Code 0504
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Joined: Jan 2005
Posts: 17
Code 0504
"0504
Diagnostic Trouble Code 0504 points to a problem with the Automatic Transmission Communications line. Pulse signals are exchanged between the Engine Control Module and the Transmission Control Module to assure smooth shifting during hard acceleration or deceleration.
This malfunction is detected when the ECM continuously receives an incorrect voltage from the TCM. Possible causes include...
- Harness or connectors (The communications line circuit between the ECM and the TCM is open or shorted.)
- TCM
- Discharged or faulty battery"
How do I test this to narrow down the problem further?
here are my other sensor readouts
Diagnostic Trouble Code 0504 points to a problem with the Automatic Transmission Communications line. Pulse signals are exchanged between the Engine Control Module and the Transmission Control Module to assure smooth shifting during hard acceleration or deceleration.
This malfunction is detected when the ECM continuously receives an incorrect voltage from the TCM. Possible causes include...
- Harness or connectors (The communications line circuit between the ECM and the TCM is open or shorted.)
- TCM
- Discharged or faulty battery"
How do I test this to narrow down the problem further?
here are my other sensor readouts
Yyyyeeeeaaaa that was posted in 05, so im sure he has either figured out and fixed the problem or has gotten rid of the car lol
Last edited by Shift_Nismo; Feb 21, 2011 at 05:45 PM.
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Kyle Lee Cleveland
6th Generation Maxima (2004-2008)
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Sep 28, 2015 09:01 PM