Lincoln Aviator: Front End Body Panels / Description and Operation - Active Grille Shutter - Overview
Overview
The
AGS (Active Grille Shutter) system is primarily used to improve fuel
economy by reducing aerodynamic drag while the vehicle in moving. It is
also used to shorten engine warm-up time, which increases engine
efficiency and provides faster heat delivery to the vehicle cabin. The
active grille shutter actuator receives position commands from the PCM via the LIN.
Each
AGS (Active Grille Shutter) system assembly is comprised of a set of
vanes, linkage hardware and an active grille shutter actuator (motor).
The
active grille shutter system carries out a self-calibration sequence
whenever the engine is started, fully opening and closing the shutters
before being positioned to the desired opening position as requested by
the PCM.
AGS (Active Grille Shutter) will also be active in HEV, during plug-in charging to provide airflow for HEV cabin climate conditioning and component cooling when the vehicle is stationary. In HEV vehicles, the desired AGS (Active Grill Shutter) position request is transmitted by the SOBDMC and received by the PCM.
Regardless of the hardware modules present in a vehicle, the PCM will send the appropriate control signal to the Active Grill Motor.
A
vehicle may be fitted with a single or a dual AGS (Active Grill
Shutter) hardware system, depending on vehicle type, front end packaging
and underhood / powertrain hardware components installed. Each system
uses a separate AGS (Active Grill Shutter) motor that can be controlled
independently, depending on system requirements. It also provides its
own diagnostic status to the PCM for monitoring.
System Operation
System Diagram
Item
Description
1
HS-CAN
2
LIN
3
Lower Active Grille Shutter Actuator
4
Upper Active Grille Shutter Actuator
5
ABS
6
SOBDMC
7
PCM
Network Message Chart
PCM Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Vehicle speed
ABS module
Vehicle speed is used to determine positioning of the active grille shutters...
Other information:
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Diagnostic Trouble Code Chart
Module
DTC
Description
Action
BCM
B11DB:02
Battery Monitoring Module "A": General Signal Failure
GO to Pinpoint Test F
BCM
B11DB:08
Battery Monitoring Module "A": Bus Signal/Message Failures
GO to Pinpoint Test F
BCM
B11DB:09
Battery Monitoring Module "A": Component Failures
GO to Pinpoint Test F
BCM
B11DB:11
Battery Monitoring Module "A": Circuit Short To Ground
GO to Pinpoint Test F
BCM
B11DB:49
Battery Monitoring Module "A": Internal Electronic Failure
GO to Pinpoint Test I
BCM
B11DB:55
Battery Monitoring Module "A": Not Configured
GO to Pinpoint Test J
BCM
B1489:11
Battery Monitoring System (BMS) Sensor Power: Circuit Short To Ground
GO to Pinpoint Test F
PCM
P0562:00
System Voltage Low: No Sub Type Information
GO to Pinpoint Test B
PCM
P0563:00
System Voltage High: No Sub Type Information
GO to Pinpoint Test A
PCM
P065B:00
Generator "A" Control Circuit Range/Performance: No Sub Type Information
GO to Pinpoint Test B
PCM
P065C:00
Generator "A" Mechanical Performance: No Sub Type Information
GO to Pinpoint Test B
PCM
P0A3B:00
Generator "A" Over Temperature: No Sub Type Information
GO to Pinpoint Test K
PCM
P0A5A:00
Generator Current Sensor Circuit Range/Performance: No Sub Type Information
GO to Pinpoint Test E
PCM
P0A5B:00
Generator Current Sensor Circuit Low: No Sub Type Information
GO to Pinpoint Test E
PCM
P0A5C:00
Generator Current Sensor Circuit High: No Sub Type Information
GO to Pinpoint Test E
PCM
U012D:00
Lost Communication With Generator "A" Control Module: No Sub Type Information
GO to Pinpoint Test G
PCM
U042E:00
Invalid Data Received From Generator "A" Control Module: No Sub Type Information
GO to Pinpoint Test G
Inspection and Verification
Verify the customer concern by operating the charging system...
Special Tool(s) /
General Equipment
Interior Trim Remover
Removal
Remove the luggage compartment floor covering.
NOTE:
LH (left-hand) side shown, RH (right-hand) side similar.
On both sides.
Release the clips and remove the luggage compartment side trim panel...