Rear turn signals stay on all the time, cant turn them off

What fuse are you pulling ?

Hazard Lamps
The hazard warning switch is part of the turn signal switch. The turn signal switch receives battery voltage at all times through the HAZARD SWITCH Fuse. When the hazard switch is placed in the HAZARD position, battery voltage is applied to the hazard lamp/turn signal lamp flasher. The hazard lamp/turn signal lamp flasher sends a turn signal flasher signal to the turn signal switch. The turn signal switch provides all of the turn lamps and turn indicators with the turn signal flasher signal, simultaneously flashing them on and off.

Turn Signal Lamps
The front turn signal lamps are made up of the front park/turn signal lamps and rear turn signal lamps. The front turn signal lamps flash with the rear turn signal lamps when a turn is initiated using the turn signal/multifunction lever. The turn signals will operate only with the ignition switch in the RUN position and will not operate during hazard flasher operation.
When the ignition is turned to the RUN position, battery voltage is supplied to the TURN SIGNAL Fuse. Battery voltage is then applied through the turn signal fuse circuit to the turn signal switch. When the turn signal switch is placed in the LH or RH position, voltage is supplied to the hazard lamp/turn signal lamp flasher. The hazard lamp/turn signal lamp flasher supplies a turn signal flasher signal to the turn signal switch. With the turn signal switch in the LH or RH position the corresponding turn signal indicator, rear turn signal, and front turn signal receive the turn signal switch signal and will flash. The front turn signals receive the turn signal switch signal from the turn signal switch via the BCM. The turn lamps are permanently grounded.

Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt.

sounds like flasher unit failure

Turn signals use what is called a flasher to regulate the speed at which the lamps turn on and off. Usually mounted in the fuse box. I have attached the replacement model for a 1996 Roadie. Should take all of 15 seconds to replace.

When its blinking fast look at both front and rear to verify which bulb isnt flashing. If the right works OK, then the flasher is OK. The flasher is INSIDE the front control module/integrated power module. If you cant find the problem, you may need a dealer to check it.

this ether sounds like you have bulbs burnt out in the rear, a fuse blowen, or a bad flasher

first check the fuses to see if any are blowen (usually a blowen fuse will lead to this issue)

then replace the bulbs that are not working

replace the signal light flasher (this is usually found in the fuse box in the cabin of the car or mounted to the steering colum)

i hope this helps ^-^

You need to replace the turn signal flasher, it's a cylinder shape and may be silver or gold in color. When it goes bad, the turn signals stop flashing. Good luck and keep me posted.

Defintely sounds like the turn signal switch is bad.
If the flasher was bad, your right blinker wouldn't work.

No Turn Signal Operation (blinker)The turn signal lights in your car are a basic electrical system that controls the front and rear blinker lights to alert the intended direction of the vehicle. We have listed some of the most common problems and repair troubleshooting tips below:
Troubleshooting Procedure
To start troubleshooting this problem:

• Turn the key to the on position (do not start engine)
  
• Inspect the system fuse located in the fuse panel and replace if needed. If you cannot find the location of the blinker fuse consult your owner's manual or an online repair manual
  
• When a blinker flasher fails it can cause blinker lights to say on, not blink, or not go on at all. To test the blinker system flasher, remove the flasher unit and insert a jumper wire between the two terminals. If blinker stays on in both directions without blinking, replace the flasher. If you cannot find the location of the blinker flasher consult your owners manual or an online repair manual.
• 
  

Have you tried replacing the flasher? You'd think neither side would blink if the flasher was bad but I've seen this happen and it turned out to be the flasher. You could swap the signal flasher with the 4 way flasher to verify that's the problem before going out and buying one. Should be a few bucks at the parts store.

it is inside, under dash, on left side is a plastic sound protector, mine had 3 screws holding it up, drop this down and straight in you will see a 1" round thing - this is the flasher, pull it out and replace with new one (there are two flat prongs that plug in). It appears this is a well guarded secret!