Preparation for Test 1. Fuses ok, 2. Battery voltage > 11, 3. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see section 0, 4. Voltage supply to the control modules and CAN data lines ok, see DM, B&A, section 7.1, 23, 5. All CAN data lines properly connected. The actual values and activations of any system may be stored in numerous other control modules, therefore readout all actual values and activations from the control modules which are relevent to this system. When reading out the actual values, all stored in that control module will be shown. CAUTION! Erasing the Convenience Feature (CF) DTC memory, will also erase the DTC memory for the Combination Control Module (N10-1) and Mirror, steering column adjustment, heated mirrors (MSC). Abreviations: Over-head control panel control module (N70) Electronic ignition key Power window motor PSE control module (A37), combined functions Front driver-side door control module (N69/I) Front passenger-side door control module (N69/2) Rear driver-side door control module (N69/3) Rear passenger-side door control module (N69/4) Lower control panel control module (N72) Central locking The above noted abbreviations 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).

		Test scope	Test connection	Test condition	Nominal value	Possible cause/ remedy 1)
1.0		Front driver/passenger-side door control module (N69/1, N69/2) Circuit 30				N69/1, N69/2
2.0		Power window motor synchronized				Synchronize power window motor.
3.0		Roof control panel control module (N70) Circuit 30				N70
4.0		Electronic ignition lock control module (N73) Circuit 15R		Ignition switch: Position 1 ON OFF		N73
5.0		Circuit 15		Ignition switch: Position 2 ON OFF		N73
6.0		IR signal from transmitter key via left front door IR receiver (A26/1) to front driver-side door control module (N69/1)		Point the transmitter key at the left front door IR receiver (A26/1) and unlock vehicle.		23 2.0 Transmitter key defective.
7.0		Determining if transmitter key matches vehicle		Point the transmitter key at the left front door IR receiver (A26/1) and unlock vehicle.		23 2.0 Transmitter key does not belong to this vehicle.
8.0		IR convenience feature signal from transmitter key to front driver-side door control module (N69/1)		Point the transmitter key at the left front door IR receiver (A26/1) and unlock vehicle, while keeping the button depressed.		Check batteries in the transmitter key, 23 2.0, Transmitter key defective.
9.0		Ground signal from left front door lock switch (S86/1s1) 2) (CF), unlock, to front driver-side door control module (N69/1)		Using the mechanical key 2), unlock vehicle and hold key in that position.		23 22.0, 23.0
10.0		Activation of: Left front power window motor (M10/3) via front driver-side door control module (N69/1)		With RCL or mechanical key 2), unlock vehicle and hold in that postion.		23 5.0, 6.0, 7.0
11.0		IR signal from transmitter key via left front door IR receiver (A26/1) to front driver-side door control module (N69/1).		Point transmitter key at left front door IR receiver (A26/1) and lock vehicle		Check batteries in the transmitter key, 23 2.0 Transmitter key defective.
12.0		Determining if transmitter key matches vehicle		Point the transmitter key at the left front door IR receiver (A26/1) and lock vehicle.		23 2.0, Transmitter key does not belong to vehicle.
13.0		IR convienence signal from transmitter key to front driver-side door control module (N69/1).		Point the transmitter key at the left front door IR receiver (A26/1) and lock vehicle.		Check batteries in the transmitter key, Transmitter key defective.
14.0		Ground signal from left front door lock switch (S86/1s1) 2) (CF), unlock, to front driver-side door control module (N69/1)		Using the mechanical key 2), lock vehicle and hold key in that position.		23 22.0, 23.0
15.0		Activation of: Left front power window motor (M10/3) via front driver-side door control module (N69/1)		With RCL or mechanical key 2), lock vehicle and hold in that postion.		23 5.0, 7.0
16.0		IR signal from transmitter key via right front door IR receiver (A26/2) to front passenger-side door control module (N69/2).		Point the transmitter key at the right front door IR receiver (A26/2) and unlock vehicle.		Check batteries in the transmitter key, 23 3.0, Transmitter key defective.
17.0		Determining if transmitter key matches vehicle		Point the transmitter key at the right front door IR receiver (A26/2) and unlock vehicle.		23 3.0, Transmitter key does not belong to vehicle.
18.0		IR convienence signal from transmitter key to front passenger-side door control module (N69/2).		Point the transmitter key at the right front door IR receiver (A26/2) and unlock vehicle, keeping the button depressed.		Check batteries in the transmitter key, Transmitter key defective.
19.0		Activation of: Right front power window motor (M10/4) via front passenger-side door control module (N69/2)		With RCL, unlock passenger-side door and hold in that postion.		23 10.0, 12.0
20.0		IR signal from transmitter key via right front door IR receiver (A26/2) to front passenger-side door control module (N69/2).		Point the transmitter key at the right front door IR receiver (A26/2) and lock vehicle.		Check batteries in the transmitter key, 23 3.0, Transmitter key defective.
21.0		Determining if transmitter key matches vehicle		Point the transmitter key at the right front door IR receiver (A26/2) and lock vehicle.		23 3.0, Transmitter key does not belong to vehicle.
22.0		IR convienence signal from transmitter key to front passenger-side door control module (N69/2).		Point the transmitter key at the right front door IR receiver (A26/2) and lock vehicle.		Check batteries in the transmitter key, Transmitter key defective.
23.0		Activation of: Right front power window motor (M10/4) via front passenger-side door control module (N69/2)		With RCL, lock passenger-side door and hold in that postion.		23 10.0, 12.0
24.0		Activation of: Left rear power window motor (N69/3m1)		With transmitter key or mechanical key 2) lock driver-side door and hold in this position.		Rear driver-side door control module (N69/3).
25.0		Activation of: Left rear power window motor (N69/3m1)		With transmitter key or mechanical key 2) unlock driver-side door and hold in this position.		Rear driver-side door control module (N69/3).
26.0		Activation of: Right rear power window motor (N69/4m1)		With transmitter key or mechanical key 2) lock driver-side door and hold in this position.		Rear passenger-side door control module (N69/4).
27.0		Activation of: Right rear power window motor (N69/4m1)		With transmitter key or mechanical key 2) unlock driver-side door and hold in this position.		Rear passenger-side door control module (N69/4).
28.0		Left front power window switch (N72s1) (center)		Ignition: ON Switch (N72s1): Press back of switch: Press back of switch past first detent and hold: Switch not pressed: Press front of switch: Press front of switch past first detent and hold:		Lower control panel control module (N72).
29.0		Activation of: Left rear power window motor (M10/5) Model 208.4 only		With transmitter key or mechanical key 2) lock driver-side door and hold in this position.		CAN-data bus Lower control panel control module (N72). Roll bar/power soft top control module (N52).
30.0		Right front power window switch (N72s2) (center)		Ignition: ON Switch (N72s2): Press back of switch: Press back of switch past first detent and hold: Switch not pressed: Press front of switch past first detent and hold:		Lower control panel control module (N72).
31.0		Activation of: Right rear power window motor (M10/6) Model 208.4 only		With transmitter key or mechanical key 2) lock driver-side door and hold in this position.		CAN-data bus Lower control panel control Roll bar/power soft top control module (N52).
32.0		CAN-signal from LCP to Roll bar /soft top control module (N52) for left rear window motor. Model 208.4 only		Ignition: ON Switch (N72s3): Press back of switch: Switch not pressed: Press front of switch:		CAN data bus Lower control panel control module (N72)
33.0		CAN-signal from LCP to Roll bar /soft top control module (N52) for right rear window motor. Model 208.4 only		Ignition: ON Switch (N72s4): Press back of switch: Switch not pressed: Press front of switch:		CAN-data bus Lower control panel control module (N72)
34.0		Left rear power window switch (N72s3)		Ignition: ON Switch (N72s3): Press back of switch: Press back of switchpast first detent and hold: Switch not pressed: Press front of switch: Press front of switch past first detent and hold:		Lower control panel control module (N72).
35.0		Right rear power window switch (N72s4)		Ignition: ON Switch (N72s4): Press back of switch: Press back of switchpast first detent and hold: Switch not pressed: Press front of switch: Press front of switch past first detent and hold:		Lower control panel control module (N72).
36.0		Left rear power window switch (S21/3)		Ignition: ON Switch (S21/3):		23 15.0
				Press back of switch:
				Press back of switchpast first detent and hold:
				Switch not pressed:
				Press front of switch:
				Press front of switch past first detent and hold:
37.0		Right rear power window switch (S21/4)		Ignition: ON Switch (S21/4):		23 17.0
				Press back of switch:
				Press back of switchpast first detent and hold:
				Switch not pressed:
				Press front of switch:
				Press front of switch past first detent and hold:
38.0		Child safety lock switch (N72s5)		Ignition: ON N72s5:		Lower control panel control module (N72).
				Push switch to right (child symbol visible):
				Push switch to left (child symbol not visible):
39.0		Switch illumination Intensity circuit 58d Model 208.4 only: Switches N72s3, N72s4		Ignition: ON Lights: ON Based on dimming of interior.		N72
40.0		Activation of: Illumination of rear door switches		Ignition: ON Intensity set to max. Test button pressed on HHT:	Switch illumination.	Left rear power window switch (S21/3), Right rear power window switch (S21/4),
				F2:	ON	Rear driver-side door control module (N69/3),
				F3:	OFF	Rear passenger-side door control module (N69/4).
41.0		Roof control panel control module (N70) Circuit 30				N70
42.0		Vehicle recognized				Check version codes in electronic ignition switch control module (N73), N70
43.0		Sliding/pop-up roof (SR) switch (N70s1)		Ignition: ON SR switch (N70s1):		N70
				Press back of switch:
				Switch not pressed:
				Press front of switch:
				Push switch up:
				Pull switch down:
44.0		Sliding/pop-up roof Position test		Ignition: ON		44.0
				Open pop-up roof
				Open pop-up roof to end stop
				Open sliding roof
				Open sliding roof to end position
45.0		Sliding/pop-up roof synchronization		Ignition: ON Sliding/pop-up roof synchronized		Synchronize sliding/pop-up roof by raising pop-up roof completely and then keep switch pressed for more then 1 second. 42.0
46.0		Sliding/pop-up roof Anti-flutter position (Model 210 Wagon only)		Sliding/pop-up roof closed Press sliding/pop-up roof (SR) switch (N70s1) back until sliding/pop-up roof stops (SR will not fully open).	Anti-flutter position attained.	Version coding of electronic ignition switch control module (N73), Sliding/pop-up roof (M12/10 motor.
47.0		Sliding/pop-up roof (M12/1) motor Hall sensors (values count)		Ignition: ON Switch (N70s1): Pushed backwards: Pressed forwards:	Sliding roof opens, values increase.	Sliding/pop-up roof (M12/1) motor
				Push switch upwards: Pull switch down:	Sliding roof closes, values decrease.
48.0		Door contact switch		<10 V >10 V		DM, B&A, Vol. 1.1, section 3.4, 23
49.0		Door contact switch		<15.5 V >15.5 V		DM, B&A, Vol. 1.1, section 3.4, 23

1) Observe Preparation for Test, see 22. 2) (only )