Hello Nation,
You have all been helpful in the past for my timing chain repair and I hope I can get some more assistance with a pesky brake light issue. First, it is an '07 Envoy 4.2L with 136K on the engine, running solid after my timing chain/cylinder head repair. As mentioned in the title, the driver's side brake light does not work. Passenger side and high mount stop work just fine. Here is what I have done to this point:
Replaced circuit board
Replaced bulbs
Replaced brake light switch
Removed trailer light plug and cleaned corrosion from prongs (wow, what a pain)
I thought for sure after seeing the amount of corrosion on the plug that would be the issue because it is the large white wire on the plug that leads to the frame, but alas, I was wrong. I probed the sockets on the circuit board with my tester and didn't get a light but blew the stop light fuse. I have checked the wire harness underneath and all connections to reverse lights, trailer plug, brake light connectors and everything looks good. I'm at a loss. Should I pull the trailer plug ground and give it a cleaning? Or just check all of the grounds in the rear of the Envoy on the chassis?
You have all been helpful in the past for my timing chain repair and I hope I can get some more assistance with a pesky brake light issue. First, it is an '07 Envoy 4.2L with 136K on the engine, running solid after my timing chain/cylinder head repair. As mentioned in the title, the driver's side brake light does not work. Passenger side and high mount stop work just fine. Here is what I have done to this point:
Replaced circuit board
Replaced bulbs
Replaced brake light switch
Removed trailer light plug and cleaned corrosion from prongs (wow, what a pain)
I thought for sure after seeing the amount of corrosion on the plug that would be the issue because it is the large white wire on the plug that leads to the frame, but alas, I was wrong. I probed the sockets on the circuit board with my tester and didn't get a light but blew the stop light fuse. I have checked the wire harness underneath and all connections to reverse lights, trailer plug, brake light connectors and everything looks good. I'm at a loss. Should I pull the trailer plug ground and give it a cleaning? Or just check all of the grounds in the rear of the Envoy on the chassis?
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