Ford Fusion: Passive Anti-Theft System (PATS) / Passive Anti-Theft System (PATS). Diagnosis and Testing

Ford Fusion 2013–2020 Service Manual / Electrical / Electronic Feature Group / Passive Anti-Theft System (PATS) / Passive Anti-Theft System (PATS). Diagnosis and Testing

DTC Charts

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).

BCM DTC Chart

DTC	Description	Action
B10C7:01	Interior Trunk Antenna: General Electrical Failure	GO to Pinpoint Test A
B10C8:01	Interior Centre Antenna: General Electrical Failure	GO to Pinpoint Test A
B10D7:05	PATS Key: System Programming Failure	DIAGNOSE all other Diagnostic Trouble codes (DTCs) first. If no other Diagnostic Trouble codes (DTCs) are present, PROGRAM the suspect passive key again. If key programming fails, REPLACE the suspect passive key. PROGRAM the new passive key. REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B10D8:00	PATS Key Less Than Minimum Programmed: No Sub Type Information	Less than 2 keys are programmed (minimum of 2 keys must be programmed). PROGRAM the customer's second key. REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B10DA:51	PATS Target Identifier: Not Programmed	There is no PCM/ SOBDMC ID stored in the BCM memory. PERFORM a parameter reset. REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B11C6:01	Passenger Door External Antenna: General Electrical Failure	GO to Pinpoint Test A
B11CA:01	Driver Door External Antenna: General Electrical Failure	GO to Pinpoint Test A
All other Diagnostic Trouble Codes (DTCs)	-	REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

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).

PCM/ SOBDMC DTC Chart

DTC	Description	Action
P161A	Incorrect Response from Immobilizer Control Module	The BCM ID received by the PCM/ SOBDMC does not match the ID stored in the PCM/ SOBDMC memory. PERFORM a parameter reset. REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
P161B	Incorrect Response from Secondary Immobilizer Module	The BCM ID received by the SOBDMC does not match the ID stored in the SOBDMC memory. PERFORM a parameter reset. REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
All other Diagnostic Trouble Codes (DTCs)	-	REFER to the appropriate 303-14 Section.

Symptom Chart

Symptom Chart: PATS

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).

Condition	Possible Sources	Actions
No Key Detected displays in the message center	Refer to the Pinpoint Test	GO to Pinpoint Test A
The vehicle does not start with the passive key in certain areas within the vehicle but starts using the passive key backup location	Refer to the Pinpoint Test	GO to Pinpoint Test A
Unable to program new keys	Refer to the Pinpoint Test	GO to Pinpoint Test A
Unable to turn the ignition on or the ready to drive indicator does not display	Refer to the Pinpoint Test	GO to Pinpoint Test B

Pinpoint Tests

No Key Detected displays in the message center

Refer to Wiring Diagrams Cell 112 for schematic and connector information.

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Passive Anti-Theft System (PATS) - System Operation and Component Description (419-01B Passive Anti-Theft System (PATS), Description and Operation).

The PATS does not disable an already running vehicle.

BCM DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
B10C7:01	Interior Trunk Antenna: General Electrical Failure	Sets when the BCM detects a fault with the keyless entry rear antenna.
B10C8:01	Interior Centre Antenna: General Electrical Failure	Sets when the BCM detects a fault with the PATS center antenna.
B11C6:01	Passenger Door External Antenna: General Electrical Failure	Sets when the BCM detects a fault with the passenger door keyless entry antenna.
B11CA:01	Driver Door External Antenna: General Electrical Failure	Sets when the BCM detects a fault with the driver door keyless entry antenna.

Possible Causes

Environmental interference
Wiring, terminals or connectors
Passive key not programmed
PATS center antenna
Keyless entry rear antenna
Driver exterior front door handle
Passenger exterior front door handle
BCM

Visual Inspection and Diagnostic Pre-checks

If the selection is available on the scan tool (Body>Security>PATS Functions), make sure the passive entry/passive start feature is enabled. If disabled, the vehicle only starts with the key in the backup starting location.

PINPOINT TEST A : NO KEY DETECTED DISPLAYS IN THE MESSAGE CENTER

A1 CHECK FOR BCM (BODY CONTROL MODULE) ANTENNA DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: If unable to program new keys, follow the diagnostics for DTC B10C8:01.

Ignition ON.

Using a diagnostic scan tool, carry out the BCM self-test. Record the DTC.

Ignition OFF.

Is DTC B10C7:01, B10C8:01, B11C6:01 or B11CA:01 present?

Yes

GO to A8

GO to A2

A2 CHECK IF THE PASSIVE KEYS START THE VEHICLE FROM THE BACKUP STARTING LOCATION

Place the suspect passive key in the backup starting location and attempt to start the vehicle.
REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).

Does the key start the vehicle (ready to drive displays in the message center for hybrid vehicles)?

Yes

GO to A5

GO to A3

A3 DOCUMENT THE KEY IDENTIFICATIONS USING THE BCM (BODY CONTROL MODULE) KEY ID AND RTM (RADIO TRANSCEIVER MODULE) KEY ID PARAMETER IDENTIFICATIONS (PIDS)

Using the diagnostic scan tool, view the BCM PIDs.

Using the diagnostic scan tool, monitor the following BCM PIDs:
- TIC_01_BCM (Programmed Transmitter ID Code (TIC) Value 1)
- TIC_02_BCM (Programmed Transmitter ID Code (TIC) Value 2)
- TIC_03_BCM (Programmed Transmitter ID Code (TIC) Value 3)
- TIC_04_BCM (Programmed Transmitter ID Code (TIC) Value 4)
- TIC_05_BCM (Programmed Transmitter ID Code (TIC) Value 5)
- TIC_06_BCM (Programmed Transmitter ID Code (TIC) Value 6)

Document each programmed TIC ID.

Using the diagnostic scan tool, view the RTM PIDs.

Using the diagnostic scan tool, monitor the RTM Lst_Xm_ID_Cd (Last Received Transmitter ID Code (TIC)) PID while pressing the lock and unlock buttons on the suspect key.

Document the RTM Lst_Xm_ID_Cd TIC ID displayed when pressing the lock and unlock buttons on the suspect key.

Compare the RTM TIC ID to the recorded BCM TIC IDs.

Does the RTM TIC ID match any of the recorded BCM TIC IDs?

Yes

GO to A4

No	No fault found. The key in question is not the original key that came with the vehicle.

A4 VERIFY THE KEY OPERATION

Check the operation of the suspect key.

Is the concern still present?

Yes

REPLACE the suspect key. PROGRAM the new key. Refer to the appropriate key programming procedure.
REFER to: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).

No	The system is OK. The concern was caused by an incompleted programmed key.

A5 CHECK THE RKE (REMOTE KEYLESS ENTRY) TRANSMITTER OPERATION

Press the lock and unlock RKE transmitter buttons on the suspect passive key.

Do the doors lock and unlock?

Yes

GO to A6

No	REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

A6 CHECK THE PASSIVE KEY LOCATION

Check the location of the passive key. If it is placed in the far corners of the interior of the vehicle, move the passive key out of these areas and attempt to start the vehicle.

Does the vehicle start (ready to drive displays in the message center for hybrid vehicles)?

Yes

The system is OK. INFORM the customer of the normal vehicle operation.

GO to A7

A7 CHECK FOR ENVIRONMENTAL INTERFERENCE

Check for the use of consumer electronic devices that may cause interference with the passive key such as:
- other passive keys.
- a charger that is plugged in.
- a USB plugging into the media center.
- a cell phone, speed pass or other electronic device next to the passive key.

Remove any devices found and attempt to start the vehicle.

Does the vehicle start (ready to drive displays in the message center for hybrid vehicles)?

Yes

The system is OK. INFORM the customer of the normal vehicle operation.

GO to A8

A8 CHECK THE SUSPECT ANTENNA

Ignition ON.

NOTE: For a concern with key programming or if unable to start the vehicle with the passive key in the backup starting location, follow the diagnostics for the PATS center antenna. Using a diagnostic scan tool, perform the BCM self-test. Record any DTC present.

Ignition OFF.

Disconnect suspect antenna.

Measure:
Click to display connectors
PATS Center Antenna ( DTC B10C8:01)

Positive Lead Measurement / Action Negative Lead

C3513, pin 1, component side C3513, pin 2, component side

Click to display connectors
Keyless Entry Rear Antenna (DTC B10C7:01)

Positive Lead Measurement / Action Negative Lead

C4817, pin 1, component side C4817, pin 2, component side

Click to display connectors
Driver Exterior Front Door Handle (DTC B11CA:01)

Positive Lead Measurement / Action Negative Lead

C543, pin 2, component side C543, pin 3, component side

Click to display connectors
Passenger Exterior Front Door Handle (DTC B11C6:01)

Positive Lead Measurement / Action Negative Lead

C634, pin 2, component side C634, pin 3, component side

Is the resistance between 1 and 10 ohms?

Yes

GO to A9

INSTALL a new antenna in question. For the PATS center antenna,
REFER to: Passive Anti-Theft System (PATS) Center Antenna (419-01B Passive Anti-Theft System (PATS), Removal and Installation). For the keyless entry rear antenna,
REFER to: Keyless Entry Rear Antenna (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For either front door exterior handle,
REFER to: Exterior Front Door Handle (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).

A9 CHECK THE SUSPECT ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE

Disconnect BCM C2280G (center PATS antenna).

Disconnect BCM C2280E (keyless entry rear antenna or exterior front door handle).

Measure:
Click to display connectors
PATS Center Antenna

Positive Lead Measurement / Action Negative Lead

C3513-1 Ground

C3513-2 Ground

Click to display connectors
Keyless Entry Rear Antenna

Positive Lead Measurement / Action Negative Lead

C4817-1 Ground

C4817-2 Ground

Click to display connectors
Driver Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C543-2 Ground

C543-3 Ground

Click to display connectors
Passenger Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C634-2 Ground

C634-3 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to A10

A10 CHECK THE SUSPECT ANTENNA CIRCUITS FOR A SHORT TO GROUND

Measure:
Click to display connectors
PATS Center Antenna

Positive Lead Measurement / Action Negative Lead

C3513-1 Ground

C3513-2 Ground

Click to display connectors
Keyless Entry Rear Antenna

Positive Lead Measurement / Action Negative Lead

C4817-1 Ground

C4817-2 Ground

Click to display connectors
Driver Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C543-2 Ground

C543-3 Ground

Click to display connectors
Passenger Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C634-2 Ground

C634-3 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to A11

No	REPAIR the circuit in question.

A11 CHECK THE SUSPECT ANTENNA CIRCUITS FOR AN OPEN

Measure:
Click to display connectors
PATS Center Antenna

Positive Lead Measurement / Action Negative Lead

C3513-1 C2280G-40

C3513-2 C2280G-27

Click to display connectors
Keyless Entry Rear Antenna

Positive Lead Measurement / Action Negative Lead

C4817-1 C2280E-16

C4817-2 C2280E-15

Click to display connectors
Driver Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C543-2 C2280E-13

C543-3 C2280E-28

Click to display connectors
Passenger Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C634-2 C2280E-12

C634-3 C2280E-29

Are the resistances less than 3 ohms?

Yes

No	REPAIR the circuit in question.

A12 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all of the BCM connectors.

Repair:
- corrosion (install new connectors or terminals, clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect all the BCM connectors and 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 service articles: TSB, GSB, SSM, or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, 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.

Unable To Turn The Ignition On Or The Ready To Drive Indicator Does Not Display

Normal Operation and Fault Conditions

REFER to: Passive Anti-Theft System (PATS) - System Operation and Component Description (419-01B Passive Anti-Theft System (PATS), Description and Operation).

Possible Causes

Battery voltage concern
Driveability system concern
Starting system concern
PATS concern

PINPOINT TEST B : UNABLE TO TURN THE IGNITION ON OR THE READY TO DRIVE INDICATOR DOES NOT DISPLAY

B1 CHECK VEHICLE BATTERY

Carry out the Battery Condition Test.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK?

Yes

GO to B2

No	CORRECT the battery condition and VERIFY correct charging operation. REFER to the Diagnosis and Testing in the appropriate 414-00 section.

B2 CHECK FOR THE NO KEY DETECTED MESSAGE

Press and release the START/STOP button while monitoring the message center.

Is the No Key Detected message displayed in the message center?

Yes

GO to Pinpoint Test A

GO to B3

B3 CHECK FOR IGNITION ON MODE

Press and release the START/STOP button while monitoring the ignition mode indicator at the top of the button.

Does the ignition mode indicator flash on and off continuously?

Yes

The condition is not PATS-related. DIAGNOSE no power in ON.
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

GO to B4

B4 CHECK FOR BCM (BODY CONTROL MODULE) AND PCM (POWERTRAIN CONTROL MODULE) / SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES (DTCS)

Follow the procedure to establish a diagnostic scan tool session with the vehicle.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Using a diagnostic scan tool, carry out the BCM self-test.

Using a diagnostic scan tool, carry out the PCM/ SOBDMC self-test.

Are any BCM or PCM/ SOBDMC Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the BCM DTC Chart or the PCM/ SOBDMC DTC Chart in this section.

No	The condition is not PATS-related. DIAGNOSE no power in ON. REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

Passive Anti-Theft System (PATS) - System Operation and Component Description. Description and Operation

S..

Anti-Theft Key Programming - Scan Tool. General Procedures

Programming NOTE: Make sure the passive key battery(ies) measure at least 2.5 volts. A passive key with a depleted battery only starts the vehicle when in the backup starting location...

Ford Fusion: Passive Anti-Theft System (PATS) / Passive Anti-Theft System (PATS). Diagnosis and Testing

Passive Anti-Theft System (PATS) - System Operation and Component Description. Description and Operation

Anti-Theft Key Programming - Scan Tool. General Procedures

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