Question

2003 Cadillac Escalade XLT 6.0L with engine code P1689, what causes this code?

Answer 1

Hi there,

This code indicates an issue with the electronic brake control module. Here is some info for you.

P1689 CHEVROLET - Traction Control Delivered Torque Output Circuit
Read more: https://www.autocodes.com/p1689_chevrolet.html