Ford Ecosport Owners and Service Manuals

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

Ford Ecosport 2014-2024 Service and Repair Manual / Body and Paint / Supplemental Restraint System / Diagnosis and Testing - Pinpoint Test - DTC: O, Vehicles With: Rear Seat Side Airbag

B00B5:11, B00B5:12, B00B5:13, B00B5:1D


Refer to Wiring Diagrams Cell 46 for schematic and connector information.

Normal Operation and Fault Conditions

The RCM continuously monitors the driver seat position sensor circuits for the following faults:

  • Open circuit
  • Short to voltage
  • Short to ground
  • Current out of range
  • Faulted driver seat position sensor

If a fault is detected, the RCM stores DTC B00B5:11, B00B5:12, B00B5:13 or B00B5:1D in memory and sends a message to the IPC to illuminate the airbag warning indicator.


  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B00B5:11 Driver Seat Track Position Restraints Sensor: Circuit Short to Ground A fault is indicated when the RCM senses a short to ground on the driver seat position sensor circuit for more than 6 seconds.
B00B5:12 Driver Seat Track Position Restraints Sensor: Circuit Short to Battery A fault is indicated when the RCM senses a short to voltage on the driver seat position sensor circuit for more than 6 seconds.
B00B5:13 Driver Seat Track Position Restraints Sensor: Circuit Open A fault is indicated when the RCM senses an open on either driver seat position sensor circuit for more than 6 seconds.
B00B5:1D Driver Seat Track Position Restraints Sensor: Circuit Current Out of Range A fault is indicated when the RCM measures current outside of an acceptable range on the driver seat position sensor circuit for more than 6 seconds.

Possible Sources

  • Wiring, terminals or connectors
  • Driver seat position sensor
  • RCM

PINPOINT TEST A: B00B5:11, B00B5:12, B00B5:13 AND B00B5:1D
  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.
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
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.

Was DTC B00B5:11, B00B5:12, B00B5:13 and B00B5:1D retrieved on-demand during self-test?
Yes 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 driver seat position sensor Diagnostic Trouble Codes (DTCs).
This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test.
For DTC B00B5:11 or B00B5:1D, GO to A2
For DTC B00B5:12, GO to A4
For DTC B00B5:13, GO to A5
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 driver seat position sensor Continuous Memory Diagnostic Trouble Codes (CMDTCs).
This is an intermittent fault when present as a CMDTC only. GO to A10

A2 CHECK THE DRIVER SEAT POSITION SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND OR CURRENT OUT OF RANGE INDICATED)

NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

  • Ignition OFF.
  • Disconnect Driver Seat Position Sensor C356.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out RCM self-test.
  • DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the driver seat position sensor disconnected, an open circuit fault is normally retrieved.

Did the on-demand DTC change from B00B5:11 or B00B5:1D to B00B5:13?
Yes GO to A8
No For DTC B00B5:11, GO to A3
For DTC B00B5:1D, GO to A9

A3 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Disconnect RCM C310A and C310B.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C356-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A9
No REPAIR the circuit.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.
GO to A11

A4 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Disconnect RCM C310A and C310B.
  • Disconnect C3049 (driver side).
  • Disconnect Driver Seat Position Sensor C356.
  • Repower the SRS . Do not prove out the SRS at this time.
    REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C356-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.
GO to A11
No GO to A9

A5 CHECK THE DRIVER SEAT POSITION SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (OPEN INDICATED)

NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Disconnect C3049 (driver side).
  • Disconnect Driver Seat Position Sensor C356.
  • Connect a fused jumper wire:
    Click to display connectors
    Lead 1 Measurement / Action Lead 2
      C356-2   C356-1
  • Repower the SRS . Do not prove out the SRS at this time.
    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.
  • DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the driver seat position sensor circuits shorted together, a short to ground fault is normally retrieved.

Did the on-demand DTC change from B00B5:13 to B00B5:11?
Yes REMOVE the fused jumper wire and GO to A8
No REMOVE the fused jumper wire and GO to A6

A6 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Disconnect RCM C310A and C310B.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C310B-41   C356-2

Is the resistance less than 0.5 ohm?
Yes GO to A7
No REPAIR the circuit.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.
GO to A11

A7 CHECK THE DRIVER SEAT POSITION SENSOR GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C356-1   C310B-53

Is the resistance less than 3 ohms?
Yes GO to A9
No REPAIR the circuit.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.
GO to A11

A8 CONFIRM THE DRIVER SEAT POSITION SENSOR FAULT

NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) are recorded.

  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Prior to reconnecting any previously disconnected SRS component:
    • inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
    • inspect wiring harness for any damaged, pinched, cut or pierced wires.
    • inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
    • repair any concerns found.
      Refer to Wiring Diagrams Cell 5 for schematic and connector information.
  • Connect C3049 (driver side, if previously disconnected).
  • Connect Driver Seat Position Sensor C356.
  • Repower the SRS . Do not prove out the SRS at this time.
    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.

Was the original DTC retrieved on-demand during self-test?
Yes INSTALL a new driver seat position sensor.
REFER to: Seat Position Sensor (501-20B Supplemental Restraint System, Removal and Installation).
GO to A11
No In the process of diagnosing the fault, the fault condition has become intermittent. 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 A10

A9 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT

NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) are recorded.

  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Prior to reconnecting any previously disconnected SRS component:
    • inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
    • inspect wiring harness for any damaged, pinched, cut or pierced wires.
    • inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
    • repair any concerns found.
      Refer to Wiring Diagrams Cell 5 for schematic and connector information.
  • Connect RCM C310A and C310B (if previously disconnected).
  • Connect C3049 (driver side, if previously disconnected).
  • Connect Driver Seat Position Sensor C356.
  • Repower the SRS . Do not prove out the SRS at this time.
    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.

Was the original DTC 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 A11
No In the process of diagnosing the fault, the fault condition has become intermittent. 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 A10

A10 CHECK FOR AN INTERMITTENT FAULT
  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Disconnect Driver Seat Position Sensor C356.
    • Inspect connector(s) (including any inline connectors) for corrosion, loose or spread terminals and loose or frayed wire connections at terminals.
    • Inspect wiring harness for any damage, pinched, cut or pierced wires.
    • Inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
    • Repair any concerns found.
      Refer to Wiring Diagrams Cell 5 for schematic and connector information.
  • Connect all previously disconnected component(s) / connector(s).
  • Repower the SRS . Do not prove out the SRS at this time.
    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.

Was DTC B00B5:11, B00B5:12, B00B5:13 and B00B5:1D retrieved on-demand during self-test?
Yes This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test.
For DTC B00B5:11 or B00B5:1D, GO to A2
For DTC B00B5:12, GO to A4
For DTC B00B5:13, GO to A5
No The fault is not present and cannot be recreated at this time. 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 A11

A11 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Reconnect all SRS components (if previously disconnected).
  • Repower the SRS . Do not prove out the SRS at this time.
    REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).
  • Ignition ON.
  • NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM , OCSM and, if equipped, BECMB . Using a diagnostic scan tool, carry out Restraints self-test.

Are any RCM , OCSM and/or BECMB 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.
No The repair is complete. RETURN the vehicle to the customer.


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