need! electrical guru. wiring diagram - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 4 Old Jul 16th, 2008, 9:21 pm Thread Starter
Senior Member
 
JTEC's Avatar
 
Join Date: Feb 2008
Location: Mooresville, NC,
Posts: 108
need! electrical guru. wiring diagram

Having an issue with reverse, everything works but will not engaging. I have been chasing wires. According to the wiring diagram it shows a black wire from the starting relay to the load relay. I do not see it going to any other item such as a connector or part. Per the wiring diagram it shows it to be directly wired

Checking it with an ohm meter from the starter relay to the load relay I am showing an open. I would think I should have continuity. Maybe showing a couple of ohms at the most.

Could this be the reason the starter will not engage when put in reverse?
I have continuity from the reverse switch.

Any suggestions?

Should I run a new lead from the starter relay to the load relay pin.

I have tried to trace the wires ( two)from the starter relay but they are in a plastic cover and seem to run to the rear of the bike under the rear seat.

Thanks in advance for the help

Al

Al
1977 R75/7
2001 K1200LTC sold
2009 K1200 LT :sold
2014 R1200RT:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JTEC is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old Jul 16th, 2008, 10:15 pm
Senior Member
 
bowlesj's Avatar
 
Join Date: Jun 2005
Location: Glen Alpine, NC, USA
Posts: 1,431
Re: need! electrical guru. wiring diagram

I do not see that wire in particular preventing the starter from turning while in reverse. Now if the connection where that same wire goes from the start relay to connector just before the reverse module is open, yes, no spinny. Doesn't explain your measured open condition though.

Regardless, have you checked all the interlocks? Clutch switch open? I believe a clutch switch stuck closed would only show up while trying to engage cruise, reversing or able to start in gear.

Since the neutral indicator gets its signal from the reverse module you should be good there if showing green. If your reverse light comes on, the reverse switch is good.

So, yep, I'd guess if all visual indicators are good, verify clutch switch open, a good ring from the ground side of start relay to who knows what pin on the reverse module (sorry no help there) If there are no breaks in the power to the starter from the relay, I might be worried about the reverser module.

I don't believe the speed sensor will fail in such a way as to not allow any reverse, but this can be verified by disconnecting the connector for the speed sensor on the right rail. The reverser will back a few feet and stop with the sensor out of the system.

Good luck, and JZ will probably be able to help soon.

John

2004 - LT - Anthracite
bowlesj is offline  
post #3 of 4 Old Jul 17th, 2008, 7:09 am
Senior Member
 
bowlesj's Avatar
 
Join Date: Jun 2005
Location: Glen Alpine, NC, USA
Posts: 1,431
Re: need! electrical guru. wiring diagram

Upon further review, it appears the clutch switch has no effect on the reverser. Mine reverses with clutch in or out. Not sure why that's shown in the system. Hoping your problem is the open circuit you found.

John

2004 - LT - Anthracite
bowlesj is offline  
 
post #4 of 4 Old Jul 17th, 2008, 7:40 am Thread Starter
Senior Member
 
JTEC's Avatar
 
Join Date: Feb 2008
Location: Mooresville, NC,
Posts: 108
Re: need! electrical guru. wiring diagram

I bought the bike used and reverse has never worked. I have the bike opened up for surgury. Mostly exploratory and to learn the bike. Trying to fix some of the minor issues.

I checked the switch and it is good. When putting it into reverse everything does as it should but it will not move rpm increases, light is on but no movement.

As for the balck wire I can not see it going anywhere else on my wiring diagram ( Clymer manual) If there is a better wiring diagram and information on location of all the connectors I would shell out my second born!!! ( he eats alot so you may not want him)

Thanks for the help
Al

Al
1977 R75/7
2001 K1200LTC sold
2009 K1200 LT :sold
2014 R1200RT:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JTEC is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Center Stand Wiring Diagram Help?? SeaMarshal K1200LT 7 Mar 21st, 2009 2:05 am
wiring diagram mlempenau K1200LT 1 Apr 8th, 2008 10:57 am
Electrical diagram advise, please pozo_izquierdo Batteries, Chargers, & Electrical 2 Nov 18th, 2006 9:49 am
Service manual and wiring diagram Brunoaro K1200LT 1 Jan 30th, 2006 5:44 am
HID Wiring Diagram check Dezrae Lighting 8 Nov 4th, 2005 9:59 pm

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome