Question

What does error code p0604 mean on my 2007 Chevrolet Equinox LT 3.4L?

Answer 1

Hi there,

This code actually points to an issue with the memory on the transmission control module.

DTC P0604

The TCM detects a random access memory (RAM) read/write error.

This will usually require replacement of the TCM

Answer 2

P0604 Chevrolet Code - Control Module Random Access Memory Performance
Read more: https://www.autocodes.com/p0604_chevrolet.html