs.	23 115.0
15.0		Activation of: Windshield washer relay (K40/2k3) by signal pick-up and activation module (SAM) (N10/1) (Model 210 wagon: washer pump M5/1)		Ignition: ON HHT: Activation Menu Press button F2:	Washer pump runs.	23 117.0
16.0		Headlamp cleaning system (HCS) Activation of: Signal pick-up and activation module (SAM) (N10/1) by HCS switch (S4/1)		Ignition: ON HCS switch (S4/1): ON:		23 114.0
17.0		Headlamp cleaning system (HCS) Activation of: HCS pump (K40/2k5) by Signal pick-up and activation module (SAM) (N10/1)		Ignition: ON HCS switch (S4/1): Press ON :		23 120.0
18.0		Headlamp washer pump (M5/2)		Ignition: ON HHT: Activation Menu Press button F2:	Washer pump runs.	23 120.0
19.0		Rear dome lamp switch on/off (N70s2) Except Model 208.4		Ignition: ON Switch (N70s2): Press ON:		Roof control panel control module (N70)
20.0		Door switch on/off (N70s3)		Ignition: ON Switch (N70s3): Press ON:		(N70)
21.0		Dome lamp switch on/off (N70s4)		Ignition: ON Switch (N70s4): Press ON:		(N70)
22.0		Work lamp switch (N70s5) Model 208.4 only: Work lamp switch (N70s6) Work lamp switch (N70s7)		Ignition: ON Switch (N70s5): Press ON:		Roof control panel control module (N70)
23.0		Activation of: Dome lamp		Dome lamp switch on/off (N70s4): OFF HHT: Activation Menu Press button F2:		(N70)
24.0		Activation of: Work lamp (n70s5) Model 208.4 only: Work lamp (N70s6) Work lamp (N70s7)		Work lamp switch on/off (N70s5): OFF HHT: Activation Menu Press button F2:		(N70)
25.0		Activation of: Entrance/exit lamp (driver's side)		HHT: Activation Menu Press button F2: Press button F3:		23 127.0, Front driver-side door control module (N69/1).
26.0		Activation of: Entrance/exit lamp (passenger- side)		HHT: Activation Menu Press button F2: Press button F3:		23 127.0, Front passenger-side door control module (N69/2).
27.0	DCM3	Activation of: Entrance/exit lamp (left rear)		HHT: Activation Menu Press button F2: Press button F3:		23 128.0, Rear driver-side door control module (N69/3).
28.0		Activation of: Entrance/exit lamp (right rear)		HHT: Activation Menu Press button F2: Press button F3:		23 128.0, Rear passenger-side door control module (N69/4).
29.0		Entrance/exit lamp (driver's side)		Ignition: ON Open driver's door: Close driver's door:		23 127.0, DM, B&A, Vol. 1.1, 3.4 PSE 23 Front driver-side door control module (N69/I).
30.0		Entrance/exit lamp (passenger- side)		Ignition: ON Open passenger-side door: Close passenger-side door:		23 127.0, DM, B&A, Vol. 1.1, 3.4 PSE 23 Front passenger-side door control module (N69/2).
31.0		Entrance/exit lamp (left rear)		Ignition: ON Open left rear door: Close left rear door:		23 128.0, DM, B&A, Vol. 1.1, 3.4 PSE 23 Rear driver-side door control module (N69/3).
32.0		Entrance/exit lamp (right rear)		Ignition: ON Open right rear door: Close right rear door:		23 128.0, DM, B&A, Vol. 1.1, 3.4 PSE 23 Rear passenger-side door control module (N69/4).
33.0		Activation of: Signal tone N70h1) Model 208.4 only		Ignition: ON HHT: Activation Menu Press button F2: Press button F3:		Roof control panel control module (N70)
34.0		Heated rear window switch (in N22)		Heated rear window switch: Press on: Press OFF:		23 121.0
34.0		Heated rear window relay located in PSE control module (A37)		Ignition: ON HHT: Activation Menu Press button F2: Press button F3:	Relay in PSE can be heard switching audibly.
35.0		Activation of: LED in heated rear window switch (located in N22)		Ignition: ON HHT: activation menu Press button F2: Press button F3:	LED:	Wiring, Signal pick-up and activation module (SAM) (N10/1), A/C pushbutton control module (Automatic A/C) (N22).
36.0		CAN low				23
37.0		CAN high				23
38.0		Electronic ignition switch (N73) coded				Necessary to code N73
39.0		PSE control module (A37) coded				Necessary to code A37
40.0		Signal pick-up and activation module (SAM) (N10/1) coded				Necessary to code N10/1
41.0		Lower control field control module (N72) coded				Necessary to code N72
42.0		Roof control panel control module (N70) coded				Necessary to code N70
43.0		Front driver-side door control module (N69/I) coded				Necessary to code N69/1
44.0		Front passenger-side door control module (N69/2) coded				Necessary to code N69/2
45.0		Rear driver-side door control module (N69/3) coded				Necessary to code N69/3
46.0		Rear passenger-side door control module (N69/4) coded				Necessary to code N69/4
47.0		Left front ESA control module (N32/1) (with memory)				Necessary to code N32/1
48.0		Right front ESA control module (N32/2) (with memory)				Necessary to code N32/2
49.0		Non-USA vehicles only
50.0		Roll bar/power soft top control module (N52)				Necessary to code N52

1) Observe Preparation for Test, see 22.