Jump to content

Trailer Stop/Turn Signal Lamp Relay

Recommended Posts

I own a 2015 Chev. Silverado 2500HD.   So here is my problem.

I have no left Trailer Stop/Turn signal.  The truck's left Stop/Turn signal light (tail light) operates normally.

The trailer stop/turn signal is provided through a relay (my schematic calls it KR63L) contact.  The relay contact's output is connected to fuse F14 (10A).  The other fuse terminal is connected to the trailer connector.

The fuse is ok.  When the left turn signal is on there is no voltage on either of F14 terminal.

I hope my problem is the relay.  The schematic shows KR63L and KR63R to be located on the same fuse block as the F14 and F17 (right Trailer Stop/Turn fuse).  My fuse cover shows both F14 and F17 fuses but does not indicate the relays.

Can someone tell me find the Trailer Stop/Turn relay KR63L and KR63R? 





Link to comment
Share on other sites

  • 2 years later...
  • 8 months later...
  • 8 months later...

The KR63R and KR63L are integrated onto the circuit board of the main fuse block.  Gm says they are not servicable but I've seen it done on YouTube.  To fix the trailer turn signal lights and brake lights, it will need replaced or repaired.  Check out this YouTube repair for the winsheild wipers relay. 



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.