2003 trailblazer 4.2l 4wd with a P1860 what is the cause

Question

2003 TRAILBLAZER 4.2L JERKING WHILE DRIVING HWY. SPEED WITH CODE P1860.
WHAT IS THE ROOT CAUSE OF THIS PROBLEM

Answer 1

Hi there,

This code indicates an issue with the TCC PWM. Here is a list of possible causes.

P1860 CHEVROLET - TCC PWM Solenoid Circuit Electrical

Read more: https://www.autocodes.com/p1860_chevrolet.html