Preliminary work: Function test 11

Preparation for Test (DTC readout): 1. Fuses OK. 2. Battery voltage >11 V. 3. Unlock vehicle. 4. Ignition ON. 5. Connect Hand-Held Tester (HHT) according to connection diagram shown in section 0. Note: The diagnostic trouble codes (DTC's) can only be read out and erased using the Hand-Held Tester (HHT). Note regarding Diagnostic Trouble Codes (DTC's): 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 Additionally, further diagnostic info. such as fault frequency is displayed with some of the diagnostic trouble codes.

DTC	Possible cause	Test step/Remedy 1)
	IR DAS control module (N54/1)	Replace N54/1
	Control line deactivation, + or -, (SN1)	23 17.0, 18.0, 21.0, 22.0
	Control line activation, + or -, (SN2)	23 19.0 - 22.0
	Red indicator lamp, + or -	23 5.0
	Green indicator lamp, + or -	23 6.0
	Incorrect authorization code, motor electronics (CAN)	11 7.0
	Incorrect authorization code, engine control module, left cylinder bank, (CAN)	11 7.0
	Attempt was made to start vehicle with invalid transponder identification code	IR transmitter key fault - replace key. Erase DTC's.
	Coil for transponder (coil will not saturate)	23 23.0, 24.0
	Activationof locking confirmation relay module [K54), turn signal system, + or -	23 9.0, 10.0

1) Observe Preparation for Test, see 22.