Question about 2008 Chevrolet Express

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Factory installed trailer hitch and wiring connector. The wiring connector is properly installed and connected. The harness runs to the front of the truck and to the fuse block. In the fuse block the spaces for the fuses marked for the trailer wiring are the same as empty, not used fuse spaces. There are no metal blades to contact the fuses.

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  • summitsystem Mar 08, 2009

    My trailer does not have electric brakes. These fuses are marked on the chart as 15 amps for the right and left turn sigs/stop lights. The running lights are powered through to the connector and do not have a separate fuse.

  • summitsystem Mar 09, 2009

    I have turned on the key and turned on the lights and turned on the turn signals and used GM special tool, part no. BRICK to push on the brakes. The only live pin at the connector is the running lights. There are spaces in the fuse block for left and right turn sig,/stop lights and also a 30 amp space for 12 feed to the trailer. On the 7 pin connector 12+ is the large center pole. These three fuse spaces will not hold a fuse. In the fuse block I can see metal contacts for the fuse on circuits that are in use. These  spaces do not have the metal contacts.

  • summitsystem Mar 09, 2009

    Thanks, but I paid over four hundred dollars for GM to install the hitch and the trailer wire harness specific to the van. I don't think I'll spend 20 bucks at WalMart to make it work.

  • Anonymous Mar 16, 2014

    where do you connect

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The trailer light harness should be live. If you turn the ignition switch to run and set the turn signal on you should be able to use a test light and watch it blink back at the hitch.
The fuse cavity you are looking at is a battery fuse feed for trailer brakes or trailer battery recharge.
Check the pig tail with a test light and let me know.
Regards,

Posted on Mar 08, 2009

  • Bruce Bracey
    Bruce Bracey Mar 09, 2009

    Sorry about that, I assumed you had the standard 4 pin connector. You are correct, the fuse panel should have blades to accept the various fuses. I would suspect the fuse block is incorrect. Not sure if it was incorrect from the manufacturer or was installed post production.

    I would return to the dealer and have them explain and repair the problem. You may have to request for the factory service engineer to get it resolved. Try the dealer first, if they cant do anything for you, ask for the factory service engineer or representative.

    Good luck.

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  • Expert
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That's because its to plug in for an electronic trailer brake controller

Posted on Mar 08, 2009

  • lee cowan Mar 09, 2009

    try to buy a trailer wire harness specific to you van you can buy them at wall mart for 20 dollars and they plug in under the back of the van to you tail light wiring harness. your van does not support fuses for the right and left that was a upgrade from the factory dumb i know. this should solve your problem

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