Checking Chevy Grille Shutter

A 2016-2017 Chevy Colorado may have a MIL on with DTC P151E set. This condition may be caused by a poor connection at the X105 connector. The connector at the active grille air shutter motor must be checked for proper operation. Do not replace the active shutter until the electrical connection has been verified as good.

Information courtesy of Mitchell 1

Mike Mavrigian

Feb. 1, 2023

2 min read

Connection at the shutter motor (1) and the X105 connector (2).

The connector X105 is located behind the left side of the fascia, attached to the tie bar. The fascia does not need to be removed for this procedure.
|Photo Credit: Mitchell 1

Turn the ignition off and allow time for the vehicle to power down (up to two minutes). Partially raise and support the vehicle. Turn the steering wheel fully to the right. Remove the fasteners in the front half of the left front wheel liner in the wheel well. Pull the wheel liner back and tuck it behind the left front wheel. Reach through the opening to the front lower left corner of the cooling module to locate connector X105. Disconnect the X105 connector for the active grille air shutter motor. Apply dielectric grease to the connector, connect the connector, reinstall the wheel liner and lower the vehicle. Verify that the DTC is no longer set.

This shows the lower fascia support removed for clarity of the connector location.
|Photo Credit: Mitchell 1

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.