#21-NA-077 - Information on Aero Shutter Related Diagnostic Codes - (May 3, 2021)

Subject:
Information on Aero Shutter Related Diagnostic Codes

Brand:

Model:

Model Year:

Date Breakpoint:

Engine:

Transmission:

from

to

from

to

Cadillac

Escalade Models

2019

2021

SOP

June 30, 2021

All

All

Chevrolet

Silverado 1500 (New Model)

2019

2019...

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Document Title: #21-NA-077 - Information on Aero Shutter Related Diagnostic Codes - (May 3, 2021)

information

aero

shutter

codes

model

engine

june

silverado

sierra

condition

check

operation

debris

following

fuse

ensure

loose

continuity

wiring

harness

resistances

present

corrosion

found

repair

report

failure

occurred

photos

splice

repaired

replace

part

engagement

jumper

actuators

soft

connection

perform

functionality

work

assemblies

replaced

connector

water

intrusion

additionally

signs

seal

damaged

apply

dielectric

grease

proceed

equipped

upper

lower

passenger

louvre

vane

intentionally

missing

assembly

airflow

reason

remove

disengaged

linkage

vehicle

engage

clear

test

louver

modification

bulletin

warranty

coverage

labor

following check

check fuse

fuse aero

aero shutters

check continuity

engine wiring

present wiring

wiring corrosion

repair harness

check engagement

jumper harness

harness shutter

shutter actuators

actuators ensure

ensure soft

continuity jumper

harness aero

found replace

replace aero

shutter wiring

functionality check

check shutters

shutters work

work replace

replace assemblies

replaced check

connector corrosion

corrosion water

additionally check

check connectors

connectors aero

signs water

water corrosion

corrosion check

check seal

seal condition

condition connectors

connectors damaged

grease connector

corrosion present

present proceed

proceed replace

replace shutter

following vehicles

lower shutters

shutters upper

upper shutter

missing shutter

shutter assembly

reasons replace

shutter reason

check debris

debris upper

vane disengaged

vehicle shutter

shutter condition

condition engage

engage louvre

vane shutter

lower shutter

debris present

clear debris

debris louvre

assembly replace

shutter louver

labor operation

aero shutter related

shutter related diagnostic

related diagnostic codes

check aero shutter

aero shutter operation

following check fuse

check fuse aero

fuse aero shutters

aero shutters ensure

check continuity engine

continuity engine wiring

engine wiring harness

resistances present wiring

present wiring corrosion

wiring corrosion found

found repair harness

click size check

splice repair splice

check engagement jumper

engagement jumper harness

jumper harness shutter

harness shutter actuators

shutter actuators ensure

actuators ensure soft

ensure soft connection

check continuity jumper

continuity jumper harness

jumper harness aero

harness aero shutters

aero shutters resistances

shutters resistances present

corrosion found replace

found replace aero

replace aero shutter

aero shutter wiring

perform functionality check

functionality check shutters

check shutters work

shutters work replace

work replace assemblies

replace assemblies replaced

assemblies replaced check

connector corrosion water

corrosion water intrusion

intrusion additionally check

additionally check connectors

check connectors aero

connectors aero shutter

signs water corrosion

water corrosion check

corrosion check seal

check seal condition

seal condition connectors

condition connectors damaged

connectors damaged apply

dielectric grease connector

grease connector corrosion

connector corrosion present

corrosion present proceed

present proceed replace

proceed replace shutter

following vehicles equipped

upper lower shutters

lower shutters upper

shutters upper shutter

intentionally missing shutter

missing shutter assembly

shutter assembly airflow

airflow reasons replace

reasons replace shutter

replace shutter reason

check debris upper

debris upper lower

lower shutters found

shutters found remove

found remove debris

louvre vane disengaged

vane disengaged linkage

linkage vehicle shutter

vehicle shutter condition

shutter condition engage

condition engage louvre

engage louvre vane

louvre vane shutter

vane shutter assembly

check upper shutter

upper upper shutter

assembly hand compressed

shutter vehicle clear

vehicle clear debris

debris louvre vane

shutter assembly replace

assembly replace shutter

functional replace assemblies

clear debris present

lower shutter louver

shutter louver modification

louver modification found

modification found bulletin

functionally test shutters

complete lower shutter

resistance present wiring