engine and drivetrain Plugs in engine comparment

[LateApex]

I'm just about finished with my engine compartment wiring cleanup and I have another question.  There are two plugs in the corner below the fuse box.  One is a nine-conductor molex w/cover attached to the inner fender, the other is a round five-conductor with a boot that is hanging there.

 

Can someone ID these for me and, if possible, provide a pin-out?

 

TIA

[M3M3]

Pictures would help a lot.

9pin sounds like the diagnostic connector. 5 pin sounds like the wiper motor.

[LateApex]

Yes, the 9-pin is the diagnostics.  That was my first thought but knew there was no computer in the car.

 

Here is the round 5-pin.  It runs through the firewall on its own pigtail.

[Simeon]

The round one is for the wipers. Might not help with the pinout too well but here is an extract from a wiring diagram. The wire colours will identify the pins for no 23.

As for the diagnostic plug http://www.bmw2002faq.com/topic/125382-my-2002-diagnostic-tool-demo-wunderbox/ if you look for posts by PatAllen, pretty sure he gives the pin out somewhere.

[TobyB]

That plug doesn't look like the late wiper motor to me-

 

can you pull the boot back and expose the connector shell?

 

t

[LateApex]

If the round plug is my wipers, I'm more confused.  In the pic below you will see a whitish round connector below the booted empty round I'm asking about.  The whitish one is connected to my wiper motor. 

 

[LateApex]

OK, the center socket is empty so it is only a four conductor.  The wire colors are brown, brown/green, white/blue and I think all white?

 

[Simeon]

I take that back. Now I can see the scale of it (and seeing the wiper plug in the rear of one of the other shots) leads me to ??

 

Aftermarket?

[AustrianVespaGuy]

That is most definitely a socket for a relay, and if the center is empty, then it's a single-pole/single-throw (or SPST) relay.  (5 terminals would make it a single-pole/double-pole, or SPDT relay).  Though I must admit, off-hand I can't name a relay that lives up by the firewall like that.  Just to quickly verify, do your headlights, high beams, horn, starter, and electric fuel pump (if equipped) all work properly?  That's the only relays used on a 2002 as far as I can remember.  If all of those things still work, let me know and I'll dig more deeply through the wiring diagrams to try to figure this one out!

-Carl

[LateApex]

It goes through the firewall.  Wiring colors look OEM.   I'll try and trace it tomorrow.

[2002]

The connector might be for the mileage counter to give a request to inspect the smog equipment, especially the thermal reactor.  Most owners have removed the mileage counter box and replace the speedometer cable with a single piece.

[M3M3]

The connector might be for the mileage counter to give a request to inspect the smog equipment, especially the thermal reactor.  Most owners have removed the mileage counter box and replace the speedometer cable with a single piece.

knowing what year the car is would help.  

[2002]

Some pictures of the box and connector on this site:

http://www.bimmerforums.com/forum/showthread.php?1772753-EGR-service-light

[LateApex]

The car is a '76.  I think 2002 has it.  The connector (and location) match the picture in his link.  I suspect I can trace and delete this wiring.

 

Thanks for all the input.

[2002]

Some of the wires go up to the box on the top of the dash board that has the seat belt warning light.