Brake light issues, switch not the problem
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 77
Likes: 0
From: Western WA
Year: 1989
Model: Cherokee
Engine: 4.0
1989 XJ laredo, automatic
My brake lights always are on when the battery is plugged in and the stop/hazard fuse is in. I have tried the following with no change:
- removed the switch and nothing changed, even jumped the switch connector.
- disconnected headlight switch
- removed the flasher tube (the one for left, right, hazard)
so should I be looking for a wire that a mouse bit through, or a relay?
My brake lights always are on when the battery is plugged in and the stop/hazard fuse is in. I have tried the following with no change:
- removed the switch and nothing changed, even jumped the switch connector.
- disconnected headlight switch
- removed the flasher tube (the one for left, right, hazard)
so should I be looking for a wire that a mouse bit through, or a relay?
Last edited by sansocal; Jul 5, 2011 at 03:52 PM.
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by sansocal
1989 XJ laredo, automatic
My brake lights always are on when the battery is plugged in and the stop/hazard fuse is in. I have tried the following with no change:
- removed the switch and nothing changed, even jumped the switch connector.
- disconnected headlight switch
- removed the flasher tube (the one for left, right, hazard)
so should I be looking for a wire that a mouse bit through, or a relay?
My brake lights always are on when the battery is plugged in and the stop/hazard fuse is in. I have tried the following with no change:
- removed the switch and nothing changed, even jumped the switch connector.
- disconnected headlight switch
- removed the flasher tube (the one for left, right, hazard)
so should I be looking for a wire that a mouse bit through, or a relay?
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 77
Likes: 0
From: Western WA
Year: 1989
Model: Cherokee
Engine: 4.0
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 77
Likes: 0
From: Western WA
Year: 1989
Model: Cherokee
Engine: 4.0
Yeah, I have ruled out the brake light switch by pulling it up, disconnecting it and jumpering it.
Thanks for the input
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