Preparation for DTC Readout Connect impulse counter scan tool and/or HHT to data link connector (X11/4) according to connection diagram (see section 0). Model 124: yellow wire to socket 14 Models 129, 140, 202: yellow wire to socket 7 Model 210: HHT Note concerning Electronic Traction System (ETS) adaptation (only model 202, as of 06/94) If the CC/ISC control module (N4/3) is replaced, or if a control module from another vehicle is temporarily installed, the ETS adaptation must be activated. Thereby allowing the CC/ISC control module to adapt to the vehicle configuration, ie: with ETS or ABS only. ETS Adaptation 1. Ignition: ON 2. Wait 3 seconds 3. Engine: Start 4. Wait seven seconds 5. Ignition: OFF Absolutely required. 6. Ignition: ON

DTC		Possible cause	Test step/Remedy 1)
		No fault in system	-
		CC/ISC control module (N4/3) Closed throttle position switch (M16/3s2) Stop lamp switch (S9/1) Cruise control switch (S40) OFF CC/ISC control module (N4/3) Actual value potentiometer Starter lock-out/back-up lamp switch (S16/3) (transmission range recognition) Engine speed (TN) signal Vehicle speed signal (VSS) Safety relay within CC/ISC control module (N4/3) CC/ISC control module (N4/3) Engine harness	N4/3 23 6.0-8.0 24 16.0 23 2.0 N4/3 23 4.0 , 5.0 23 11.0 23 13.0 23 15.0 N4/3 N4/3 Check harness wire insulation.
		Conditions for activation of CC/ISC actuator (M16/2) not fulfilled.	Conditions: Engine: OFF Transmission range: P/N
		CC/ISC actuator (M16/2) Throttle valve actual value potentiometer (M16/2r1) Drive actual value potentiometer (M16/2r2) Safety contact switch (M16/2s1) CTP switch recognition (M16/2s2) Potentiometer voltage supply Reset not accomplished (actuator adaptation)	23 3.0-10.0 23 5.0 23 4.0 23 6.0 , 8.0 23 7.0 23 3.0 Erase DTC: Ignition: OFF Ignition: ON (for at least 90 seconds) If DTC reappears: CC/ISC actuator (M16/2)
		CC switch (S40)	23 2.0
		Stop lamp switch (S9/1)	23 16.0
		Not valid for U.S. vehicles
		CAN databus: Message from CC/ISC control module (N4/3) faulty Reception from engine control module (N3/4) faulty	23 19.0 N4/3
		Left front axle VSS sensor (L6/1) from ABS (N30) or ETS/SPS (N47-2) control module	23 14.0
		Rear axle VSS sensor (L6) from ABS control module (N30) Left rear axle VSS sensor (L6/3) from ETS/SPS control module (N47-2)	23 15.0
		Incorrect CC/ISC control module (N4/3) installed	N4/3
		ETS signal	23 20.0
		Engine speed signal (TN) from engine control module (N3/4)	23 13.0
		Fuel safety shut-off signal to engine control module (N3/4)	23 17.0

1) Observe Preparation for Test, see 22 .