Bulletin No.: 16-NA-051
Date: Aug-2016

Subject:

Brand:

Active Shutters Inoperative, Malfunction Indicator Lamp (MIL) Illuminated

Model:

Model Year:

VIN:
from

Chevrolet

Malibu (VIN Z)

2016

Engine:

Transmission:

to

2016

Involved Region or Country

North America and Israel

Additional Options (RPO)

VRI

Condition

Some customers may comment on the Malfunction Indicator Lamp (MIL) being illuminated.
The Technician may find one or more of the following DTCs set:

Cause

•

P059F

•

U1501

•

U1510

•

U1511

This condition may be caused by the following conditions:

•

Moisture intrusion in the B9, M60B and/or X119 connector for the Ambient Air Temperature Sensor
Wiring Harness.

•

Snow and/or ice buildup in the front lower grille area of the vehicle, which could prevent the active aero
shutters from opening or closing.

Correction

1

Inspect the Ambient Air Temperature Sensor Wiring Harness connectors B9 (2), M60B (3) and the X119 (4, 5) for any signs of corrosion.

•

If any corrosion was found on the Ambient Air Temperature Sensor Wiring Harness (1), it must be replaced.

•

If the corrosion was found at the X119 connector (5), the main body wiring harness connector must be repaired as needed.

•

If the corrosion was found on the B9 connector (2), the Ambient Air Temperature Sensor must be replaced.

•

If the corrosion was found on the M60B connector (3), the active shutter must be replaced.

If the above inspection did not find any corrosion and there are signs of previous snow or ice in the Active Shutter system, explain to the customer that this can
occur during certain weather conditions and the MIL will clear when the shutters are in working proper order. It will not impact the designed performance or
reliability of the vehicle. Please share this information with the customer, including a copy of this bulletin.

Parts Information
Description

Part Number

Qty

CONNECTOR KIT, WRG HARN

13504371

1

HARNESS, AMB AIR TEMP SEN WRG

23258243

1

Warranty Information
Labor Operation

Description

Labor Time

5430860

Connector Kit Replacement

Use Published Labor Operation
Time

5480328*

Ambient Air Temperature Sensor Wiring Harness - Replacement

0.5 hr

2

*This is a unique Labor Operation for Bulletin use only.

Version

2

Modified

August 11, 2016 – Added DTCs and added Ambient Harness and repair.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

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