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Home >> Lincoln >> 2010 >> MKS AWD V6-3.5L Turbo >> Repair and Diagnosis >> Body and Frame >> Locks >> Power Locks >> Testing and Inspection >> Pinpoint Tests >> Handles, Locks, Latches And Entry Systems - Intelligent Access (IA) >> Pinpoint Test AB: The Luggage Compartment Lid Latch Release Is Inoperative/Does Not Operate Correctly

Pinpoint Test AB: The Luggage Compartment Lid Latch Release Is Inoperative/Does Not Operate Correctly




Handles, Locks, Latches and Entry Systems - Intelligent Access (IA)

Pinpoint Test AB: The Luggage Compartment Lid Latch Release Is Inoperative/Does Not Operate Correctly

Refer to Wiring Diagram Set 113, Luggage Compartment Lid Release for schematic and connector information. Diagrams By Number

Normal Operation

When the Remote Function Actuator (RFA) module receives an open request from the luggage compartment lid switch, an Intelligent Access (IA) key or the keyless entry keypad, the RFA module supplies voltage to the luggage compartment lid latch which releases the latch. The luggage compartment lid latch has a dedicated ground circuit.

The RFA module sends a voltage signal to the interior luggage compartment lid release switch through the input circuit. When the interior luggage compartment lid release switch is pressed, the voltage signal is routed to ground, signaling the RFA module to release the luggage compartment lid. The interior luggage compartment lid release switch has a dedicated ground circuit.

- DTC B1219:11 (Interior Boot/Trunk Release Switch: Circuit Short to Ground) - an on-demand DTC that sets if the RFA module detects a short to ground only on the interior luggage compartment lid release switch circuit CPL60 (BN/YE).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Interior luggage compartment lid release switch
- Luggage compartment lid latch
- RFA module



PINPOINT TEST AB: THE LUGGAGE COMPARTMENT LID LATCH RELEASE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.

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AB1 CHECK THE DOOR LOCK OPERATION


- Lock and unlock the doors using a door lock control switch.
- Do the door locks operate correctly?

Yes
GO to AB2.

No
GO to Pinpoint Test W. Pinpoint Test W: All Door Locks Are Inoperative

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AB2 CHECK THE LUGGAGE COMPARTMENT LID LATCH RELEASE USING THE RKE TRANSMITTER


- Press the luggage compartment lid release button twice within 3 seconds on the RKE transmitter.
- Does the luggage compartment lid latch release?

Yes
GO to AB3.

No
GO to AB10.

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AB3 CHECK THE IA LUGGAGE COMPARTMENT RELEASE


- Press the external luggage compartment lid release switch while an IA key is within 1 m (3 ft) of the luggage compartment.
- Does the luggage compartment lid latch release?

Yes
GO to AB4.

No
GO to Pinpoint Test AF. Pinpoint Test AF: The Luggage Compartment Intelligent Access (IA) Is Inoperative

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AB4 RETRIEVE THE RECORDED RFA MODULE DTCs FROM THE SELF-TEST


- Check for recorded RFA module DTCs from the self-test.
- Is DTC B1219:11 present?

Yes
GO to AB5.

No
GO to AB7.

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AB5 REPEAT THE RFA MODULE SELF-TEST


- Disconnect: Interior Luggage Compartment Lid Release Switch C2269 .
- Erase the DTCs, then repeat the RFA module self-test.
- Is DTC B1219:11 recorded?

Yes
GO to AB6.

No
INSTALL a new interior luggage compartment lid release switch. REFER to Luggage Compartment Lid Release Switch - Interior Luggage Compartment Lid Release Switch - Interior. TEST the system for normal operation.

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AB6 CHECK THE LUGGAGE COMPARTMENT LID RELEASE SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND


- Ignition OFF.
- Disconnect: RFA Module C2153e .
- Measure the resistance between the luggage compartment lid release switch C2269-6, circuit CPL60 (BN/YE), harness side and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to AB15.

No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

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AB7 CHECK THE LUGGAGE COMPARTMENT LID RELEASE SWITCH GROUND CIRCUIT FOR AN OPEN


- Disconnect: Negative Battery Cable .
- Disconnect: Interior Luggage Compartment Lid Release Switch C2269 .
- Measure the resistance between the luggage compartment lid release switch C2269-2, circuit GD116 (BK/VT), harness side and ground.




- Is the resistance less than 5 ohms?

Yes
GO to AB8.

No
REPAIR the circuit. TEST the system for normal operation.

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AB8 CHECK THE LUGGAGE COMPARTMENT LID RELEASE SWITCH


- Connect a fused jumper wire between the luggage compartment lid release switch C2269-6, circuit CPL60 (BN/YE), harness side and the luggage compartment lid release switch C2269-2, circuit GD116 (BK/VT), harness side.




- Does the luggage compartment lid latch release?

Yes
INSTALL a new luggage compartment lid release switch. REFER to Luggage Compartment Lid Release Switch - Interior Luggage Compartment Lid Release Switch - Interior. TEST the system for normal operation.

No
GO to AB9.

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AB9 CHECK THE LUGGAGE COMPARTMENT LID RELEASE SWITCH INPUT CIRCUIT FOR AN OPEN


- Ignition OFF.
- Disconnect: RFA Module C2153e .
- Measure the resistance between the luggage compartment lid release switch C2269-6, circuit CPL60 (BN/YE), harness side and the RFA module C2153e-15, circuit CPL60 (BN/YE), harness side.




- Is the resistance less than 5 ohms?

Yes
GO to AB15.

No
REPAIR the circuit. TEST the system for normal operation.

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AB10 CHECK THE LUGGAGE COMPARTMENT LID RELEASE OUTPUT CIRCUIT FOR VOLTAGE


- Ignition ON.
- Disconnect: Luggage Compartment Lid Latch C429 .
- NOTE: Do not operate the luggage compartment lid release switch while carrying out this test.
- Measure the voltage between the luggage compartment lid latch C429-3, circuit CPL59 (BN/BU), harness side and ground.




- Is any voltage present?

Yes
GO to AB11.

No
GO to AB12.

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AB11 CHECK THE LUGGAGE COMPARTMENT LID RELEASE OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE


- Ignition OFF.
- Disconnect: RFA Module C2153d .
- Measure the voltage between the luggage compartment lid latch C429-3, circuit CPL59 (BN/BU), harness side and ground.




- Is any voltage present?

Yes
REPAIR the circuit. TEST the system for normal operation.

No
GO to AB15.

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AB12 CHECK FOR VOLTAGE TO THE LUGGAGE COMPARTMENT LID LATCH


- NOTE: The RFA module only supplies voltage to the luggage compartment lid latch momentarily. It is important to watch the meter while pressing the luggage compartment lid release switch.
- While pressing the luggage compartment lid release switch, measure the voltage between the luggage compartment lid latch C429-3, circuit CPL59 (BN/BU), harness side and ground.




- Is the voltage momentarily greater than 10 volts?

Yes
GO to AB14.

No
GO to AB13.

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AB13 CHECK THE LUGGAGE COMPARTMENT LID RELEASE OUTPUT CIRCUIT FOR AN OPEN


- Ignition OFF.
- Disconnect: RFA Module C2153d .
- Measure the resistance between the luggage compartment lid latch C429-3, circuit CPL59 (BN/BU), harness side and the RFA module C2153d-5, circuit CPL59 (BN/BU), harness side.




- Is the resistance less than 5 ohms?

Yes
GO to AB15.

No
REPAIR the circuit. TEST the system for normal operation.

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AB14 CHECK THE LUGGAGE COMPARTMENT LID LATCH GROUND CIRCUIT FOR AN OPEN


- Disconnect: Negative Battery Cable .
- Disconnect: Luggage Compartment Lid Latch C429 .
- Measure the resistance between the luggage compartment lid latch C429-4, circuit GD149 (BK/GY), harness side and ground.




- Is the resistance less than 5 ohms?

Yes
INSTALL a new luggage compartment lid latch. REFER to Luggage Compartment Lid Latch Service and Repair. TEST the system for normal operation.

No
REPAIR the circuit. TEST the system for normal operation.

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AB15 CHECK FOR CORRECT RFA MODULE OPERATION


- Disconnect all the RFA module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the RFA module connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new RFA module. REFER to Body Control Systems. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

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