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Thank you for asking your question on JustAnswer. The most common cause of the problem is usually caused by a defective GEM (Generic Electronic Module), which controls the wiper operation, below is a list of the possibilities, if you need test procedures let me know and I will send them to you.
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Thank you for asking your question on JustAnswer. The GEM Is mounted on the back side of the interior fuse panel under tha dash on the drivers side of the vehicle, I would recommend testing before replacing, if you need test procedures as well as replacement instructions let me know and I will send them.
Thank you for the reply, the test procedures are below, there is only one GEM module, which is mounted on the back side of the interior fuse panel.
Below are the GEM replacement instructions (just click on the link below).
CLICK HERE FOR GEM REPLACEMENT INSTRUCTIONS