Electrical wiring diagrams, see Electrical Troubleshooting Manual.

Test step	Scope of test	Test connection			Test condition	Nominal value	Possible cause/remedy
1.0	Throttle valve signal from/to electronic accelerator/cruise control module (N4/1)	20	N30/1	16	Ignition: OFF Unplug ABS/ASR control module (N30/1), Connect socket box and signal generator. Connect red wire to socket 16, set frequency to 200 Hz and voltage to 10 V (square wave).
		20	N30/1	13	Ignition: ON Move accelerator pedal to full load position.	4 - 7 V and electronic accelerator actuator (M16/1) must only move approx. 50% from idle position	Open/short circuit between control modules (N30/1 and N4/1). If nominal value is attained: perform ABS/ASR Test Program (see Diagnostic Manual, Chassis and Drivetrain), If nominal value is not attained: perform Test 23 1) .

1) Observe Preparation for Test, see 22 .