General Boards > General Discussion

Turn and hazard lights not working

(1/5) > >>

Jose Rita:
I have a 2002 Patriot with an electrical gremlin.  After connecting a trailer, I lost turn and hazards lights. Disconnected trailer turn/ hazard lights dont work.   Running lights and brake lights work.  I have been following suggestions from prior posts but nothing so far.  I changed out the flasher relay under dash checked all bulbs and checked the 20 amp breaker in electrical bay (cb4).  All to me appear fine.  I am at a loss, any suggestions would be greatly appreciated as we have a trip planned soon.

Steve Huber Co-Admin:
Jose,
It sounds like you may have lost 12v to the turn signal and hazard switches. Check terminals 2 & 3 on TB1 in the front electrical bay (L&R Front turn signals) and TB1 13 &14 (L&R Rear Turn and Brake signals).  If you have a switched signal at those terminals the switches are getting power and the problem is between them and the bulbs. Also check around the trailer connector for a possible short, etc. in case a wire came loose when you connected the trailer. Not clear to me where fuse (if any) would be located. Also, check the bulbs to be sure you don't have a bulb that is shorted to ground. Disconnecting the connector at the fixture should accomplish this.  Diagrams for 2002-03 Patriot are in Coach Assist on the BAC Club website.
Steve

Eric Maclean:
Jose
The ha zards and turn signals are both controlled through the turn signal switch in the steering column.
First thing to do is trace the power path from the beaker to the turn signal switch .
Use the wiring diagrams found in the coach assist section as a guide to help you determine the power path.

With that said the turn signals switches have a habit of developing problems with the hazard switch which will over ride the turn signal portion of the switch.
But before I went down that rabbit hole I would make sure I had power to the turn signal switch harness plug at the base of the steering column.

Hope this helps
Eric

Eric Maclean:
Jose
I believe the 2002 coaches did not have separate rear turn and brake bulbs which means the brake and turn signals both use the same bulb and there fore the same wiring to operate them the point being if this is the case if the brake lights work the wiring path from the turn signal switch to the rear of the coach is ok.
The turn signal switch is feed power from the circuit breaker which Steve mentioned earlier through the flasher to the turn signal switch .the brake lights have there own power supply breaker and brake light switch that feed the turn signal switch.
At this point it appears your problem is lose of power to the turn signal feed to the column id suggest checking the breaker first using a 12 volt test light and from there move to the flasher base if you have power at the flasher base temperately bypass the flasher with a piece of wire and see if you can get any light at the turn signals( with either right or left turn signal turned on) of course they won't flash but if they light you have proved the wiring and the switch and that the flasher is faulty.
If this is the problem replace your existing flasher unit with an electronic ( time based flasher ) as they are less suspectable to current / load variation . And make sure there are no shorts in you trailer wiring before trying to plug it back in.

Hope this helps
Eric

Jose Rita:
I did check terminals 2,3,13 and 14… no power with  turn switch activated. I have 12v power coming up from the flasher breaker to the relay under dash. I have checked continuity to tail lights and front directionals.  Continuity is good and when I supply 12v to them the individual light will come on thru terminals. I was hoping that there would be some hidden 12v fuse somewhere but cant find them. I am looking at the switch on the steering column next.  Not sure how to check it, just looking for obvious stuff.  On  a side note, I had asked my wife if she noticed the directionals working when I connected the trailer; I turned the hazards on and stepped out quickly not paying attention. She was did nit notice.  And, while connecting I was focused on the connector, only looking at the lights afterward…shame on me.  So this problem may be attributed to something other than the trailer connection.

Thank you for the responses

Navigation

[0] Message Index

[#] Next page