Preparation for DTC Readout

1. Connect Hand-Held Tester (HHT) to data link connector (X11/4) according to connection diagram (see section 0). 2. Ignition: ON 3. Read out DTC memory for ADS control module (N51) and for model 140, the Base Module (N16/1) as well. 4. If no DTC's are stored in memory: perform entire test in 33 as well.

	Possible cause	Test step/Remedy 1)
-	No fault in system.	In case of complaint: 23 (entire test) and 33
	ADS control module (N51)	Replace N51
	Left front body acceleration sensor (B24/3)	23 13.0
	Right front body acceleration sensor (B24/4)	23 14.0
	Right rear body acceleration sensor (B24/6)	23 15.0
	Left front axle damper valve assembly, front axle solenoid valve 1 (Y51y1)	23 6.0
	Left front axle damper valve assembly, front axle solenoid valve 2 (Y51y2)	23 6.0
	Right front axle damper valve assembly, front axle solenoid valve 1 (Y52y1)	23 7.0
	Right front axle damper valve assembly, front axle solenoid valve 2 (Y52y2)	23 7.0
	Left rear axle damper valve assembly, rear axle solenoid valve 1 (Y53y1)	23 8.0
	Left rear axle damper valve assembly, rear axle solenoid valve 2 (Y53y2)	23 8.0
	Right rear axle damper valve assembly, rear axle solenoid valve 1 (Y54y1)	23 9.0
	Right rear axle damper valve assembly, rear axle solenoid valve 2 (Y54y2)	23 9.0
	ADS MIL (A1e27)	23 3.0
	Steering angle sensor (N49)	23 4.0
	Steering angle sensor (N49), incorrect signal	23 4.0
	Steering angle sensor (N49) not initialized	23 5.0
	Model 140: Right front VSS signal from ASR/SPS control module (N47-1, N47-2) or ESP/SPS/BAS control module (N47-5) or ESP/SPS control module (N47-5)	23 11.0
	Comfort/sport switch (S45/1)	23 16.0
	Voltage supply too low	23 1.0
	Voltage supply too high	23 1.0
	Stop lamp switch (S9/1) (4-pole)	23 6.0

1) Observe Preparation for Test, see 22.