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The Jeep Grand Cherokee is a mid-size luxury SUV produced by the American manufacturer Jeep. While some other SUVs were manufactured with body-on-frame construction, the Jeep Grand Cherokee has always used a unibody chassis.

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2005 jeep grand cherokee rear wiper not working right

I have a 2005 Grand Cherokee. Something is up with the rear wiper; it works just fine if the switch for the rear wiper is already in the "on" position when I start the truck. If the switch is "off" and I try to use the rear wiper after the truck is started...nothing. Doesn't make any difference what speed it is at . It also seems to only work that way if it is warm out, when it is cold it wont work at all.

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@gmz26 odd failure nd it could be related to a bad motor (since it seems to worsen when it is cold) as well as bad switch. I attached the rear wiper section from the SM and it will tell you how to check the functions for the switch etc. for your Jeep. Of course you also need to check the wiring. Jeep GC Rear Wiper System

“The rear wiper module electronic circuitry controls the switching of battery current to the rear wiper motor brush, which controls wiper motor operation.

The intermittent wipe and wipe-after-wash features of the rear wiper and washer system are both provided by the rear wiper module electronic circuitry.

The rear wiper module electronic circuitry also monitors the liftgate flip-up glass ajar switch and will park the rear wiper blade off of the glass any time it senses that the liftgate flip-up glass is ajar,

This is an interesting part and needs to be checked “However, if the ignition switch is turned to the Off position while the rear wiper is operating, the right multi-function switch control sleeve must be cycled to the Off position and back to the On or Delay position after the ignition switch is turned back On before the rear wiper will operate again.”

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