Preliminary work: Function test 11

Preparation for Test (DTC readout): 1. Fuses OK. 2. Battery voltage >11 V. 3. Vehicle is unlocked via RCL, 4. Ignition: ON 5. Connect Hand-Held Tester (HHT) according to connection diagram shown in section 0. The diagnostic trouble codes (DTC's) can only be read out and erased using the Hand-Held Tester (HHT). Current diagnostic trouble codes are highlighted in black on the display. Additional detailed fault information based on fault type is displayed with nearly all diagnostic codes (DTC's) such as: > Resistance too great < Resistance too low - Short circuit to ground (GND) + Short circuit to positive (POS) -//- Open circuit

DTC	Possible cause	Hints	Test step/Remedy 1)
	Radio frequency DAS control module (N54/3) or DAS radio frequency/infrared control module (N54/4)		Replace N54/3 or N54/4
	Control line deactivation, PSE/CL, CF, ATA + or -, (SN1)		23 17.0 23 18.0 23 19.0
	Control line activation, PSE/CL, CF, ATA + or -, (SN2)		23 16.0 23 20.0 23 21.0
	Control line IR signal from left front door IR receiver (A26/1) -		23 7.0
	Control line IR signal from right front door IR receiver (A26/2) -		23 9.0
	Motor release via faulty release code (CAN)		12, 23 22.0, 23 23.0, 23 24.0, 23 25.0, 23 26.0, 23 27.0, 23 28.0, 23 29.0, 23 30.0
	Motor release for left cylinder bank via faulty release code (CAN)		12, 23 22.0, 23 23.0, 23 24.0, 23 25.0, 23 26.0, 23 27.0, 23 28.0, 23 29.0, 23 30.0
	Invalid transponder		Transmitter key defective - replace, Erase DTC memory.
	Transponder coil (L11) could not be charged		23 22.0, 23 23.0
	Activation of locking confirmation relay module (N54) or combination relay module (N10/2) has + or -		23 12.0, 23 13.0

1) Observe Preparation for Test, see 22.