CEM Mark 1 Pinout
Moderators: jifflemon, coyote1980, Rachel
CEM Mark 1 Pinout
Hello,
Does anyone has the pinout/wiring diagram/schematics of a CEM Mark 1 (5 DK 004 696-01) for a 1990 Volvo 480?
The electrical diagram that is avaiable to download only have the CEM Mark 3, and I would like the diagram for the mark 1, because my CEM has some problems and I would like to repair it.
Thanks
Does anyone has the pinout/wiring diagram/schematics of a CEM Mark 1 (5 DK 004 696-01) for a 1990 Volvo 480?
The electrical diagram that is avaiable to download only have the CEM Mark 3, and I would like the diagram for the mark 1, because my CEM has some problems and I would like to repair it.
Thanks
- brinkie
- 480 Connoisseur
- Posts: 867
- Joined: Mon Apr 21, 2014 11:20 am
- Location: The Netherlands
- Contact:
Re: CEM Mark 1 Pinout
Though I have a MY 1995 480 with a CEM-III, I have a friend with a MY 1989 480 ES who is equally keen with electronics as I am, and he has more or less reverse engineered the CEM-01 pinout and put it in a Google doc we are both maintaining. Very handy, where there's an internet connection, I have all pinouts in my pocket! (Ha! I have fooled you lot into thinking I am a walking 480 Wikipedia )
Trouble is, though we are both fluent in English, we haven't got round to translating it, so it has been translated in a rush. Sorry about the formatting.
Wiring colours: Br = Brown, Bl = Blue, Wt = White, SB = Black, R = Red, Gr = Grey, Gn = Green, Y = Yellow
Pin Wire colour Description
A1 nc n/a
A2 Br-Bl Switch door lock drivers side
A3 Wt-Br Warning (Hazard light?)
A4 Bl Diagnose (CEM-01 only)
A5 Br Ground
A6 SB Seat belt
A7 R-Bl Door open drivers side
A8 SB-Br Horn switch
A9 Gr-Gn Switch windscreen washer rear
A10 SB-Gn Windscreen washer rear connector 4
A11 Gn-Br Windscreen washer rear connector 3
A12 Bl-Gr Main beam left fuse 8
A13 nc n/a
A14 Gr-Wt Fuse 19
A15 Y-Br Standing light right fuse 11
A16 Br-Gr Rear light switch "8"
A17 Gn Wiper motor
A18 Wt-Br Switch wiper/washer "J"
A19 Br-Gr Switch door lock passengers side
A20 SB-R Rear windscreen heater switch "6"
A21 Y-SB Check door open
A22 Y-Br Passenger seat belt check
A23 nc n/a
A24 Y-Wt Door open passengers side
A25 Bl-SB Switch lock rear hatch
A26 Bl-Y Auxiliary beam switch through main beam
A27 Gr-Gn pin 85 VEM
A28 Br-R alternator from battery light instrument cluster
A29 Gn Rear wiper through diode
A30 R +12V battery
A31 nc n/a
A32 Wt-SB interior light and reading lights
A33 Wt ?
A34 Bl-Gr Low beam through fuse 6
A35 Wt-Gn ?
B1 Gl-Wt 12V fuse 15
B2 Gn-Br 12V fuse 17
B3 Gl-Wt Rear window heater and mirror heater
B4 Gn-Br Output flasher relay to direction indicator switch
C1 Or 12V fuse 14
C2 Gl-Bl 12V fuse 16
C3 Wt-Bl 12V fuse 23 through ignition relay +75
C4 Wt-Br Full throttle signal
C5 nc n/a
C6 Wt-Gr 12V fuse 18
D1 nc n/a
D2 SB-R Microswitch in bonnet lock
D3 Gr-R Horn
D4 W-Gr Resting position windscreen wiper
D5 W-Gr Headlight washer pump
D6 Bl-Y Auxiliary beams
D7 Or A/C compressor
D8 Br Ground
Trouble is, though we are both fluent in English, we haven't got round to translating it, so it has been translated in a rush. Sorry about the formatting.
Wiring colours: Br = Brown, Bl = Blue, Wt = White, SB = Black, R = Red, Gr = Grey, Gn = Green, Y = Yellow
Pin Wire colour Description
A1 nc n/a
A2 Br-Bl Switch door lock drivers side
A3 Wt-Br Warning (Hazard light?)
A4 Bl Diagnose (CEM-01 only)
A5 Br Ground
A6 SB Seat belt
A7 R-Bl Door open drivers side
A8 SB-Br Horn switch
A9 Gr-Gn Switch windscreen washer rear
A10 SB-Gn Windscreen washer rear connector 4
A11 Gn-Br Windscreen washer rear connector 3
A12 Bl-Gr Main beam left fuse 8
A13 nc n/a
A14 Gr-Wt Fuse 19
A15 Y-Br Standing light right fuse 11
A16 Br-Gr Rear light switch "8"
A17 Gn Wiper motor
A18 Wt-Br Switch wiper/washer "J"
A19 Br-Gr Switch door lock passengers side
A20 SB-R Rear windscreen heater switch "6"
A21 Y-SB Check door open
A22 Y-Br Passenger seat belt check
A23 nc n/a
A24 Y-Wt Door open passengers side
A25 Bl-SB Switch lock rear hatch
A26 Bl-Y Auxiliary beam switch through main beam
A27 Gr-Gn pin 85 VEM
A28 Br-R alternator from battery light instrument cluster
A29 Gn Rear wiper through diode
A30 R +12V battery
A31 nc n/a
A32 Wt-SB interior light and reading lights
A33 Wt ?
A34 Bl-Gr Low beam through fuse 6
A35 Wt-Gn ?
B1 Gl-Wt 12V fuse 15
B2 Gn-Br 12V fuse 17
B3 Gl-Wt Rear window heater and mirror heater
B4 Gn-Br Output flasher relay to direction indicator switch
C1 Or 12V fuse 14
C2 Gl-Bl 12V fuse 16
C3 Wt-Bl 12V fuse 23 through ignition relay +75
C4 Wt-Br Full throttle signal
C5 nc n/a
C6 Wt-Gr 12V fuse 18
D1 nc n/a
D2 SB-R Microswitch in bonnet lock
D3 Gr-R Horn
D4 W-Gr Resting position windscreen wiper
D5 W-Gr Headlight washer pump
D6 Bl-Y Auxiliary beams
D7 Or A/C compressor
D8 Br Ground
Robert.
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Re: CEM Mark 1 Pinout
Thank you for you awnser brinkie.
Do you know what is RM bridge in the board (images bellow)? Mine has a pin broke. Should I solder it?
I also would like to know if it is possible to test the board in workbench?
Thanks
Do you know what is RM bridge in the board (images bellow)? Mine has a pin broke. Should I solder it?
I also would like to know if it is possible to test the board in workbench?
Thanks
- jamescarruthers
- 480 Is my middle name
- Posts: 2515
- Joined: Mon Jul 07, 2003 3:19 pm
- Location: Cambridge
Re: CEM Mark 1 Pinout
You can test in the car: http://www.volvo-480-europe.org/volvo48 ... lfdiagnose
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)
Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)
Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)
Re: CEM Mark 1 Pinout
Jamesjamescarruthers wrote: ↑Wed Oct 30, 2019 10:59 pmYou can test in the car: http://www.volvo-480-europe.org/volvo48 ... lfdiagnose
that is a VERY useful link
Alan
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
Re: CEM Mark 1 Pinout
It is, but I think you'll find that on a post 91 car (which will have a CEM IIl ) the testing of the CEM, like everything else, is done via the diagnostic box under the bonnet...I need to double check that though!Alan 480 wrote: ↑Thu Oct 31, 2019 12:38 pmJamesjamescarruthers wrote: ↑Wed Oct 30, 2019 10:59 pmYou can test in the car: http://www.volvo-480-europe.org/volvo48 ... lfdiagnose
that is a VERY useful link
That said, the principle is exactly the same.
David
Current: 1994 480 GT, 1996 460 CD & 1997 440 LE with lots of optional extras & 2007 V50 SE Sport
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!
Re: CEM Mark 1 Pinout
Does anyone know the reference and where to buy of the relays that are on the CEM.
I would like to buy the two types for spares.
Thanks
I would like to buy the two types for spares.
Thanks
- brinkie
- 480 Connoisseur
- Posts: 867
- Joined: Mon Apr 21, 2014 11:20 am
- Location: The Netherlands
- Contact:
Re: CEM Mark 1 Pinout
The big ones I have yet to find out where they can be bought separately, the small ones are available for a few quid each through sellers like Conrad.
I think I know what the small strip of metal does which you have pointed out: it is probably a current measuring resistor for the flasher. If the flasher IC detects too little current, the flasher assumes a blown bulb and doubles the flashing frequency. Without it, the flasher won't work, i.e. your Volvo will be turned into a BMW.
I think I know what the small strip of metal does which you have pointed out: it is probably a current measuring resistor for the flasher. If the flasher IC detects too little current, the flasher assumes a blown bulb and doubles the flashing frequency. Without it, the flasher won't work, i.e. your Volvo will be turned into a BMW.
Robert.
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Re: CEM Mark 1 Pinout
are the big ones not the same as fitted to a 'plug-in' relay, obviusly without the spades on the base??
so if really needed they could be 'hard wired' and 'potted' or use heat shrink around the wires?
Alan
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
- brinkie
- 480 Connoisseur
- Posts: 867
- Joined: Mon Apr 21, 2014 11:20 am
- Location: The Netherlands
- Contact:
Re: CEM Mark 1 Pinout
If the pinout matches, sure, why not. You only have to be sure the relay can cope with the current.
Robert.
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum