1997 Mazda Truck Brake light / Right rear signal issue

Tiny
DARRYL_PAUL
  • MEMBER
  • 1997 MAZDA TRUCK
  • 6 CYL
  • 2WD
  • MANUAL
  • 90,000 MILES
When I have the right signal on and depress the brakes the signal stops. Also the right signal indicator light goes on when I use the brakes. The signal will work fine if the breaks are not depressed. Is this a short? Bad ground? How do I located it an fix? Or could it be a relay or fuse?
Sunday, March 8th, 2009 AT 10:23 AM

5 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok well it could be either the brake light switch or the turn signal comination switch. If you have a digital multi meter then we can run a couple of test to check. Let me know if you have a meter and we will go from there.
Was this
answer
helpful?
Yes
No
Sunday, March 8th, 2009 AT 11:04 AM
Tiny
DARRYL_PAUL
  • MEMBER
  • 7 POSTS
I will go pick one up today. Let me know what I have to do.

PS if the "turn signal comination switch" is the one mounted on the steering column I have already changed this.
Was this
answer
helpful?
Yes
No
Sunday, March 8th, 2009 AT 11:08 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok then the combo switch is new. Does this have trailer light connectors under it? Are the wires all good? It was an exact fit type wasn't it?
Was this
answer
helpful?
Yes
No
Sunday, March 8th, 2009 AT 3:46 PM
Tiny
DARRYL_PAUL
  • MEMBER
  • 7 POSTS
No trailer light connectors or harness.

Flasher is new also.

If its a wiring problem how do you suggest I locate it. I have a digital multimeter.
Was this
answer
helpful?
Yes
No
Saturday, March 14th, 2009 AT 10:27 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok does this do this if the headlights are on? See the system is tied together at the park light relay and the headlight switch. If you would check fuse number 3 make sure it is good. The grounds are all tied together at the licence plate light on the left side so make sure that is clean and has a good contact. Lets start there and see what you find. Get back to me ok.
Was this
answer
helpful?
Yes
No
Saturday, March 14th, 2009 AT 7:30 PM

Please login or register to post a reply.