Its ignition control module is failing. Since 2014 I have replaced it three times. ... I’d ask your tech to take a very close look at the wiring connector that attaches to the module.

Buick’s ignition control module keeps failing. Published 12:00 am Sunday, May 17, 2015. ... I’d ask your service tech to take a very close look at the wiring connector that attaches to the module.

According to RepairPal, the average cost for an Engine Control Module (ECM) replacement ranges between $1,037 and $1,113, but the exact cost may vary based on your car's make and model.