Refer to Wiring Diagrams Cell 33 for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Active Grille Shutter - System Operation and Component
Description (501-02 Front End Body Panels, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
PCM P059F:00 |
Active Grille Air Shutter 'A' Performance/Stuck Off: No Sub Type Information |
When the grille shutter actuator senses it
is unable to move the grille shutter, it sends a message to the PCM via
the LIN . The PCM sets this DTC when the fault is communicated for a
predetermined amount of time.
|
PCM P05A1:00 |
Active Grille Air Shutter 'A' Position Sensor Minimum/Maximum Stop Performance: No Sub Type Information |
When the grille shutter actuator senses it
is unable to obtain a fully open or closed position of the grille
shutter, it sends a message to the PCM via the LIN . The PCM then sets
the DTC when the fault is communicated for a predetermined amount of
time.
|
PCM P05A2:00 |
Active Grille Air Shutter 'A' Control Circuit/Open: No Sub Type Information |
This DTC
sets when the grille shutter actuator control circuit H-Bridge is
overheated or if a short to ground or open is detected in the actuator
control circuit. The PCM sets this DTC when the condition is present for a predetermined amount of time.
|
PCM P05A7:00 |
Active Grille Air Shutter 'A' Supply Voltage Circuit Low: No Sub Type Information |
When the grille shutter actuator senses low voltage, it sends a message
to the PCM via the LIN . The PCM sets this DTC when the fault is
communicated for a predetermined amount of time.
|
PCM U0046:00 |
Vehicle Communication Bus C: No Sub Type Information |
This DTC sets when the PCM detects a short to voltage, ground or open in the LIN .
|
PCM U0284:00 |
Lost Communication with Active Grille Air Shutter Module 'A': No Sub Type Information |
When the PCM does not receive communication from the grille shutter
actuator for a predetermined amount of time, the PCM sets this DTC .
|
Possible Sources
- Fuse
- Wiring, terminals or connectors
- Active grille shutter
-
PCM
Visual Inspection and Pre-checks
- Verify BJB fuse 22 (10A) is OK.
- Make sure the grille opening does not have any debris or other obstructions that inhibit operation of the grille shutter.
- Make sure the grille shutter actuator electrical connector is not disconnected.
|
A1 RETRIEVE THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Using a scan tool, clear the PCM Diagnostic Trouble Codes (DTCs).
-
Using a diagnostic scan tool, perform PCM self-test.
Is DTC P05A7, U0046 or U0284 present?
No |
For DTC P059F, P05A1 or P05A2, GO to A9
For all other PCM Diagnostic Trouble Codes (DTCs), Refer to the appropriate section in Group 303 for the procedure.
|
|
A2 CHECK THE VOLTAGE SUPPLY TO THE GRILLE SHUTTER ACTUATOR |
-
Disconnect: Grille Shutter Actuator C1651.
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-3
|
|
Ground
|
Is the voltage greater than 11 volts?
No |
VERIFY BJB
fuse 22 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to
the Wiring Diagrams manual to identify the cause of the circuit short.
|
|
A3 CHECK THE GRILLE SHUTTER ACTUATOR GROUND CIRCUIT FOR AN OPEN |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-1
|
|
Ground
|
Is the resistance less than 3 ohms?
Yes |
For DTC U0046 or U0284, GO to A4
For DTC P05A7, GO to A11
|
|
A4 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN |
-
Disconnect: PCM
C1232B (1.0L), C1915B (2.0L).
-
For vehicles equipped with 1.0L, measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
C1232B-50
|
-
For vehicles equipped with 2.0L, measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
C1915B-50
|
Is the resistance less than 3 ohms?
|
A5 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
Ground
|
Is any voltage present?
|
A6 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE WITH THE GENERATOR DISCONNECTED |
-
Disconnect: Generator C1104B (1.0L), C1558B (2.0L).
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
Ground
|
Is any voltage present?
|
A7 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
Ground
|
Is the resistance greater than 10,000 ohms?
|
A8 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND WITH THE COOLANT PUMP DISCONNECTED |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C1651-2
|
|
Ground
|
Is the resistance greater than 10,000 ohms?
Yes |
INSTALL a new generator.
REFER to: Generator - 1.0L EcoBoost (92kW/125PS) (414-02 Generator and Regulator, Removal and Installation).
REFER to: Generator - 2.0L Duratec-HE (129kW/175PS) (414-02 Generator and Regulator, Removal and Installation).
|
|
A9
VERIFY THE GRILLE SHUTTER OPERATION USING THE GRILLE SHUTTER A POSITION -
COMMANDED (GRILL_A_CMD) PARAMETER IDENTIFICATION (PID) |
-
Start the engine and allow it to idle for at least
30 seconds to allow for the grille shutter calibration to complete.
-
Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
-
Using a diagnostic scan tool, select the PCM
Parameter Identification (PID) GRILL_A_CMD and active command the
grille shutter from 100% (open) to 0% (closed) while observing the
grille shutter operation from the front of the vehicle.
Does the grille shutter fully open and close when commanded by the diagnostic scan tool?
Yes |
The grille shutter system is operating correctly at
this time. The concern may have been caused by debris or obstruction.
|
|
A10 CHECK THE GRILLE SHUTTER FOR OBSTRUCTIONS AND/OR MECHANICAL BINDING CONCERNS |
-
Remove the grille shutter actuator.
-
Manually open and close the grille shutter, removing
any obstructions which can inhibit operation of the grille shutter or
linkage. The grille shutter should open and close easily with no
binding.
Does the grille shutter operate freely with no binding or obstruction?
No |
REPAIR the binding/obstruction, or if necessary,
INSTALL a new active grille shutter.
REFER to: Active Grille Shutter - 1.0L EcoBoost (92kW/125PS) (501-02 Front End Body Panels, Removal and Installation).
REFER to: Active Grille Shutter - 2.0L Duratec-HE (125kW/170PS) – MI4 (501-02 Front End Body Panels, Removal and Installation).
|
|
A11 CHECK FOR CORRECT GRILLE SHUTTER ACTUATOR OPERATION |
-
Disconnect: Grille Shutter Actuator C1651 (If 'Check charging system' message is displayed over instrumental cluster).
-
Inspect the grille shutter actuator electrical connector and jumper harness.
-
Repair:
-
corrosion (install new connector or terminals - clean module pins)
-
damaged or bent pins - install new terminals/pins as necessary
-
pushed-out pins - install new pins as necessary
-
Reconnect the grille shutter actuator connector,
jumper harness and all previously disconnected system connectors. Make
sure they seat and latch correctly.
-
Operate the system and determine if the concern is still present.
Is the concern still present?
Yes |
CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a
TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB
instructions. If no Technical Service Bulletins (TSBs) address this
concern, INSTALL a new active grille shutter.
REFER to: Active Grille Shutter - 1.0L EcoBoost (92kW/125PS) (501-02 Front End Body Panels, Removal and Installation).
REFER to: Active Grille Shutter - 2.0L Duratec-HE (125kW/170PS) – MI4 (501-02 Front End Body Panels, Removal and Installation).
|
No |
The system is operating correctly at this time. The
concern may have been caused by module connections. ADDRESS the root
cause of any connector or pin issues.
|
|