The control module has two internal five-volt reference buses called five-volt reference 1 and five-volt reference 2 . Each reference bus provides 5-volt reference circuit for more than one sensor.

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.

Check the fuse box, which is located either in the engine bay or behind the glovebox. For the exact location of the cruise control fuse and relay, check your vehicle’s owner manual.

Some 2023-2024 Chevy Silverado Units Will Need An Engine Control Module Fix By George Barta June 10, 2025 4:54 pm 7 Sponsored ...