Rear brakeing lights staying on no cruse control and ads c220 2006

check fuses and relays--have vehicle scanned most auto stores offer this service for free if theirs a pending fault cruise may not work -- possible switch malfunction-check brake lights including 3rd brake light relays and brake light switch -

Could be a bad brake switch. Check and see if you have brake lights. You can pull codes from the BCM. Takes a scanner though.

might you have the wrong switch , doesnt mean its right if it just "fit"

alldata dot come,
read the 3 sections on topic, its all there.

Well usually when the third brake light works and the others don't, the problem is in the turn signal switch. The center brake light is separate from the other two as far as circuits go.
The thing that puzzles me is the cruise. It could be something else, because the only way a faulty brake light switch would kill the cruise control is if the switch was stuck on.
I think I would check the circuits in and out of the turn signal switch.

Well, it could mean that the emergency brake has not been fully released.The ABS system light is on if something has occurred within the ABS system. Something faulty may have happened there, get it checked out!

this is either a bad bulb or a bad ground. Change brake bulb & check socket too.

go to villager-quest yahoo group for more help

These 2 symptoms indicate the brake switch above the brake pedal is shorted or stuck closed. Try unplugging the connector from the switch. If this resolves the problem, replace switch. Let us know if you have more questions.

Your battery is not charging well. Probably the battery terminals are corroded. When you run the engine RPMs up high, the voltage goes up, overcoming the resistance of the corrosion and charging the battery, which allows the circuits listed above to operate properly.

check to make sure that all the the bulbs in the rear are working,even the third light