no speedometer or brake lights
#1
no speedometer or brake lights
I have a 1982 xjs and I recently noticed my speedometer stopped working and I was told I my brake lights aren't working. Is there a connection between these 2 failures? On my other vehicle, I the horn was on the same fuse as the tail lamps. I do have horn. Any opinions on where to start to find this problem?
#2
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 24,927
Received 10,988 Likes
on
7,215 Posts
I'm fairly certainly that your 1982 model has a cable driven speedometer. If that's the case I would check for a broken cable.
If you DO have an electric speedo (which I really think came out in 1984 or so) I don't see, from a quick peek, any tie-in to the brake light circuit. Verify what you have and post back.
As for the brake lights, have you checked that the fuse hasn't blown, and the end caps are not corroded?
If the fuse is OK, do you have voltage coming into the brake light switch? And coming out of the switch when the pedal is pressed? If 'yes', then go the the brake light failure unit (in the console, just aft of the gearshift as I recall) and jump the three green/purple wires together. If the brake lights now work then you know the BFU has packed in.
If the brake lights still don't work you have a problem downstream of the BFU
Cheers
DD
If you DO have an electric speedo (which I really think came out in 1984 or so) I don't see, from a quick peek, any tie-in to the brake light circuit. Verify what you have and post back.
As for the brake lights, have you checked that the fuse hasn't blown, and the end caps are not corroded?
If the fuse is OK, do you have voltage coming into the brake light switch? And coming out of the switch when the pedal is pressed? If 'yes', then go the the brake light failure unit (in the console, just aft of the gearshift as I recall) and jump the three green/purple wires together. If the brake lights now work then you know the BFU has packed in.
If the brake lights still don't work you have a problem downstream of the BFU
Cheers
DD
The following users liked this post:
anziobridgehead (10-31-2014)
#3
#4
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 24,927
Received 10,988 Likes
on
7,215 Posts
The following users liked this post:
anziobridgehead (10-31-2014)
#6
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 24,927
Received 10,988 Likes
on
7,215 Posts
The following users liked this post:
anziobridgehead (10-31-2014)
#7
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
KarimPA
S-Type / S type R Supercharged V8 ( X200 )
11
09-12-2015 08:15 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)