hd trailer package problem  Discussion in 'Towing & Trailer
Tech' started by drwdominance, Jun 12, 2010.    1. drwdominance
drwdominance Rockstar      Ok, 07 sierra classic which i have
had for about 8 months which has the trailer package. bought a
17ft expandable travel trailer. the electronic brake control
light is always on even without the trailer hooked up. so there
is a problem with either the brake control unit or the trailer
package.     my question is how hard is it to diagnose the
problem and what should i use to diagnose the problem?      any
insight?   2. 2COR517      2COR517 Epic Member 5+ Years 1000
Posts      Disconnect the harness to the trailer plug and see if
it goes out. What kind of controller is it?   3. drwdominance
drwdominance Rockstar      i will try that. it's a tekonsha
voyager.   4. 2COR517      2COR517 Epic Member 5+ Years 1000
Posts      If the light is on, there is a load on the
controller. Could be corrosion in the trailer plug, or a bent
pin.      I hated my Voyager.