why is my buick enclave showing engine low if i went the dealership to replace my control module?

Question

My stop working while I was driving it and power off than when I cut it off and started it again it show engine losing power and wouldn't let me drive just paid the dealership $658 to change the module.and a day later this happen???? I need help

Answer 1

Reduce power, when this occur a DTC (diagnostic trouble code) is store in the ECM, you would need to know what codes are set in order to pin point the exact cause. If you are the original owner of this vehicle, The Recall for the ECM should have applied to you. TSB # 14515B .