Heater Control Light & Shifter Light - Team Camaro Tech
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post #1 of 5 (permalink) Old Dec 15th, 18, 03:46 PM Thread Starter
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Heater Control Light & Shifter Light

When stepping on brake peddle, the Heater Control Light. Console and Shifter Light comes on. The dash lights work perfectly. What is the possible cause, it just start doing this? Thanks for you help in advance.

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Last edited by rsb0719; Dec 15th, 18 at 04:44 PM. Reason: left out item
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post #2 of 5 (permalink) Old Dec 16th, 18, 12:54 AM
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Re: Heater Control Light & Shifter Light

Have you looked around the brake pedal and see if a harness (or wiring) is being moved whenever the pedal is actuated? Other than that I donít think those circuits are related to each other. How is the rest of your wiring? Newer, older harness?
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post #3 of 5 (permalink) Old Dec 16th, 18, 04:35 AM
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Re: Heater Control Light & Shifter Light

Yes, gray wire for dash lights and console lights.

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post #4 of 5 (permalink) Old Dec 16th, 18, 07:08 AM
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Re: Heater Control Light & Shifter Light

This most likely is a bad ground issue. When you apply the brakes, the brake lights come on which causes a higher current to flow in the ground return path (the path from the brake lights to the batteries negative terminal) and this current is finding a path through a bad ground connection then through the console and and shifter lights back up to the light switch and then to ground (when the light switch is in the off position). I'm guessing you will see the same problem when you turn on other high current circuits in the car for example turning the heater fan blower to high.

So the problem might be the center console connector or where this connectors ground is connected to the car's body. I don't actually have a 69 with a stock center console so I'm not sure where that ground connection is at but I'm sure someone here will know.


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post #5 of 5 (permalink) Old Dec 16th, 18, 08:57 AM Thread Starter
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Re: Heater Control Light & Shifter Light

Thanks, I will check all ground connections, once I find the problem I will let everyone know. May not be soon as it is too cold here, don't have a heated garage. Thanks again.

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