Code P0715, Overdrive light is always blinking while driving

Tiny
TOOL_UNO
  • MEMBER
  • 2005 FORD E-SERIES VAN
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 240,000 MILES
The transmission fluid is not low or dirty. I've replaced the input speed sensor for a new one.

The wiring seems fine but is suspect since after a battery reset the code appears on the second start up after diving.

Is there any other speed sensor I should be looking to replace? I replaced the one on the driver's side, but I've heard there's another.

Any diagrams or trouble shooting suggestions related to this issue? Trying to resolve due to emissions.
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Sunday, June 19th, 2022 AT 12:13 PM

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Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The code P0715 gets triggered due to not getting proper signal from the TSS (turbine shaft speed) sensor. This could be due to wiring issues as well as the sensor.

The TSS is located on the driver side of the transmission (see attached diagram).

I have also included the troubleshooting guide for the code P0715 below. This can help you determine the issue.

Let me know of any questions.
Thank you.
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Sunday, June 19th, 2022 AT 12:31 PM

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