Question

What is the solution to fault code P1860 on my 2004 Cadillac DTS? assume this is related to the torque converter lock-up function

Answer 1

Hi there,

Here is some info for this code.

P1860 CADILLAC - TCC PWM Solenoid Circuit Electrical

Read more: https://www.autocodes.com/p1860_cadillac.html