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2004 t Mazda 2.3 sedan I At light on, shift into revers

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2004 t Mazda 2.3 sedan...
2004 t Mazda 2.3 sedan I At light on , shift into revers harsh.At Light comes on a few minutes after starting car when cold. Within a minute if warm. Also, sport mode and or manual mode doesn't work when At light on. Have replaced speed sensor, swapped out a used TCM module(worked for about 10 miles with no AT light. Took to AAMCO, pulled codes U0100 P0745 U0073 U0121 U0155. Have checked numerous connections many times over. Car shifts fine when AT lignt not on(CEL) doesn't come on.
Submitted: 1 year ago.Category: Transmissions
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Customer reply replied 1 year ago
what do you think it could be?
Answered in 1 day by:
9/20/2016
Transmission Mechanic: Chris (aka- Moose), Technician replied 1 year ago
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 49,383
Experience: 16 yrs. experience with auto, manual, & CVT drivelines
Verified

Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.

  • Sorry no one has helped yet.
  • This is not an answer to your question, just an inquiry if your still needing/wanting help. Because I believe I can help.
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Transmission Mechanic: Chris (aka- Moose), Technician replied 1 year ago

So far this looks to be an intermittent wire issue for these module communication codes.

Can you/ do you know how to wire test?

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Transmission Mechanic: Chris (aka- Moose), Technician replied 1 year ago

Hello again Chris here,

  • I am following up with you to see if you got everything you needed from my answer.
  • I have not heard back from you, so I assume you were not pleased. We're you pleased with my help?
  • If you were not pleased with my help, please let me know by replying so I can help more.
  • This post is coming up on the 7 day mark where it times out. When a post times out, that means it's no longer on my active list (you reply and I may never know it.)

Thanks Chris

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Chris (aka- Moose)
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 49,383
49,383 Satisfied Customers
Experience: 16 yrs. experience with auto, manual, & CVT drivelines

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