P0748 TOYOTA -

Question

i have a 2004 toyota sienna the code come up and i have the tranny replaced with a used tran with 70k miles and it still come out code p0748
i check connnections seem good any have this problem before please help

Answer 1

You may need a new Engine Control Module. There is a service bulletin for that problem. See "Tech Notes" on the code page:

P0748 TOYOTA - Pressure Control Solenoid 'A' Electrical

Read more: https://www.autocodes.com/p0748_toyota.html