So, this is a circuit error which can mean there is a connection issue, or the transmission pressure pump had gone out which affects the circuit.
The P2721 code on your 2019 Honda City refers to a problem with the Pressure Control Solenoid "E" Electrical circuit.
Here is the wiring diagrams so confirm the connection is okay or needs repair.
This guide can help you with the testing:
https://www.2carpros.com/articles/how-to-check-wiring
Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with. It is a simple one wire connection to the TCM.
Images (Click to make bigger)
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Tuesday, October 1st, 2024 AT 12:21 PM