Pinpoint Test R : The RKE (Remote Keyless Entry) Transmitter Is Inoperative (With Push Button Start)

NOTE: All the customer passive keys need to be present when diagnosing the RKE system

R1 CHECK FOR THE CORRECT PASSIVE KEY

Check that the correct passive keys are used with the vehicle.

Are the correct passive keys present?

Yes

GO to R2

No	The system cannot be tested without the correct passive keys. INFORM the customer the correct passive keys must be present to proceed with diagnosis of the system.

R2 CHECK THE BUTTONS ON THE SUSPECT PASSIVE KEY
- Press the buttons on the passive key (twice for the liftgate latch release).
Do any of the functions operate?

Yes GO to Pinpoint Test S

No GO to R3

R3 CHECK FOR COMMUNICATION WITH THE BCM (BODY CONTROL MODULE) AND RFA (REMOTE FUNCTION ACTUATOR) MODULE
- Ignition ON.
- Using a diagnostic scan tool, carry out a network test.
Does the BCM and the RFA module pass the network test?

Yes GO to R4

No DIAGNOSE the BCM or the RFA module not communicating with the scan tool. Refer to: Communications Network .

R4 CHECK FOR RFA (REMOTE FUNCTION ACTUATOR) MODULE DTC (DIAGNOSTIC TROUBLE CODE) U201F:00, U201F:13, U201F:29 OR U201F:4A
- Using a diagnostic scan tool, carry out the RFA module self-test.
Is DTC U201F:00, U201F:13, U201F:29 or U201F:4A present?

Yes GO to R10

No GO to R5

R5 RESYNCHRONIZE THE INOPERATIVE PASSIVE KEY
- Ignition OFF.
- Ignition ON.
- Ignition OFF.
- Within 30 seconds, press any button on the suspect passive key 3 consecutive times.
- Check the operation of the suspect passive key.
Does the suspect passive key now function?

Yes The system is OK. The concern was caused by a passive key out of synchronization.

No If an individual passive key is inoperative, GO to R6If both passive keys are inoperative, GO to R7

R6 RESYNCHRONIZE THE INOPERATIVE PASSIVE KEY USING THE SECOND PASSIVE KEY
- Press any button on the operational passive key.
- Within 30 seconds, press any button on the suspect passive key.
- Check the operation of the suspect passive key.
Does the suspect passive key now function?

Yes The system is OK. The concern was caused by a passive key out of synchronization.

No GO to R7

R7 CHECK THE PASSIVE KEY PROGRAMMING
- Place the passive key at the backup starting location.
- Attempt to start the vehicle.
Does the vehicle start?

Yes GO to R8

No DIAGNOSE unable to turn the ignition on. Refer to: Passive Anti-Theft System (PATS) .

R8 CHECK THE PASSIVE KEY BATTERY
- Ignition OFF.
- Open the passive key. Refer to the Owner's Literature for the passive key battery replacement procedure.
- Do not clean off any grease from the battery terminals on the back surface of the circuit board.
- Verify the correct battery is used (CR2032).
- Remove the passive key battery and measure the voltage.
Is the voltage greater than 2.5 volts?

Yes GO to R9

No INSTALL a new battery. DO NOT reprogram the passive key (damaged or dead batteries do not erase passive keys from memory).

R9 CHECK FOR NORMAL OPERATION WITH A KNOWN GOOD PASSIVE KEY
- Using a known good or the customer's second passive key, press a button on the passive key.
Is the concern still present?

Yes GO to R10

No REPLACE the inoperative passive key. PROGRAM the passive keys. Refer to: Erase All Keys and Key Programming .

R10 CHECK FOR VOLTAGE TO THE RADIO FREQUENCY (RF) RECEIVER

Ignition OFF.

Disconnect Radio Frequency (RF) Receiver C9026 .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to R12

No	VERIFY the BCM fuse 81 (5A) is OK. If OK, GO to R11 If not OK, REFER to OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION to identify the possible causes of the circuit short.

R11 CHECK THE RADIO FREQUENCY (RF) RECEIVER VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect BCM C2280H .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-3	Courtesy of FORD MOTOR COMPANY	C2280H-19

Is the resistance less than 3 ohms?

Yes

GO to R23

No	REPAIR the circuit.

R12 CHECK THE RADIO FREQUENCY (RF) RECEIVER GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to R13

No	REPAIR the circuit.

R13 CHECK THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT FOR A SHORT TO VOLTAGE

Disconnect RFA Module C2153A .

Disconnect Ignition Relay.

Connect a fused jumper wire:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Ignition relay, cavity 3	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY Ignition relay, cavity 5

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes

GO to R14

No	REMOVE the fused jumper wire. GO to R16

R14 ISOLATE THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT TO THE RFA (REMOTE FUNCTION ACTUATOR) MODULE FOR A SHORT TO VOLTAGE

Disconnect BCM C2280C .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes

GO to R15

No	REMOVE the fused jumper wire. INSTALL the ignition relay. REPAIR circuit VPL56 (BU/GY) for a short to voltage.

R15 ISOLATE THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT TO THE RADIO FREQUENCY (RF) RECEIVER FOR A SHORT TO VOLTAGE

Disconnect BCM C2280H .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REMOVE the fused jumper wire. INSTALL the ignition relay. REPAIR circuit VRT22 (GY/BN) for a short to voltage.

No	REMOVE the fused jumper wire. INSTALL the ignition relay. GO to R23

R16 CHECK THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to R19

GO to R17

R17 ISOLATE THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT TO THE RFA (REMOTE FUNCTION ACTUATOR) MODULE FOR A SHORT TO GROUND

Disconnect BCM C2280C .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes	REPAIR circuit VPL56 (BU/GY) for a short to ground.

GO to R18

R18 ISOLATE THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT TO THE RADIO FREQUENCY (RF) RECEIVER FOR A SHORT TO GROUND

Disconnect BCM C2280H .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to R23

No	REPAIR circuit VRT22 (GY/BN) for a short to ground.

R19 CHECK THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	C2153A-11

Is the resistance less than 3 ohms?

Yes	INSTALL a new Radio Frequency (RF) Receiver. Refer to: Radio Frequency (RF) Receiver . CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the concern is still present, GO to R22

GO to R20

R20 CHECK THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT FOR AN OPEN BETWEEN THE RFA (REMOTE FUNCTION ACTUATOR) MODULE AND THE BCM (BODY CONTROL MODULE)

Disconnect BCM C2280C .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2153A-11	Courtesy of FORD MOTOR COMPANY	C2280B-59

Is the resistance less than 3 ohms?

Yes

GO to R21

No	REPAIR the circuit.

R21 CHECK THE RADIO FREQUENCY (RF) RECEIVER COMMUNICATION CIRCUIT FOR AN OPEN BETWEEN THE RADIO FREQUENCY (RF) RECEIVER THE BCM (BODY CONTROL MODULE)

Disconnect BCM C2280H .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C9026-1	Courtesy of FORD MOTOR COMPANY	C2280H-10

Is the resistance less than 3 ohms?

Yes

GO to R23

No	REPAIR the circuit.

R22 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Disconnect and inspect all RFA module 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 RFA module 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 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 RFA module. Refer to: Remote Function Actuator (RFA) Module .

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.

R23 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all 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 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, Refer to BCM HARDWARE TESTING .

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.