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2013 Chevrolet Equinox LT 2.4L No Start
Posted to GM Driveability on 8/13/2025 4 Replies

the car no communications whit ecm /tcm/ and steering module /abs/ i have code u0121 and u2099 any help please

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car Vehicle Data

2013 Chevrolet Equinox LT

VIN 2GNALPEK4D
Engine2.4 L / 4 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
Misc.U0121

Trouble Codes

U0121Lost Communication With Antilock Brake System Module
Open Help Request

car Vehicle Data

2013 Chevrolet Equinox LT

VIN 2GNALPEK4D
Engine2.4 L / 4 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
Misc.U0121

Trouble Codes

U0121Lost Communication With Antilock Brake System Module