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Code PO870, where is the transmission fluid pressure sensor/switch "c" circuit located?

Tiny
MATTSTORMS42
  • MEMBER
  • 2008 DODGE CARAVAN
  • 3.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 338,000 MILES
Have trouble code po870. When I looked it up it said it is the "transmission fluid pressure sensor/switch "c" circuit. What does this mean? Where is the location of this sensor and is this a "DIY' job?

Thanks
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Saturday, June 25th, 2022 AT 7:18 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This code can get triggered due to a bad pressure sensor which is located on the valve body of the transmission. It will require partial disassembly of the transmission.
This can also be due to the wiring issue for the sensor.

I have attached the troubleshooting guide for the code P0870 below.
This can help you determine what the issue is.

Let me know of any questions.
Thank you.
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Saturday, June 25th, 2022 AT 7:44 PM

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