Possible Causes

Network communication concern
RCM concern
BCM
BECMB
Incorrect BECMB configuration
Incorrect BECMB installed

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

NOTE: Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.

NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.

AI1: VERIFY THE CONCERN

WARNING: Before beginning any service procedure in this article, refer to Safety Warnings in General Information article. Failure to follow this instruction may result in serious personal injury. Refer to Pyrotechnic Device Health and Safety Precautions.

Ignition ON, engine OFF.
Verify there is an observable symptom present.

Is an observable symptom present?

Yes	No
Go to AI2.	The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI2: CHECK THE COMMUNICATION NETWORK

Press the Read Vehicle Information button to view the results of the modules communicating on the network.
Retrieve the continuous memory DTCs.

Does the BCM pass the network test?

Yes	No
For RCM, Go to AI3. For BECMB, Go to AI4. For all others, No fault found.	DIAGNOSE the BCM not communicating with the diagnostic scan tool. REFER to Diagnosis and Testing in Module Communications Network article

AI3: CHECK THE RCM CMDTCS

Ignition ON, engine OFF.
Carry out the RCM self-test.
Clear the RCM DTCs.
Wait 10 seconds.
Carry out the RCM self-test.

Is DTC U0140:00 still present?

Yes	No
Go to AI7.	The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

AI4: CHECK THE BECMB CMDTCS

Ignition ON, engine OFF.
Carry out the BECMB self-test.
Clear the BECMB DTCs.
Wait 10 seconds.
Carry out the BECMB self-test.

Is DTC U0140:87 still present?

Yes	No
Go to AI5.	The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

AI5: CHECK FOR THE CORRECT BECMB

Using the Log Viewer function of the diagnostic scan tool, retrieve and record the BECMB part number.
Check the recorded part number against the number listed in the Ford parts catalog.

Does the recorded part number match the number listed in the Ford parts catalog?

Yes	No
Go to AI6.	INSTALL the correct BECMB and use As-Built data when carrying out PMI. REFER to: BECMB Supplemental Restraint System article Go to AI9.

AI6: VERIFY THE BECMB CONFIGURATION

Carry out PMI for the BECMB. Manually enter As-Built data. Refer to the diagnostic scan tool instructions when carrying out PMI.
Clear the BECMB DTCs.
Wait 10 seconds.
Carry out the BECMB self-test.

Is DTC U0140:87 retrieved again?

Yes	No
Go to AI8.	Go to AI9.

AI7: RETRIEVE THE RECORDED DTCS FROM THE RCM

Carry out the RCM self-test.

Is DTCs U3003:16 or U3003:17 recorded?

Yes	No
REFER to the DTC Chart.	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. Go to AI8.

AI8: RETRIEVE THE RECORDED DTCS FROM THE BCM

Carry out the BCM self-test.

Is DTCs U3003:16 or U3003:17 recorded?

Yes	No
REFER to the DTC Chart.	Go to AI9.

AI9: CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the BCM and the RCM. If recent service history is found:
- verify correct replacement module was installed (HVBOM or vehicle parts build list may be used to verify correct part fitment)
- verify the configuration of replacement module was correct (re-configure the module using as-built data if prior configuration is suspect)
- verify the module was not obtained from a like vehicle and installed into vehicle with concern (return the swapped module to source vehicle and obtain new replacement module)
Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes	No
Go to AI10.	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AI10: CHECK FOR CORRECT BCM OPERATION

Ignition OFF.
Disconnect and inspect all the BCM and any related in-line 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 the BCM and any related in-line 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	No
CHECK 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 BCM. REFER to the Removal and Installation procedure in Multifunction Electronic Modules article	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.