Rear automatic door will not open with key fob?

Tiny
DPG7466
  • MEMBER
  • 2009 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 265,000 MILES
When I try to manually open it, I can hear the latch unlock but relock and draw the door closed when I try to manually life the rear door.
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Wednesday, November 23rd, 2022 AT 6:54 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

This could be the result of a couple of things. First, are you able to make it work correctly from inside the vehicle? Is it only the FOB that is not working?

I ask because there is a liftgate module and a full-open switch in the circuit. The problem could come from either of the two.

Do me a favor if possible. What I would like you to have done is the scanning of the can-bus circuit. CAN stands for controller area network. Basically, all the different modules are tied together via a few wires. In this case, the liftgate module is my focus. This type of scan will identify codes regardless of the module storing them.

Here is a link showing how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know if that is something you can do or have done. Also, let me know if the door only malfunctions using the fob.

Take care,

Joe

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Thursday, November 24th, 2022 AT 7:49 PM

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