Electric seat adjustment (ESA) with memory diagnosis troubleshooting · ad9129p5000a · Mercedes-Benz WIS

AD91.29-P-5000A

Electric seat adjustment (ESA) with memory diagnosis troubleshooting

13.3.97

MODEL 210.081 /281,
210 / (except 210.081 /281) as of 1.3.97 with CODE (275a) Memory package (driver's seat, steering column, mirror)

MODEL 208 with CODE (275b) Memory package (driver's seat, mirror)

 Danger!	Risk of injury due to getting jammed or crushed in extreme cases due to limbs being severed by coming into contact with the mechanical systems	Keep parts of the body or limbs away from the range of travel of mechanical systems when parts are moving.	AS00.00-Z-0009-01A
	Electric seat adjustment (ESA) with memory diagnosis, previous knowledge		AD91.29-P-2000A
	Troubleshooting
Complaint	Possible cause	Notes	Remedy/Test step
Complete driver-side seat adjustment inoperative	Left front seat adjustment control module, with memory (N32/1) Voltage supply, driver-side power seat switch (memory), (S91/2)		AD00.19-P-6000A AD91.29-P-6001-18A
Complete driver-side seat adjustment inoperative	Right front seat adjustment control module, with memory (N32/2) Voltage supply, front passenger-side power seat switch (memory), (S92/2)		AD00.19-P-6000A AD91.29-P-6001-18A
Left front seat fore/aft adjustment with memory inoperative	Seat fore/aft switch (S91/2s1) Fore/aft motor (M27m1)		AD91.29-P-6001-01A AD91.29-P-6001-02A
Right front seat fore/aft adjustment with memory inoperative	Seat fore/aft switch (S91/2s1) Fore/aft motor (M28m1)		AD91.29-P-6001-01A AD91.29-P-6001-02A
Left front seat raise/lower adjustment with memory inoperative	Front seat raise/lower switch (S91/2s3) Front raise/lower motor (M27m3)		AD91.29-P-6001-04A AD91.29-P-6001-05A
Right front seat raise/lower adjustment with memory inoperative	Front seat raise/lower switch (S91/2s3) Front raise/lower motor (M28m3)		AD91.29-P-6001-04A AD91.29-P-6001-05A
Left front seat raise/lower adjustment with memory inoperative	Rear seat raise/lower switch (S91/2s2) Front raise/lower motor (M27m3)		AD91.29-P-6001-07A AD91.29-P-6001-08A
Right front seat raise/lower adjustment with memory inoperative	Rear seat raise/lower switch (S91/2s2) Rear raise/lower motor (M28m2)		AD91.29-P-6001-07A AD91.29-P-6001-08A
Left front seat backrest adjustment fore/aft with memory, inoperative	Backrest switch (S91/2s5) Backrest adjustment fore/aft motor (M27m5)		AD91.29-P-6001-10A AD91.29-P-6001-11A
Right front seat backrest adjustment fore/aft with memory inoperative	Backrest switch (S91/2s5) Backrest adjustment fore/aft motor (M28m5)		AD91.29-P-6001-10A AD91.29-P-6001-11A
Left front seat head restraint raise/lower with memory inoperative	Head restraint raise/lower switch (S91/2s4) Head restraint adjustment raise/lower motor (M27m4)		AD91.29-P-6001-13A AD91.29-P-6001-14A
Right front seat head restraint raise/lower with memory inoperative	Head restraint raise/lower switch (S92/2s4) Head restraint adjustment raise/lower motor (M28m4)		AD91.29-P-6001-13A AD91.29-P-6001-14A
Left or right switch illumination inoperative	Driver-side power seat switch (memory) (S91/2) Front passenger-side power seat switch (memory) (S92/2)		AD91.29-P-6001-18A AD91.29-P-6001-18A
Driver's seat position memory inoperative (memory)	Driver-side power seat switch (memory) (S91/2) CAN L/CAN H data buses Left front seat adjustment control module, with memory (N32/1)		AD91.29-P-6001-17A AD00.19-P-6000A AD00.19-P-6000A
Front passenger-side seat position memory inoperative (memory)	Front passenger-side power seat switch (memory) (S92/2) CAN L/CAN H data buses Right front seat adjustment control module, with memory (N32/2)		AD91.29-P-6001-17A AD00.19-P-6000A AD00.19-P-6000A
Seat adjustment inoperative with associated front door open without ignition "ON"	Left front door contact switch (S17/3) Right front door contact switch (S17/4) CAN L/CAN H data buses PSE control module (combined) (A37)		AD80.20-P-1000BZ AD80.20-P-1000BZ AD00.19-P-6000A AD80.20-P-1000BZ
Driver's seat function raise/lower at front, raise/lower at rear and fore/aft transposed	Left front seat adjustment control module, with memory (N32/1) Variant coding Steering column adjustment switches S91/2s11, s12 (LHS) or S92/2s11, s12 (RHS)		Brose (Bosch)/ Hammerstein (AEG) seat adjustment motor supplier incorrectly coded in control module N32/1 Left-hand steering/right-hand steering incorrectly coded Check variant coding AD91.29-P-2000-01A AD88.79-P-6000B
Left convenience entry (Easy-Entry) inoperative in ignition position "2"	Vehicle speed signal	Model 208 only	CAN H/L Left front wheel speed sensor (L6/1) Traction systems control module (N47)
Left convenience entry (Easy-Entry) inoperative	Head restraint pre-adjustment	Model 208 only	Move fore/aft adjustment onto front stop once and head restraint adjustment onto lower stop once
	Left front door contact switch (S17/3)		AD80.20-P-1000BZ
	Left front seatback release microswitch (S91/3)	up to 6/98	AD91.29-P-6001-19A
	Left front seatback release microswitch (S91/3) with additional left front seat hibernation microswitch (S91/1s2)	as of 6/98	AD91.29-P-6001-21A
	Left front seatback microswitch (S91/1)		AD91.29-P-6001-20A
	Left front seat adjustment control module, with memory (N32/1)		AD91.29-P-6001-16A
	Head restraint adjustment raise/lower motor (M27m4)		AD91.29-P-6001-14A
	Front seat adjustment fore/aft motor (M27m1)		AD91.29-P-6001-02A
Right convenience entry (Easy-Entry) inoperative	Head restraint pre-adjustment	Model 208 only	Move fore/aft adjustment onto front stop once and head restraint adjustment onto lower stop once
	Right front door contact switch (S17/4)		AD80.20-P-1000BZ
	Right front seatback release microswitch (S92/3)	up to 6/98	AD91.29-P-6001-19A
	Right front seatback release microswitch (S92/3) with additional right front seat hibernation microswitch (S92/1s2)	as of 6/98	AD91.29-P-6001-21A
	Right front seatback microswitch (S92/1)		AD91.29-P-6001-20A
	Right front seat adjustment control module, with memory (N32/2)		AD91.29-P-6001-16A
	Head restraint adjustment raise/lower motor (M28m4)		AD91.29-P-6001-14A
	Front seat adjustment fore/aft motor (M28m1)		AD91.29-P-6001-02A
Right convenience entry (Easy-Entry) inoperative in ignition position "2"	Vehicle speed signal	Model 208 only	CAN H/L Left front wheel speed sensor (L6/1) Traction systems control module (N47)

Referenced documents

ad0019p6000a Extended vehicle network (GVN), electrical system test
ad8020p1000bz Pneumatic system equipment (PSE), diagnosis, contents
ad8879p6000b Mirror, steering column adjustment, heated mirrors (MSC) test of electrical system
ad9129p200001a ESA variant coding with memory
ad9129p2000a Electric seat adjustment (ESA) with memory diagnosis previous knowledge
ad9129p600101a ESA with memory test of electrical system seat forward/back switch
ad9129p600102a ESA with memory test of electrical system voltage supply of seat forward/back motor
ad9129p600104a ESA with memory test of electrical system seat height front switch
ad9129p600105a ESA with memory test of electrical system voltage supply of seat front raise/lower motor
ad9129p600107a ESA with memory test of electrical system seat height rear switch
ad9129p600108a ESA with memory test of electrical system voltage supply of seat rear raise/lower motor
ad9129p600110a ESA with memory test of electrical system backrest switch
ad9129p600111a ESA with memory test of electrical system voltage supply of backrest forward/back motor
ad9129p600113a ESA with memory test of electrical system head restraint raise/lower switch
ad9129p600114a ESA with memory test of electrical system voltage supply of head restraint raise/lower motor
ad9129p600116a ESA with memory test of electrical system front seat backrest unlock motor
ad9129p600117a ESA with memory test of electrical system seat adjustment position memory switch
ad9129p600118a ESA with memory test of electrical system voltage supply of seat adjustment switch
ad9129p600119a ESA with memory test of electrical system front seat backrest unlock microswitch
ad9129p600120a ESA with memory test of electrical system front seat backrest angle microswitch
ad9129p600121a ESA with memory, seatback release circuit front seat, test of electrical system
as0000z000901a Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.