Transmission intermittently slipping?

Tiny
SUE_PENTZ
  • MEMBER
  • 2007 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
My transmission has been slipping. Some days it's okay, other days, not so good. At the same time, I'm experiencing various, intermittent electrical problems. These include the clock display, vanity lights and radio speakers. Also, sometimes my shifter won't shift out of park. Can these problems possibly be related? I sure hope so.
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Friday, January 20th, 2023 AT 9:33 AM

3 Replies

Tiny
KEN L
  • ADMIN
The only thing that can tie these problems together is the gauge control module, you can confirm the failure be doing a CAN scan, you can get a CAN scanner (Controller Area Network) from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

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

Here are the instructions for replacing the gauge module which you can get a rebuilt unit by searching google or eBay. Check out the images (below). Please let us know what happens.

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Friday, January 20th, 2023 AT 6:11 PM
Tiny
SUE_PENTZ
  • MEMBER
I checked the transmission fluid, and it was very low. I added fluid, and although there is still some transmission slipping, the problem is not nearly as bad as before. There are still odd electrical things going on intermittently. The last time I drove the car, it didn't seem to have a care in the world.
We connected a CAN scanner to the car today. This is the only thing the scan reported.

P0420
Catalyst system efficiency below threshold bank.

What steps should I take now?
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Sunday, January 29th, 2023 AT 1:20 PM
Tiny
KEN L
  • ADMIN
With the transmission fluid low, it could have burned up the clutches or there is a change the input shaft speed sensor is off causing the slippage. Here is the location of the sensor so you can change it out. Also, can you recheck the fluid condition and smell if it is burnt? Let me know.
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Monday, January 30th, 2023 AT 11:02 AM

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