At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
There should be 12 volts on the orange wire at the bulbs. The switch controls the ground side of the circuit. There should be 12 volts on the blue w/white wire at the switch. The switch will ground that wire and complete the circuit and the cargo lights will turn on.
to check the switch you would unplug it and check for continuity between the pins that the blue w/wire wire and black wire go to.
I had an issue like this one on a 2007 Colorado. I assume you mean the turn signal indicator inside the truck lights up. It was a bad bulb. think it was the turn signal bulb on the side that is lighting up. As for the gear indication being dim there is more than one bulb that lights them up and one may have blown. I hope this helps.
Brake light on top works tells me the switch at the pedal is ok. Turn signals working tells me that the turn signal filaments have power.
I would try changing the bulbs and if that doesn't work have an electrical shop trace the wires and check for power on the brake light circuit in the back.
I've worked on these the first drove me crazy. its the turn signal switch every thing runs thru these. head lights, turn signal, brakes. except the third brake light. it runs directly from the brake switch. go figuare
Check at the light socket in the rear, where your lights don't work. You need a test light or a voltage meter, and check to see that you have a groun there, power for your parking light, and power to the brake light. You should have power for the parking lights seeing that it works, and a ground. Just verify that your power for the brakes is getting to the bulb, or not. Just a good place to start.
And you are correct that if the third brake light works (top) your brake light switch is fine.
I just had the same problem on my '04 Silverado. All it was was corrosion in the socket/bulb. Put some dialectic grease on both the bulbs and worked them in and out a couple of times and now they work fine. Was weird that they both went out suddenly and together but I guess they are made exactly the same.
×