Pinpoint Test J: The Luggage Compartment IA Is Inoperative

NOTE: 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, BATTERY MOUNTING & BATTERY CABLES article.

J1 CHECK THE RKE OPERATION
- Press the unlock button on an IA key.
- Does the driver door unlock?
- Yes : GO to J2.
- No : GO to PINPOINT TEST K .
J2 CHECK THE LUGGAGE COMPARTMENT LID LATCH RELEASE OPERATION
- Press the interior luggage compartment lid release switch.
- Does the luggage compartment lid latch release?
- Yes : GO to J3.
- No : GO to PINPOINT TEST F .
J3 CHECK THE IA KEY
- Place the IA key on the center console and start the engine.
- Does the engine start?
- Yes : GO to J4.
- No : REFER to ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) article.
J4 RETRIEVE THE RECORDED RFA MODULE DTCs FROM THE SELF-TEST
- Check for recorded RFA module DTCs from the self-test.
- Are any DTCs present?
- Yes : For DTC B113E:11, GO to J5.
  For DTC B10C6:01 or B10C6:13, GO to J11.
- No : GO to J7.
J5 REPEAT THE RFA MODULE SELF-TEST
- Disconnect: Exterior Luggage Compartment Lid Release Switch C430.
- Clear the DTCs, then repeat the RFA module self-test.
- Is DTC B113E:11 present?
- Yes : GO to J6.
- No : INSTALL a new exterior luggage compartment lid release switch. REFER to LUGGAGE COMPARTMENT LID RELEASE SWITCH - EXTERIOR . TEST the system for normal operation.
J6 CHECK THE EXTERNAL LUGGAGE COMPARTMENT LID RELEASE SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: RFA Module C2153d.
- Measure the resistance between the luggage compartment lid release switch C430-1, circuit CPL44 (WH/VT), harness side and ground.
  
  Fig 1: Measuring Resistance Between Luggage Compartment Lid Release Switch C430-1, Circuit CPL44 (WH/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : GO to J16.
- No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
J7 CHECK THE RFA MODULE EXTERIOR LUGGAGE COMPARTMENT LID RELEASE SWITCH PID
- Enter the following diagnostic mode on the scan tool: RFA DataLogger.
- Press the external luggage compartment lid release switch while monitoring the RFA module PID (TRUNK_EXT_SW).
- Does the PID indicate that the switch is being pressed?
- Yes : GO to J11.
- No : GO to J8.
J8 CHECK THE EXTERNAL LUGGAGE COMPARTMENT LID RELEASE SWITCH GROUND CIRCUIT FOR AN OPEN
- Disconnect: Negative Battery Cable.
- Disconnect: Exterior Luggage Compartment Lid Release Switch C430.
- Measure the resistance between the exterior luggage compartment lid release switch C430-2, circuit GD149 (BK), harness side and ground.
  
  Fig 2: Measuring Resistance Between Exterior Luggage Compartment Lid Release Switch C430-2, Circuit GD149 (BK) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to J9.
- No : REPAIR the circuit. TEST the system for normal operation.
J9 CHECK THE EXTERIOR LUGGAGE COMPARTMENT LID RELEASE SWITCH
- While monitoring the RFA module PID (TRUNK_EXT_SW), connect a fused jumper wire between the exterior luggage compartment lid release switch C430-1, circuit CPL44 (WH/VT), harness side and the exterior luggage compartment lid release switch C430-2, circuit GD149 (BK), harness side.
  
  Fig 3: Connecting Fused Jumper Wire Between Exterior Luggage Compartment Lid Release Switch C430-1, Circuit CPL44 (WH/VT) And C430-2, Circuit GD149 (BK)
  Courtesy of FORD MOTOR CO.
- Does the PID indicate that the switch is being pressed?
- Yes : INSTALL a new exterior luggage compartment lid release switch. REFER to LUGGAGE COMPARTMENT LID RELEASE SWITCH - EXTERIOR . TEST the system for normal operation.
- No : GO to J10.
J10 CHECK THE EXTERNAL LUGGAGE COMPARTMENT LID RELEASE SWITCH INPUT CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: RFA Module C2153d.
- Measure the resistance between the exterior luggage compartment lid release switch C430-1, circuit CPL44 (WH/VT), harness side and the RFA module C2153d-15, circuit CPL44 (YE/OG), harness side.
  
  Fig 4: Measuring Resistance Between Exterior Luggage Compartment Lid Release Switch C430-1 And RFA Module C2153d-15
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to J16.
- No : REPAIR the circuit. TEST the system for normal operation.
J11 CHECK THE LUGGAGE COMPARTMENT IA ANTENNA
- Ignition OFF.
- Disconnect: Luggage Compartment IA Antenna C4082.
- Measure the resistance between the luggage compartment IA antenna C4082 pin 1, component side and the luggage compartment IA antenna C4082 pin 2, component side.
  
  Fig 5: Measuring Resistance Between Luggage Compartment IA Antenna C4082 Pin 1 And Luggage Compartment IA Antenna C4082 Pin 2
  Courtesy of FORD MOTOR CO.
- Is the resistance between 1 and 10 ohms?
- Yes : GO to J12.
- No : INSTALL a new luggage compartment IA antenna. REFER to LUGGAGE COMPARTMENT INTELLIGENT ACCESS (IA) ANTENNA . TEST the system for normal operation.
J12 CHECK THE LUGGAGE COMPARTMENT EXTERNAL ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE
- Disconnect: RFA Module C2153a.
- Ignition ON.
- Measure the voltage between the luggage compartment IA antenna C4082-1, circuit VPK07 (VT), harness side and ground, and between the luggage compartment IA antenna C4082-2, circuit RPK07 (GN/OG), harness side and ground.
  
  Fig 6: Measuring Voltage Between Liftgate IA Antenna C4082-1, Circuit VPK07 (VT), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes : REPAIR the circuit in question. TEST the system for normal operation.
- No : GO to J13.
J13 CHECK THE LUGGAGE COMPARTMENT EXTERNAL ANTENNA CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between the luggage compartment IA antenna C4082-1, circuit VPK07 (VT), harness side and ground, and between the luggage compartment IA antenna C4082-2, circuit RPK07 (GN/OG), harness side and ground.
  
  Fig 7: Checking Luggage Compartment External Antenna Circuits For Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : GO to J14.
- No : REPAIR the circuit in question. TEST the system for normal operation.
J14 CHECK THE LUGGAGE COMPARTMENT EXTERNAL ANTENNA POWER CIRCUIT FOR AN OPEN
- Measure the resistance between the luggage compartment IA antenna C4082-1, circuit VPK07 (VT), harness side and the RFA module C2153a-15, circuit VPK07 (VT), harness side.
  
  Fig 8: Measuring Resistance Between Luggage Compartment IA Antenna C4082-1 And RFA Module C2153a-15, Circuit VPK07 (VT)
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to J15.
- No : REPAIR the circuit. TEST the system for normal operation.
J15 CHECK THE LUGGAGE COMPARTMENT EXTERNAL ANTENNA RETURN CIRCUIT FOR AN OPEN
- Measure the resistance between the luggage compartment IA antenna C4082-2, circuit RPK07 (GN/OG), harness side and the RFA module C2153a-16, circuit RPK07 (GN/OG), harness side.
  
  Fig 9: Measuring Resistance Between Luggage Compartment IA Antenna C4082-2 And RFA Module C2153a-16, Circuit RPK07 (GN/OG)
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to J16.
- No : REPAIR the circuit. TEST the system for normal operation.
J16 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 MULTIFUNCTION ELECTRONIC MODULES article.. 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.