Pinpoint Test AP : The Passive Entry Feature Is Inoperative

NOTE: The passive entry feature is a programmable parameter and can be enabled/disabled with a scan tool. If the feature is disabled, the passive entry feature to enter the vehicle and passive starting is inoperative. To start the vehicle, the passive key must be placed in the backup starting location.

AP1 CHECK THE DOOR LOCK OPERATION
- Lock and unlock the doors using a door lock control switch.
Do the doors lock and unlock?

Yes GO to AP2.

No GO to Pinpoint Test AD .

AP2 CHECK THE KEYLESS ENTRY KEYPAD OPERATION
- Press the 7/8 and 9/0 buttons simultaneously on the keyless entry keypad.
Do the doors lock using the keyless entry keypad?

Yes GO to AP3.

No GO to Pinpoint Test AI .

AP3 CHECK THE RKE OPERATION
- Press the unlock button on the passive key.
Does the driver door unlock?

Yes GO to AP4.

No GO to Pinpoint Test AL .

AP4 CHECK THE KEYLESS ENTRY ANTENNA

Ignition OFF.

Disconnect: Keyless Entry Antenna C735 .

Measure the resistance between the keyless entry antenna C735 pin 1, component side and the keyless entry antenna C735 pin 2, component side.

Positive Lead	Measurement / Action	Negative Lead
C735-1, component side	Courtesy of FORD MOTOR COMPANY	C735-2, component side

Is the resistance between 0.8 and 1.5 ohm?

Yes	GO to AP5.
No	INSTALL a new keyless entry antenna. REFER to Intelligent Access (IA) Antenna .

AP5 CHECK THE EXTERNAL ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE

Disconnect: RFA Module C4392E .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C735-1	Courtesy of FORD MOTOR COMPANY	Ground
C735-2	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit in question.
No	GO to AP6.

AP6 CHECK THE EXTERNAL ANTENNA CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C735-1	Courtesy of FORD MOTOR COMPANY	Ground
C735-2	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes	GO to AP7.
No	REPAIR the circuit in question.

AP7 CHECK THE EXTERNAL ANTENNA CIRCUITS FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C735-1	Courtesy of FORD MOTOR COMPANY	C4392E-17
C735-2	Courtesy of FORD MOTOR COMPANY	C4392E-18

Are the resistances less than 3 ohms?

Yes	GO to AP8.
No	REPAIR the circuit in question.

AP8 CHECK FOR CORRECT RFA MODULE OPERATION

Disconnect and inspect all RFA module connectors.

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

Reconnect the RFA module 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 On-Line Automotive Service Information System (OASIS) for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RFA Module. REFER to Multifunction Electronic Modules .
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.