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Posted on Jan 02, 2017
There are two possible cause of dim display.
On the deluxe trim level of the Impala the is light sensor. When the sensor mis-calibrated the light will not be at the level you want.
As a test,use a small flash light and aim to the sensor and see is the circuit act according it.
The dimmer light is a VERY CHEAP component. I will glow it out with compress air 1st. Turn the dial back and forth 20-30 time in rapid motion will help remove unwanted carbon,
Use a eletrical contact cleaner to clean all contacts.
Is the headlight in OEM specification?
After market headlights may draw more amperage and cause low power for smaller bulbs.
Posted on Jul 16, 2009
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