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
PACM
B1A01:01
Speaker #1: General Electrical Failure
GO to Pinpoint Test C
PACM
B1A01:11
Speaker #1: Circuit Short To Ground
GO to Pinpoint Test C
PACM
B1A01:12
Speaker #1: Circuit Short To Battery
GO to Pinpoint Test D
PACM
B1A01:13
Speaker #1: Circuit Open
GO to Pinpoint Test D
PACM
B1A02:01
Speaker #2: General Electrical Failure
GO to Pinpoint Test C
PACM
B1A02:11
Speaker #2: Circuit Short To Ground
GO to Pinpoint Test C
PACM
B1A02:12
Speaker #2: Circuit Short To Battery
GO to Pinpoint Test D
PACM
B1A02:13
Speaker #2: Circuit Open
GO to Pinpoint Test D
PACM
U0100:00
Lost Communication With ECM/PCM "A": No Sub Type Information
GO to Pinpoint Test E
PACM
U0140:00
Lost Communication With Body Control Module: No Sub Type Information
GO to Pinpoint Test F
PACM
U0422:00
Invalid Data Received From Body Control Module: No Sub Type Information
GO to Pinpoint Test G
PACM
U201A:51
Control Module Main Calibration Data: Not Programmed
GO to Pinpoint Test H
PACM
U2101:00
Control Module Configuration Incompatible: No Sub Type Information
GO to Pinpoint Test H
PACM
U3000:41
Control Module: General Checksum Failure
GO to Pinpoint Test I
PACM
U3000:42
Control Module: General Memory Failure
GO to Pinpoint Test I
PACM
U3000:96
Control Module: Component Internal Failure
GO to Pinpoint Test I
PACM
U3003:16
Battery Voltage: Circuit Voltage Below Threshold
GO to Pinpoint Test J
PACM
U3003:17
Battery Voltage: Circuit Voltage Above Threshold
GO to Pinpoint Test K
Symptom Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
Make sure the road wheels are in the straight ahead position, regardless of steering wheel position.
NOTE:
This step is only necessary when installing a new component...