Wiper motor Extremely cold here wiper blades stopped working. Can still hear motor. But blades wont move. While driving blades went erratic on the windshield then stopped

If you can hear the rear wiper motor working but the wiper is sticking and not moving properly, there are several potential reasons for this issue. Here are some steps you can take to troubleshoot and resolve the problem:

1. Check for Obstructions: Inspect the area around the rear wiper blade for any obstructions or debris that might be preventing smooth movement. Clear away any leaves, twigs, or other materials that could be hindering the wiper's motion.
2. Wiper Arm and Blade Inspection: Examine the rear wiper arm and blade for any damage or signs of wear. A damaged wiper arm or blade might be causing the sticking issue. If there are visible issues, consider replacing the wiper blade assembly.
3. Lubricate the Wiper Mechanism: Apply a silicone-based lubricant to the wiper pivot points and joints. This can help reduce friction and facilitate smoother movement. Be cautious not to use excessive lubricant, as it may attract more dirt and debris.
4. Check Wiper Motor Linkage: The wiper motor is connected to the wiper arm by a linkage. Check the linkage for any loose or damaged connections. If the linkage is damaged, it may need to be repaired or replaced.
5. Inspect Wiper Motor Operation: With the rear wiper turned on, observe the movement of the wiper motor linkage. If the motor is working but the linkage isn't moving correctly, there may be an issue with the linkage assembly.
6. Wiper Motor Replacement: If all else fails and the problem persists, the wiper motor itself may be faulty. In such cases, replacing the wiper motor may be necessary.
7. Professional Inspection: If you are unable to identify and resolve the issue on your own, or if the problem is related to internal components, it may be best to seek professional assistance. A mechanic or automotive technician can perform a more detailed inspection and provide a more accurate diagnosis.

Remember to exercise caution when working around moving parts and electrical components. If you're unsure or uncomfortable performing these steps, it's advisable to consult with a professional mechanic or take your vehicle to an authorized service center for further assistance.

Remove the cowl panel in front of the windshield and check the wiper transmission, it may be broken or the nut that holds it to the wiper drive motor has worked loose.

Can you move the wipers by pulling on them? If you can and they easily move, the wiper linkage is disconnected. If you can hear the motor run and the wipers are inoperable, suspect a seized wiper pivot

linkage that connects the motor to the arms, stripped or loose.

Your wiper motor or wiper transmission may be bad. If you can hear the wiper motor running, but the wipers don't move, your wiper transmission is bad. If you can't hear the wiioper motor, and you're sure all fuses are good and all contacts are solid, your wiper motor is toast.

More than likely the wiper transmission has come off the motor drive shaft, pull the motor and check this.

Sounds like you need a new winshield wiper motor,if you can hear the motor but the blades wont move try moving them by hand while the motor is going mybe you will get lucky

1. Open Hood.
2. Remove wiper arms by removing cap nuts. they are a tight fit . there is a puller for this.
3 Remove cowel cover . once cover is off you will see the wiper motor and transmission assy. Possibly a snap joint wore out oa nut holding motor drive arm in place loosened up.

Turn the wipers on,and when they stop,peck on the wiper motor and see if they will come on.If they do replace the wiper motor,If they do not,replace the wiper switch.

the wiper arm assembly is stripped for the knurled knob that is sits on.  replace the wiper arm with a new one.