Brake Lights not working
#1
Newbie
Thread Starter
Join Date: Feb 2012
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Brake Lights not working
My right rear brake light is not working!! The driving lights work fine. It's not the socket. I removed the short harness and tested at the plug behind the back right rear panel. At this plug everything works except the brake light when I depress the pedal. The left rear works just fine.
Suggestions on what to check?
Suggestions on what to check?
#3
CF Veteran
My right rear brake light is not working!! The driving lights work fine. It's not the socket. I removed the short harness and tested at the plug behind the back right rear panel. At this plug everything works except the brake light when I depress the pedal. The left rear works just fine.
Suggestions on what to check?
Suggestions on what to check?
If it doesn't work at the harness, it's not gonna work at the bulb no matter how many times you change it. On mine ('89), the right side tail light crosses over the roof and connects to the harness behind the rear quarter on the driver's side. I was having the same problem Smalley was and traced it to a botched trailer light wiring job at the harness behind that driver's side rear panel.
Ultimately, you'll have to use a test light or a multi-meter to trace it back in the direction of the brake light switch (under dash), there can be many causes... you'll probably know when you find it
#4
CF Veteran
Join Date: Aug 2010
Location: Canton, MI
Posts: 8,357
Likes: 0
Received 82 Likes
on
67 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Step 1: Fill out the info on your rig. Cherokees were produced for a decade-and-a-half and, believe it or not, they aren't all the same.
If it doesn't work at the harness, it's not gonna work at the bulb no matter how many times you change it. On mine ('89), the right side tail light crosses over the roof and connects to the harness behind the rear quarter on the driver's side. I was having the same problem Smalley was and traced it to a botched trailer light wiring job at the harness behind that driver's side rear panel.
Ultimately, you'll have to use a test light or a multi-meter to trace it back in the direction of the brake light switch (under dash), there can be many causes... you'll probably know when you find it
If it doesn't work at the harness, it's not gonna work at the bulb no matter how many times you change it. On mine ('89), the right side tail light crosses over the roof and connects to the harness behind the rear quarter on the driver's side. I was having the same problem Smalley was and traced it to a botched trailer light wiring job at the harness behind that driver's side rear panel.
Ultimately, you'll have to use a test light or a multi-meter to trace it back in the direction of the brake light switch (under dash), there can be many causes... you'll probably know when you find it
#5
Newbie
Thread Starter
Join Date: Feb 2012
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
94 two door, 4.5" RC short arm X Flex, 33" x 12.50" x 15" Mud Kings, 4.0L, AW4/NP231
I did change the bulb. on the original bulb the glass was loos from the metal so I replaced the blub and still no workie. Sounds like I am going to have to do some tracing back
I did change the bulb. on the original bulb the glass was loos from the metal so I replaced the blub and still no workie. Sounds like I am going to have to do some tracing back
#6
CF Veteran
Join Date: Dec 2011
Location: Pasadena, MD
Posts: 4,006
Likes: 0
Received 1 Like
on
1 Post
Year: 1987
Model: Wagoneer
Engine: Renix 4.0
Step 1: Fill out the info on your rig. Cherokees were produced for a decade-and-a-half and, believe it or not, they aren't all the same.
If it doesn't work at the harness, it's not gonna work at the bulb no matter how many times you change it. On mine ('89), the right side tail light crosses over the roof and connects to the harness behind the rear quarter on the driver's side. I was having the same problem Smalley was and traced it to a botched trailer light wiring job at the harness behind that driver's side rear panel.
Ultimately, you'll have to use a test light or a multi-meter to trace it back in the direction of the brake light switch (under dash), there can be many causes... you'll probably know when you find it
If it doesn't work at the harness, it's not gonna work at the bulb no matter how many times you change it. On mine ('89), the right side tail light crosses over the roof and connects to the harness behind the rear quarter on the driver's side. I was having the same problem Smalley was and traced it to a botched trailer light wiring job at the harness behind that driver's side rear panel.
Ultimately, you'll have to use a test light or a multi-meter to trace it back in the direction of the brake light switch (under dash), there can be many causes... you'll probably know when you find it
#7
CF Veteran
Smalley, I believe both brake lights are fed from the driver's side rear quarter panel harness rather than each being a home-run lead all the way to the fuse panel/brake switch so you should begin your search at the harness connector behind your spare tire mount. That should limit the headache because you're only going from there to the other side of the hatch rather than from all the way up front.
Trending Topics
#8
CF Veteran
Sorry, that wasn't super clear. There is a single lead [I believe] from the brake switch to that rear quarter panel harness plug (behind spare tire mount) and from there it splits off, one lead to driver's side brake light, one to passenger side. If one light is working and the other isn't then your problem lies somewhere between that harness connection and the dead socket.
Check the plug contacts for corrosion and water damage, clean if necessary, apply dielectric grease to plug contacts before re-connecting. Check for bad splices and botched PO MacGyvering.
Check the plug contacts for corrosion and water damage, clean if necessary, apply dielectric grease to plug contacts before re-connecting. Check for bad splices and botched PO MacGyvering.
Last edited by F1Addict; 11-03-2012 at 04:02 PM.
Thread
Thread Starter
Forum
Replies
Last Post
seansr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
11-15-2022 06:08 AM
Aryl
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
04-10-2019 09:07 AM
BayArea93xj
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
06-11-2016 10:43 AM
rusty_bucket
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
08-29-2015 06:42 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)