Preliminary work: Function test 11

Preparation for Test: 1. Check fuses F1-22, and F4-3 OK. 2. Connect Hand-Held Tester (HHT) to 38-pole data link connector (X11/4) 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). CAUTION! Erasing the Mirror, steering column adjustment, heated mirrors (MSC) DTC memory, will also erase the DTC memory for the Combination Control Module (N10-1) and Convenience Feature (CF).

DTC	Possible cause	Test step/Remedy 1)
	Combination control module (N10-1)	Replace N10-1
	Left/right front ESA control module (N32/1, N32/2) (with memory)	N32/1 or N32/2
	Low voltage < 10 V	-
	Excess Votage > 15.5 V	-
	Circuit 15R	23 2.0
	Circuit 30C, fuse F4-7	23 2.0
	Circuit 31B	23 2.0
	Driver's seat does not communicate via CAN data line	D.M., Body and Accessories, Vol. 4, 15.3, > 23 > 21.0, 22.0, 23.0, 24.0, 25.0
	CAN low-interior bus	D.M., Body and Accessories, Vol. 4, 15.3, > 23 > 22.0, 24.0, 25.0
	CAN high-interior bus	D.M., Body and Accessories, Vol. 4, 15.3, > 23 > 21.0, 23.0, 25.0
	Electrically adjustable steering column switch wire -	23 7.0, 8.0, 9.0
	Outside rearview mirror vertical/horizontal/left/right adjustment (S21s6/s7/s8) >25 sec. -, +, circuit 30 -//-, circuit 31 -//-	23 1.0, 3.0, 4.0
	Electrically adjustable and heated driver-side outside rearview mirror (with memory) (M21/4) >25 sec., wiring -//-	23 12.0, 13.0, 14.0
	Electrically adjustable and heated driver-side outside rearview mirror (with memory) (M21/4) >2 sec., wiring -//-	23 7.0, 8.0, 9.0
	Verticle adjustment motor (M21/5m1) (up/down) , wiring Horizontal adjustment motor (M21/5m2) (in/out) , wiring	23 5.0, 7.0 23 6.0, 8.0
	Verticle adjustment motor (M21/4m1) (up/down) , wiring Horizontal adjustment motor (M21/4m2) (in/out) , wiring	23 11.0, 12.0 23 10.0, 13.0
	Combination control module (N10-1) does not switch	N10-1

1) Observe Preparation for Test, see 22.