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Old 12-02-2015, 08:49 AM
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Rain Sensor Module for 2002 Grand Cherokee Limited

This is my first post and I would like to thank all those folks that have posted previously for all the extremely helpful, valuable information made available to everyone. My 2002 Grand Cherokee Limited has a wiper delay that doesn't work. The wipers wipe once and then start wiping constantly. Based on other posts I tracked to the rain sensor module (didn't even know I had one). Found the circuit board was burned badly. More bad news is Chrysler no longer carries or can order this part. Do any of you good folks know an after market supplier that does? If not that does anyone have a pin out of the module connector itself so I can jumper the connector so it looks it is seeing rain. Thanks so much for your help.

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Old 12-02-2015, 09:24 AM
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Re: Rain Sensor Module for 2002 Grand Cherokee Limited

Welcome to the garage.
Did you try a local junk yard or maybe even e-bay?
Attached the only schematic i could find for the rain sensor. Seems that it will send its signal via the PCI data bus to the BCM.
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File Type: pdf Rain sensor.pdf (215.0 KB, 2 views)
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Old 12-03-2015, 03:26 PM
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Re: Rain Sensor Module for 2002 Grand Cherokee Limited

Thanks so much for the schematic. Can you tell me where you found it? I've looked on e-bay but nothing yet. I'll be checking out the junkyards soon. Thanks again.
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Old 12-03-2015, 08:15 PM
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Re: Rain Sensor Module for 2002 Grand Cherokee Limited

I have the factory service manual, a must have if you want to do your own maintenance and/or trouble shooting.
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