Ford Ecosport: Supplemental Restraint System / Diagnosis and Testing - Pinpoint Test - DTC: AF, Vehicles With: Rear Seat Side Airbag

BXXXX:4A (any BXXXX DTC with a 4A failure type) Incorrect Component Installed

Normal Operation and Fault Conditions

The RCM monitors all SRS device connections. If the RCM detects a device connected but is not configured for that component, the RCM sets a DTC and sends a message to the IPC to illuminate airbag warning indicator.

  DTC Fault Trigger Conditions

Possible Causes

• RCM not configured or configured incorrectly
• Incorrect RCM installed
• Incorrect impact sensor installed

Visual Inspection and Diagnostic Pre-checks

• Review recent service history to identify repairs where an incorrect component may have been installed.

WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.

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, Diagnostic Trouble Codes (DTCs) may set.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

A1 RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury. REFER to: Pyrotechnic Device Health and Safety Precautions (100-00 General Information, Description and Operation). Ignition ON. Using a diagnostic scan tool, carry out RCM self-test. Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test? Yes This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during self-test. If DTC U3003:16 or U3003:17 is also retrieved on-demand, REFER to: Pinpoint Test - DTC: AM, Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing). If DTC U3003:16 or U3003:17 is not retrieved on-demand during self-test, DIAGNOSE those Diagnostic Trouble Codes (DTCs). GO to A2 No If DTC U3003:16 or U3003:17 is also retrieved on-demand, REFER to: Pinpoint Test - DTC: AM, Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing). If DTC U3003:16 or U3003:17 is not retrieved on-demand during self-test, DIAGNOSE the Continuous Memory Diagnostic Trouble Codes (CMDTCs). This is an intermittent fault when present as a CMDTC only. GO to A5

A2 CHECK THE RCM (RESTRAINTS CONTROL MODULE) PART NUMBER

Ignition ON. Using the Log Viewer function of the diagnostic scan tool, retrieve and record the RCM part number. Check the part number recorded against the number listed in the Ford parts catalog and verify the correct RCM is installed in the vehicle. Is the correct RCM installed? Yes GO to A3 No INSTALL the correct RCM . REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation). GO to A6

A3 VERIFY THE RCM (RESTRAINTS CONTROL MODULE) CONFIGURATION

Carry out PMI for the RCM . Use As-Built data when carrying out PMI . Refer to the diagnostic scan tool instructions to carry out PMI . Using a diagnostic scan tool, carry out RCM self-test. Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test? Yes For DTC B1413:4A, B1414:4A, B1415:4A, B1417:4A, B1418:4A or B1419:4A, GO to A4 For all other incorrect component installed Diagnostic Trouble Codes (DTCs), 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 RCM . REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation). GO to A6 No The fault is corrected. GO to A6

A4 VERIFY THE SUSPECT IMPACT SENSOR PART NUMBER

Ignition OFF. Depower the SRS . REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Gain access to the suspect impact sensor(s) for which incorrect component installed Diagnostic Trouble Codes (DTCs) were retrieved. Refer to the table for the appropriate procedure(s).   DTC Component Procedure B1413:4A Driver front impact severity sensor   REFER to: Front Impact Severity Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). B1414:4A Driver front door side impact sensor   REFER to: Front Door Side Impact Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). B1415:4A Driver C-pillar side impact sensor   REFER to: C-Pillar Side Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). B1417:4A Passenger front impact severity sensor   REFER to: Front Impact Severity Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). B1418:4A Passenger front door side impact sensor   REFER to: Front Door Side Impact Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). B1419:4A Passenger C-pillar side impact sensor   REFER to: C-Pillar Side Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). Record the part number from each suspect impact sensor. Check the part number(s) recorded against the number listed in the Ford parts catalog and verify that each suspect impact sensor installed in the vehicle is correct. Do the part numbers of all suspect impact sensors match the part numbers listed in the Ford parts catalog? 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 RCM . REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation). GO to A6 No INSTALL the correct impact sensor(s) as necessary. For DTC B1413:4A or B1417:4A, REFER to: Front Impact Severity Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). For DTC B1414:4A or B1418:4A, REFER to: Front Door Side Impact Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation). For DTC B1415:4A or B1419:4A, REFER to: C-Pillar Side Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). GO to A6

A5 CHECK FOR AN INTERMITTENT FAULT

Using a diagnostic scan tool, clear RCM Diagnostic Trouble Codes (DTCs). Using a diagnostic scan tool, carry out RCM self-test to retrieve Diagnostic Trouble Codes (DTCs). Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test? 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 RCM . REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation). GO to A6 No Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to A6

A6 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition OFF. If previously directed to depower the SRS , repower the SRS . REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures). Ignition ON. Using a diagnostic scan tool, carry out RCM self-test. Are any RCM Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test? Yes Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. DIAGNOSE and REPAIR the RCM Diagnostic Trouble Codes (DTCs). REFER to: Airbag Supplemental Restraint System (SRS) - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing). No CLEAR all RCM Continuous Memory Diagnostic Trouble Codes (CMDTCs). PROVE OUT the SRS . The repair is complete. RETURN the vehicle to the customer.