With the key off the three brake lights work correctly when the brake pedal is depressed. With the key on the two rear brake lights stay on all the time and the third brake light works correctly when the pedal is depressed. Also, The cruise control does not work. This all started after had the dash appart trying to repair a problem with the defroster. The brake light switch was replaced to no avail

Asked by Jan 25, 2014 at 07:19 PM about the Dodge RAM 150

Question type: Maintenance & Repair

With the key off the three brake lights work correctly when the brake pedal is depressed. With the key on the two rear brake lights stay on all the time and the third brake light works correctly when the pedal is depressed. Also, The cruise control does not work. This all started after had the dash appart trying to repair a problem with the defroster. The brake light switch was replaced to no avail

2 Answers

109,835

Check any of the harnesses under the dash that you might have had undone or might have bumped. I would also look for any pinched wires.

1 out of 1 people think this is helpful.
19,385

Follow the wires from the brake light switch up into the dash wiring. You may have to pull the dash back apart to find it.

1 out of 1 people think this is helpful.

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