[R129 SL] FW: schematic request

[mooncusser]

Thanks... but I can't even get my hand under the seat.
I changed out all fuses as suggested and plugged in a spare seat control switch.
Seat still won't respond...

On Tue, 10 Apr 2007 21:13:56 +0200, you wrote:


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>-----Oorspronkelijk bericht-----

>Van: Jan Kuylaars [mailto:J.kuylaars at kpnplanet.nl]

>Verzonden: dinsdag 10 april 2007 21:06

>Aan: SL Mailing List

>Onderwerp: RE: [R129 SL] schematic request

>

>

>Electric chairs from mercedes !

>

>seat control; first check your fuses. every seat has two fuses, the back

>control from left is together with

>the seat from right and vice versa.

>Then check the wires on the control box under the seats.

>control box; mentioned 5 connectors above 4 relai's

>

>connector above 1 relai = motor bottom seat up/down backside

>2nd connector= motor bottom seat up/down frontside

>3th connector= motor bottom seat forward and backwards

>4th connector= motor backrest forward and backwards

>5th connector= motor headrest up and down.

>

>The connectors on the other side:

>Just between connector 5 with 2 relai's between is the power connector.

>There should be 2 times 12 volt on the connector from 2 fuses in the

>motorcompartment

>Look well at the fuses because it me seem that they are good, but by age

>they are broken.

>For 3 $ you replace all the fuse by new, it is better to do after some

>years.

>On the left side is the connector from the door panel control, it give power

>to the system if the door is open.

>Then you have open part and at the right against the 3 relai's there is the

>connector  what go's to

>the backrest for saftey.

>When the bottom from the chair is going backwards and the backrest is almost

>coming to the side of the car, the motor is turning the backrest forward.

>

>You can take out the control box, remove carefully the relai covers and use

>very tiny sandpaper to clean the contacts.

>

>If you want to check the wiring and motors you can put the control box back

>and connect. Don't put the relaicovers back.

>if you take the 4 relai's to you, the left one controls the headrest

>up/down. 1/2 and 1/10

>you can give the cupper contact a light push and the motor will react.

>downwards push 1/2 and 2/9

>

>Then from left to right:

>first row; 1/2 3/4 5/6 7/8

>second row; 9/10 1/10 4/6/8

>third row; 2/9 3/5/7

>

>1=headrest up

>2=headrest down

>3=backrest backwards

>4=backrest forwards

>5=chair front

>6=chair back

>7=chair seat front up

>8=chair seat front down

>9=chair seat back up

>10=chair seat back down

>

>TEST PROCEDURE

>

>All values measured to ground unless otherwise noted

>Conn./Plug/Pin Pin Information Test Value Comments

>N32/1

>1.1 Coded voltage input, activates functions selected by S91 s5/s8/s9

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.2 Coded voltage input, activates functions selected by S91 s3/s4/s7

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.3 Coded voltage input, activates functions selected by S91 s1/s2/s6

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.4 Left front power seat switch group power supply output Ignition on 5 VDC

>2.1 Main ground to W18 Approx. 0 Ohms to ground

>2.2 Circuit 30, main power input Key in steering lock pos 1 12 VDC or no key

>inserted, open door 12 VDC Feed from F1fE

>2.3 Circuit 15R/30 fused power inputswitched from CF relay module 12 VDC

>with key in steering lock pos. 1 Feed from F1f4

>2.4 Circuit 30, main power input same as pin 2.2 Feed from F1fF

>4.1 Left seat proximity signal output low side

>4.2 Left seat proximity signal input Connector 4 unplugged Measure across

>pin 4.1 & 4.2 12VDC

>4.3 Left backrest lock signal output Measure to pin 2.1 > 4 VDC

>4.4 Left seat proximity signal output high side Pin disconnectedMeasure to

>pin 2.1 > 4 VDC

>4.5 Serial port data output, recalls mirror adjustment presettings from

>memory Remove connector 1 from ECMkey in steering lock pos. 1 press one of

>memory pos. buttons 4-7 VDC Note 1

>5.15.2 Rear raise/lower adjust motor power supply output Ignition on 12 VDC

>with s2 pushed in either direction (polarity reverses) Resistance0.5-15 Ohms

>5.3 Rear raise/lower pos. actual value reference input Measure to pin 5.4

>record value X thento pin 5.5 record value YAdd values X+Y = approx.

>2200Ohms

> 5.45.5 Rear raise/lower pos. potentiometerpower supply output low sidepower

>supply output high side Measure across pin 5.4 & 5.5approx. 2200Ohms

>6.16.2 Front raise/lower adjust motor power supply output Ignition on 12 VDC

>with s3 pushed in either direction (polarity reverses) Resistance0.5-15 Ohms

>6.3 Front raise/lower pos. actual value reference input Measure to pin 6.4

>record value X thento pin 6.5 record value YAdd values X+Y = approx.

>2200Ohms

> 6.46.5 Front raise/lower pos. potentiometerpower supply output low

>sidepower supply output high side Measure across pin 6.4 & 6.5approx.

>2200Ohms

>7.17.2 Seat fore/aft adjust motor power supply output Ignition on 12 VDC

>with s1 pushed in either direction (polarity reverses) Resistance0.5-15 Ohms

>7.3 Seat pos. fore/aft actual value reference input Measure to pin 7.4

>record value X thento pin 7.5 record value YAdd values X+Y = approx.

>2200Ohms

> 7.47.5 Seat pos. fore/aft potentiometerpower supply output low sidepower

>supply output high side Measure across pin 7.4 & 7.5approx. 2200Ohms

>8.18.2 Backrest fore/aft adjust motor power supply output Ignition on 12 VDC

>with s5 pushed in either direction (polarity reverses) Resistance0.5-15 Ohms

>8.3 Backrest pos. fore/aft actual value reference input Measure to pin 8.4

>record value X thento pin 8.5 record value YAdd values X+Y = approx.

>2200Ohms

> 8.48.5 Backrest pos. fore/aft potentiometerpower supply output low

>sidepower supply output high side Measure across pin 8.4 & 8.5approx.

>2200Ohms

>9.19.4 HR raise/lower adjust motor power supply output Ignition on 12 VDC

>with s4 pushed in either direction (polarity reverses) Resistance0.5-15 Ohms

>9.3 HR raise/lower pos. actual value reference input Measure to pin 9.2

>record value X thento pin 9.5 record value YAdd values X+Y = approx.

>2200Ohms

> 9.29.5 HR raise/lower pos. potentiometerpower supply output low sidepower

>supply output high side Measure across pin 9.2 & 9.5approx. 2200Ohms

>N32/2

>

>1.1 Coded voltage input, activates functions selected by S92 s5/s8/s9

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.2 Coded voltage input, activates functions selected by S92 s3/s4/s7

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.3 Coded voltage input, activates functions selected by S92 s1/s2/s6

>Measure to pin 1.4 approx. 2200 Ohms Note 1

>1.4 Right front power seat switch group power supply output Ignition on 5

>VDC

>2.1 Main ground to W19 Approx. 0 Ohms to ground

>2.2 Circuit 30, main power input Key in steering lock pos 1 12 VDC or no key

>inserted, open door 12 VDC Feed from F1fE

>2.3 Circuit 15R/30 fused power inputswitched from CF relay module 12 VDC

>with key in steering lock pos. 1 Feed from F1f4

>2.4 Circuit 30, main power input same as pin 2.2 Feed from F1fF

>4.1 Right seat proximity signal output low side

>4.2 Right seat proximity signal input Connector 4 unplugged Measure across

>pin 4.1 & 4.2 12VDC

>4.3 Right backrest lock signal output Measure to pin 2.1 > 4 VDC

>4.4 Right seat proximity signal output high side Pin disconnectedMeasure to

>pin 2.1 > 4 VDC

>4.5 Serial port data output, recalls mirror adjustment presettings from

>memory Remove connector 1 from ECMkey in steering

>

>lock pos. 1 press one of memory pos. buttons 4-7 VDC Note 1

>conn. 5-9 refer to appropriate information from N32/1as listed above

>Note 1 For further test refer to DM Body and Accessories Vol. 4 15.1

>

>

>

>Designation Description Coordinates Reference

>

>A1  Instrument cluster 38L PE54.30

>F1  Fuse and relay box 2L

>40G

>45L B.4

>F1f4 Fuse 4 43G

>F1f6 Fuse 6 41G

>F1f8 Fuse 8 40G

>F1f9 Fuse 9 42F

>F1f12 Fuse 12 42F

>F1fE Fuse E 1K

>45K

>F1fF Fuse F 2K

>46K

>K24  CF relay module 41L

>M27  Left front ESA motor group (with memory) 7L

>M27m1 Fore/aft motor 8L

>M27m2 Rear raise/lower motor 13L

>M27m3 Front raise/lower motor 11L

>M27m4 Head restraint raise/lower motor 4L

>M27m5 Backrest fore/aft motor 6L

>M28 Right front ESA motor group (with memory) 61L

>M28m1 Fore/aft motor 62L

>M28m2 Rear raise/lower motor 58L

>M28m3 Front raise/lower motor 60L

>M28m4 Head restraint raise/lower motor 67L

>M28m5 Backrest fore/aft motor 65L

>N32/1  Left front ESA control module (with memory) 4A

>12A

>20A

>28A

>36A

>N32/2 Right front ESA control module (with memory) 46A

>53A

>61A

>67A

>N32/5 Left seat proximity control module 24L

>N32/6 Right seat proximity control module 47L

>N32/7 Left backrest lock safety package 28L

>N32/8 Right backrest lock safety package 36L

>49L

>N32/9 MSC control module (with memory) 44L

>S17/3  Left front door switch 25L

>S17/4 Right front door switch 50L

>S52/1 Left backrest lock switch (left seat) 32L

>S52/1x1 Left backrest lock switch connector (left seat) 31J

>S52/2 Right backrest lock switch (left seat) 30L

>S52/2x1 Right backrest lock switch connector (left seat) 30J

>S52/3 Left backrest lock switch (right seat) 33L

>S52/3x1 Left backrest lock switch connector (right seat) 33J

>S52/4 Right backrest lock switch (right seat) 34L

>S52/4x1 Right backrest lock indicator switch connector (right seat) 34J

>S91 Left front ESA switch group (with memory) 17L

>S91e1 Illumination 20L

>S91s1 Fore/aft switch 15L

>S91s2 Rear raise/lower switch 15L

>S91s3 Front raise/lower switch 17L

>S91s4 Head restraint raise/lower switch 17L

>S91s5 Backrest fore/aft switch 19L

>S91s6 Memory button 1 switch 14L

>S91s7 Memory button 2 switch 16L

>S91s8 Memory button 3 switch 18L

>S91s9 Memory store button switch 18L

>S92 Right front ESA switch group (with memory) 54L

>S92e1 Illumination 52L

>S92s1 Fore/aft switch 56L

>S92s2 Rear raise/lower switch 57L

>S92s3 Front raise/lower switch 55L

>S92s4 Head restraint raise/lower switch 55L

>S92s5 Backrest fore/aft switch 53L

>S92s6 Memory button 1 switch 57L

>S92s7 Memory button 2 switch 56L

>S92s8 Memory button 3 switch 54L

>S92s9 Memory store button switch 53L

>W1  Main ground (behind instrument cluster) 41H

>W18 Ground (left front seat crossmember) 2E

>21H

>27E

>W19 Ground (right front seat crossmember) 46E

>49G

>50G

>X4  Terminal block (circuit 30, fuse and relay box) (2-pole) 39J B.1/4

>X6 Terminal block (circuit 58d) (2-pole) 23E

>51C B.1/4

>X11/4 Diagnostic test clutch 41F B.1/5

>B.1/15

>X18 Interior/taillamp harness connector (12-pole) 38F B.1/4

>X18/3 Interior/taillamp harness connector (8-pole) 42F B.1/4

>X54/6 ESC connector (2-pole) 43H B.1/4

>X55/3 Left front seat connector block 30G B.1/2

>X55/4 Right front seat connector block 33G B.1/2

>Z21/10  Door contact connector sleeve (switched ground) (solder joint in

>harness) 51E

>Z81/4 Circuit 58d connector sleeve (FFS) 22E

>52E

>*U27 15.00

>Electrical system, engine 0

>*U34 82.20-2000

>Interior lighting 0

>*U94 91.59

>Roll-over bar 0

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>-----Oorspronkelijk bericht-----

>Van: r129list-bounces at mbcoupes.com

>[mailto:r129list-bounces at mbcoupes.com]Namens mooncusser

>Verzonden: dinsdag 10 april 2007 18:57

>Aan: r129list at mbcoupes.com

>Onderwerp: [R129 SL] schematic request

>

>

>Hi all,

>	I need wiring schematic of electric seat system for my 300sl.

>It seems possessed... switches don't work and it moved all most all

>the way forward on day while driving. And it has not moved since. The motor

>is working... or it wouldn't have acted like "Christine" that day I was

>driving. Any suggestions????

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>

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