1997 elantra cruise control not working. I had 2 brake bulbs out but replaced them, all lights now work but still no c.c. Switch on dash illuminates but button on wiper arm no longer activates the c.c. How can I diagnose the problem? Thanks.

SOURCE: Brake lights won't go off

learned to trouble shoot this in school, it might be that your lights and or switch are backwards, that was usually the case we discovered to be the culprit, and be sure you have the right bulbs and not some random generic compatible with these model cars, those bulbs will not be compatible with the current going thru them, if this does not help, you might want to try to reinstall the original components to back track your work, unfortunetlly electronics on cars is very time consuming as we learned in class.....hope this works or helps you...shia

SOURCE: cruise control stop working can someone tell me how to fix myself

If all the brake lights are out it is likely your stop lamp switch is bad, it controls lights and cruse, and also supplies input to ecm/tcm. The old ones would just pop apart, you can put them back together but to replace the switch it is only 20-30 bucks. Try that.

SOURCE: need to replace dash board backlights - 2004 hyundai elantra

trying to do the same on my 01. ready to change the bulb but can't find it anywhere.
anyhow, here's how you do it:

remove the dash by taking out 2 screws behind the ashtray and 2 above the instrument cluster
begin prying off the dash from the ashtray up, when you reach the heater vents stop. next take a flat head screwdriver and pry off the dash from the left side with the door open. work left to right till you reach the heater vents and it'll come right off. you don't necessarily have to unplug any of the electric connectors if you don't want to, but you;ll have to reach around the dash while working. all you need to do now is remove the heater control unit via the 4 screws around it, then unplug the electric harnesses from the back of it. make sure you remember which goes where. the bulbs are the 3 white (or is it 2 white and 1 grey) circles on the back of the control unit. just turn them with a flathead screwdriver and turn it over and give it a little bump to get 'em to fall out (or grab 'em with a needle nose pliers if necessary). anyhow, that's how it's done, question is, where do ya find the bulbs?

PAUL MC G

• 1280 Answers
• Posted on Sep 10, 2009

SOURCE: 2003 hyundai elantra gls abs/tcs light on

unless you can discover what DTC (Diagnostic Trouble Code) has been recorded/set in the control module, it's anyone's guess.

Testimonial: "thankyou"

SOURCE: 01 Hyundai Elantra - Cruise Control Doesn't Work w/ Headlights On

I had same problem (cruise control/dashboard lights) for the past month with my 2000 Elantra. Replace the tail lights bulbs - my problem was caused by a problem with the double filament within the bulb. Essententially, there was a short when I turned on the lights or hit the brakes.

I did this last night and everything is working properly now.