Question about 2003 Cadillac CTS
LOW BEAM WORKS BUT THE DIMMER SWITCH COMES ON BUT THE HIGH BEAM WANT WORK AND THE HEAD DASH LIGHTS VERY DIM
YOUR DIMMER SWITCH HAS SHORTED OUT CAUSING IT TO STAY IN THE CLOSED POSITION THE DIMMER SWITCH OR ACTUTATOR IS LOCATED UNDER THE STEERING WHEEL PANEL JUST ABOVE THE BRAKE PEDAL ON THE COLUME CALL OR GET ON LINE TO AUTO ZONE AND LOG ON AND YOU CAN GET A PRICE CHECK FOR A DIMMER SWITCH ACTUATOR LISTED UNDER PARTS REPLACEMENT IN THE ELECTRICAL SECTION
Posted on Mar 27, 2014
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Posted on Jan 02, 2017
SOURCE: low beam head lights won't work
Check your relay switches under the hood fuse box. They should be a light grey from factory, they are about 1 x 1" in size and there are a few in there. Pull one out at a time and if they look brownish or yellowing replace. Go to Napa or Auto Zone for $15.99 a peice that most likely will fix it.
Posted on Mar 24, 2009
The dimmer switch operates an actuator that pushes on a rod and then that rod goes down the steering column and pushes on the actual dimmer switch which is near the bottom of the steering column, u will need to remove the trim under the steering column and then the must remove the 2 nuts that hold the column to the bottom of dash, carefully lay the column on the seat and then u will have access to the dimmer switch, actuate the switch and see if the rod moves, if it doesn't then u must replace the dimmer switch rod actuator plastic piece at the top of the column, if it does move up and down either the dimmer switch has come loose or the dimmer switch is defective.
Posted on May 19, 2009
No the dimmer switch doesn't change high/low beams just interior lights. Did you try changing the bulbs?
Posted on Mar 04, 2010
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