Code PO871, where is the transmission fluid pressure sensor located?

RYUREI4444

MEMBER
2019 CHEVROLET SPARK
1.4L
4 CYL
2WD
AUTOMATIC
150,000 MILES

Engine code PO871 transmission fluid pressure sensor/switch "C" circuit range/performance.

Where is the location of this sensor on my transmission so I can replace it?

Thursday, May 11th, 2023 AT 5:40 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

The switch is located under the transmission filter. Thus, you need to remove the transmission pan and filter to access it. Once the filter is out, there are two bolts that hold a retainer in place holding the sensor.

If you look below, I attached the directions for removing and replacing the sensor. Since you will have the transmission pan and filter removed, this is a good time to replace the filter. Make sure to use the correct CVT fluid when you fill it.

Let me know if this helps or if you have questions.

Take care,

Joe

See pics below.

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