XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

1989 XJS Bosch Alternator Wiring Please Help

Thread Tools
 
Search this Thread
 
  #1  
Old 01-20-2014, 05:18 PM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default 1989 XJS Bosch Alternator Wiring Please Help

This and brakes, and, my car is running and driving! A mouse, or mouses, chewed the alternator wiring. It is a Bosch with load dump module. I have 2 loose ends, the "exciter" wire that runs down the fender to the alternator, from the dash light, and, one end of the load dump module. I think that the load dump is just grounded to body, correct? Also, I hope I have my ground wires on the proper terminal. The ground wires are on the terminal just to the right of the B+ terminal, which has the starter wires on it. So, I am asking, where does the "exciter" wire go, where does the end out of the load dump module go, and, what terminal do the ground wires go on? Please, help, I can't find this info anywhere. Thanks.
 
  #2  
Old 01-20-2014, 05:57 PM
Gus's Avatar
Gus
Gus is offline
Veteran Member
Join Date: Jul 2008
Location: Berlin Md.
Posts: 11,341
Received 2,207 Likes on 1,700 Posts
Default

I have a oneline for a 1989 XJS listed on my page I hope that helps.

Link JagRepair.com - Jaguar Repair Information Resource
 
The following users liked this post:
gthawk1 (01-20-2014)
  #3  
Old 01-20-2014, 07:00 PM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default

That is nice! There is so much info here. Well, it clearly shows. The dump load module and the "exciter" wire both go to the B+ terminals. I can't wait to go work on the Jag. I'll post results here when I finish. THANKS GUS!
 
The following users liked this post:
Gus (01-20-2014)
  #4  
Old 01-20-2014, 07:03 PM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default

Oops, I mean D+, sorry, too "excited" myself.
 
  #5  
Old 01-21-2014, 12:50 PM
rgp's Avatar
rgp
rgp is offline
Veteran Member
Join Date: May 2010
Location: warwick
Posts: 1,483
Received 379 Likes on 285 Posts
Default

try this link, although I don't have a 'w' on mine
Bosch(?) alternator wiring query - International Forum - LR4x4 - The Land Rover Forum
 
Attached Thumbnails 1989 XJS Bosch Alternator Wiring Please Help-alternator.jpg  
  #6  
Old 01-22-2014, 07:51 AM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default

RGP, yes, that's what mine looks like. I see a tang on the side of the D+ terminal, with D+ written on IT. Since I have 2 ground wires on the D+ terminal near the B+ terminal, perhaps the "exciter" wire goes on this tang. Does it matter? Thanks.
 
  #7  
Old 01-22-2014, 08:52 AM
rgp's Avatar
rgp
rgp is offline
Veteran Member
Join Date: May 2010
Location: warwick
Posts: 1,483
Received 379 Likes on 285 Posts
Default

well mine has 2 push on spade terminals that go on the large 'B' terminal in picture they both run to the starter motor in a conduit bolted to the side of the engine, although you may only have one on yours, the warning light is a small push on 'D+' and goes to the side firewall (flitch).
I have no 'W' terminal. I don't know the word exciter but I only have the three wires and they just use the 2 terms. surrounded by black plastic
hope this helps
the best pic. I can get of it sorry about the claret
 
Attached Thumbnails 1989 XJS Bosch Alternator Wiring Please Help-100_1073.jpg  

Last edited by rgp; 01-23-2014 at 03:28 AM.
The following users liked this post:
gthawk1 (01-22-2014)
  #8  
Old 01-22-2014, 07:53 PM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default

Thanks for your help RGP and Gus. As soon as it warms up here, it is 10 degrees F, I will hook the wire up to the D+ terminal. I'll post the results.
 
  #9  
Old 01-28-2014, 07:07 AM
gthawk1's Avatar
Senior Member
Thread Starter
Join Date: Nov 2013
Location: Shamokin PA
Posts: 166
Received 18 Likes on 15 Posts
Default

Discouraging session. I hooked up the wires, the light on the dash that has a battery on it came on, and, the gauge indicates 12 volts. My only thought is why did I double ground it? The dump load box is grounded, plus, there is a ground from the same terminal to the same body ground bolt. Wouldn't this circumvent the dump load module? Or, a bad alternator. Or a bad dump load module. ????? Any thoughts would be appreciated, you guys got me this far.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vinny jones
XJS ( X27 )
4
04-28-2021 08:14 AM
mbergen
XJS ( X27 )
7
10-23-2019 10:26 PM
vinny jones
New Member Area - Intro a MUST
9
10-05-2015 07:20 AM
1100me
XJS ( X27 )
2
09-07-2015 06:26 AM
jaguarbill
XJ XJ8 / XJR ( X308 )
0
09-05-2015 11:43 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: 1989 XJS Bosch Alternator Wiring Please Help



All times are GMT -5. The time now is 01:13 AM.