[R129 SL] FW: schematic request
mooncusser
moon.cusser at verizon.net
Tue Apr 10 16:42:07 EDT 2007
Good info...thanks for passing this along.
Looks like a project for the weekend.
On Tue, 10 Apr 2007 22:31:33 +0200, you wrote:
>On the front side of your seat you can find two Philips cross screws.
>Turn them loose and pull them out. They are about 2 inches long and hold the
>front of your seat clamped on the bar.
>Then you can pull the front of your seat up, and lift it out off the two
>holes under the backrest.
>Now you can see the black plastic box where the relay circuit board is
>situated.
>You can pull of the top cover and then you see the wires with connectors.
>Take out every connector one by one and push it back in good condition in
>the box and try again.
>If nothing happens for the complete range of control, you must first make a
>measurement on the rectangle connector.
>Open the door or set the lock switch on.
>pen 2 must have 12 volt 25 Amps( red-white wire ) coming from fuse box 40G
>in motor compartment just below the relay's .
>pen 4 must have 12 volt 25 Amps( red-yellow wire) coming from fuse box 45L
>in motor compartment.
>pen 1 must be earth , so it is possible that there is rust and a bad
>connection. It is mounted to the floor.
>Clean and make a measure in resistance 0 ohm . if you don't have a ohm
>measure equipment you can take a small 12 volt bulb and hold one lead to the
>earth contact and the other lead to the inner contact of the cigarette
>lighter.
>The bulb must burn. If not or glowing just a small bit, the earth contact is
>not good.
>Clean again.
>
>I have send two pictures from the system and the connectors, but the website
>manager must confirm first.
>
>Jan
>
>
>
>-----Oorspronkelijk bericht-----
>Van: r129list-bounces at mbcoupes.com
>[mailto:r129list-bounces at mbcoupes.com]Namens mooncusser
>Verzonden: dinsdag 10 april 2007 21:25
>Aan: SL Mailing List
>Onderwerp: Re: [R129 SL] FW: schematic request
>
>
>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:
>
>>
>>
>>-----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????
>>The MB Coupes Website!
>>R129 SL Mailing List
>>
>>The MB Coupes Website!
>>R129 SL Mailing List
>
>The MB Coupes Website!
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>
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