LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2023 >> Mustang Mach-E Select, RWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Pinpoint Tests Aa - AZ >> Pinpoint Test AK: B1415:11, B1415:12, B1415:13, B1418:11, B1418:12, B1418:13

Pinpoint Test AK: B1415:11, B1415:12, B1415:13, B1418:11, B1418:12, B1418:13

  1. Refer to SUPPLEMENTAL RESTRAINT SYSTEM for schematic and connector information.

    Normal Operation and Fault Conditions 

    The RCM monitors the passenger front door and driver C-pillar side impact sensors and circuits for the following faults:

    • Open circuit
    • Short to voltage
    • Short to ground
    • Faulted passenger front door side impact sensor
    • Faulted driver C-pillar side impact sensor

    If a fault is detected, the RCM stores DTC B1415:11, B1415:12, B1415:13, B1418:11, B1418:12 or B1418:13 in memory and sends a message to the IPC to illuminate the airbag warning indicator.

    • A short to ground on either impact sensor feed circuit sets DTC B1415:11 and B1418:11.
    • A short to voltage on either impact sensor feed circuit sets DTC B1415:12 and B1418:12.
    • A CMDTC for circuit short to battery (failure type: 12) can be set by a short to voltage on the return circuit of the impact sensor.
    • When the feed circuit of either impact sensor is shorted to voltage, an invalid data received fault (failure type :81) may also be present for both sensors.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    RCM B1415:11 Driver Side Restraints Sensor 2: Circuit Short To Ground A fault is indicated when the RCM senses a shorted passenger front door side impact sensor, a shorted driver C-pillar side impact sensor, a short to ground on the passenger front door side impact sensor feed circuit or a short to ground on the driver C-pillar side impact sensor feed circuit.
    RCM B1415:12 Driver Side Restraints Sensor 2: Circuit Short To Battery A fault is indicated when the RCM senses a faulted driver C-pillar side impact sensor or passenger front door side impact sensor, or a short to voltage on the feed or return circuit of the driver C-pillar side impact sensor or passenger front door side impact sensor.
    RCM B1415:13 Driver Side Restraints Sensor 2: Circuit Open A fault is indicated when the RCM senses a faulted driver C-pillar side impact sensor or an open on the driver C-pillar side impact sensor circuits.
    RCM B1418:11 Passenger Side Restraints Sensor 1: Circuit Short To Ground A fault is indicated when the RCM senses a shorted passenger front door side impact sensor, a shorted driver C-pillar side impact sensor, a short to ground on the passenger front door side impact sensor feed circuit or a short to ground on the driver C-pillar side impact sensor feed circuit.
    RCM B1418:12 Passenger Side Restraints Sensor 1: Circuit Short To Battery A fault is indicated when the RCM senses a faulted driver C-pillar side impact sensor or passenger front door side impact sensor, or a short to voltage on the feed or return circuit of the driver C-pillar side impact sensor or passenger front door side impact sensor.
    RCM B1418:13 Passenger Side Restraints Sensor 1: Circuit Open A fault is indicated when the RCM senses a faulted passenger front door side impact sensor or an open on the passenger front door side impact sensor circuits.

    Possible Sources 

    • Wiring, terminals or connectors
    • Passenger front door side impact sensor
    • Driver C-pillar side impact sensor
    • RCM

    Visual Inspection and Pre-checks 

    • Inspect for damaged wiring harness(es).

    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: 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: SRS components should only be disconnected or reconnected 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.
    NOTE: Do not probe any impact sensor. The impact sensor cannot be tested using a multi-meter.

  2. AK1 RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information. Failure to follow this instruction may result in serious personal injury.

    REFER to: Pyrotechnic Device Health and Safety Precautions .

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Were any Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test? 

    Yes  The fault(s) cannot be cleared until corrected and the Diagnostic Trouble Codes (DTCs) are no longer retrieved on-demand during self-test.For DTC B1415:11 or B1418:11, GO to AK2 For DTC B1415:12 or B1418:12, GO to AK6 For DTC B1415:13, GO to AK8 For DTC B1418:13, GO to AK11 
    No  The fault is intermittent when present as a CMDTC only. GO to AK15 

  3. AK2 CHECK THE DRIVER SIDE RESTRAINTS SENSOR 2 DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)

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

    • Ignition OFF.

    • Disconnect Driver C-Pillar Side Impact Sensor C3210.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Did the on-demand Diagnostic Trouble Codes (DTCs) change from B1418:11 to B1418:13? 

    Yes  INSTALL a new driver C-pillar side impact sensor. REFER to: C-Pillar Side Impact Sensor . GO to AK16 
    No  GO to AK3 

  4. AK3 CHECK THE PASSENGER SIDE RESTRAINTS SENSOR 1 DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)

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

    • Ignition OFF.

    • Connect Driver C-Pillar Side Impact Sensor C3210.

    • Disconnect Passenger Door Side Impact Sensor C644.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Did the on-demand DTC change from B1418:11 to B1418:13? 

    Yes  INSTALL a new passenger front door side impact sensor. REFER to: Front Door Side Impact Sensor . GO to AK16 
    No  GO to AK4 

  5. AK4 CHECK THE DRIVER C-PILLAR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS

    • Ignition OFF.

    • Disconnect Driver C-Pillar Side Impact Sensor C3210.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3210 Pin 1
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 Ground

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3210 Pin 1
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C3210 Pin 2

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to AK5 
    No  REPAIR the affected circuit(s). Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 

  6. AK5 CHECK THE PASSENGER FRONT DOOR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C644 Pin 1
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 Ground

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C644 Pin 1
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C644 Pin 2

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to AK14 
    No  REPAIR the affected circuit(s). Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 

  7. AK6 CHECK THE DRIVER C-PILLAR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO VOLTAGE (CIRCUIT SHORT TO BATTERY INDICATED)

    • Ignition OFF.

    • Disconnect Driver C-Pillar Side Impact Sensor C3210.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3210 Pin 1
      GFD769508Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3210 Pin 2
      GFD769508Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuits. Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 
    No  GO to AK7 

  8. AK7 CHECK THE PASSENGER FRONT DOOR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO VOLTAGE (CIRCUIT SHORT TO BATTERY INDICATED)

    • Ignition OFF.

    • Disconnect Passenger Door Side Impact Sensor C644.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C644 Pin 1
      GFD769508Courtesy of FORD MOTOR COMPANY
      		 Ground
      C644 Pin 2
      GFD769508Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the affected circuits. Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 
    No  GO to AK14 

  9. AK8 CHECK THE DRIVER C-PILLAR SIDE IMPACT SENSOR AND RCM (RESTRAINTS CONTROL MODULE) CONNECTIONS (CIRCUIT OPEN)

    • Ignition OFF.

    • Gain access to the driver C-pillar side impact sensor and inspect C3210 to make sure it is fully seated and locked. Seat and lock the connector as necessary.

    • Gain access to the RCM and inspect C310A and C310B to make sure they are fully seated and locked. Seat and lock the connector(s) as necessary.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Was DTC B1415:13 retrieved on-demand during self-test? 

    Yes  GO to AK9 
    No  The fault is corrected. GO to AK16 

  10. AK9 CHECK THE DRIVER C-PILLAR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (CIRCUIT OPEN)

    • Ignition OFF.

    • Disconnect Driver C-Pillar Side Impact Sensor C3210.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310B Pin 46
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C3210 Pin 1
      C310B Pin 45
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C3210 Pin 2

    Are the resistances less than 0.5 ohm? 

    Yes  GO to AK10 
    No  REPAIR the affected circuit. Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 

  11. AK10 CHECK THE DRIVER SIDE RESTRAINTS SENSOR 2 DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (CIRCUIT OPEN)

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

    • Connect a fused jumper wire:
      Lead 1 Measurement / Action Lead 2
      C3210 Pin 1
      GFD769507Courtesy of FORD MOTOR COMPANY
      		 C3210 Pin 2

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Did the DTC change from B1415:13 to B1418:11? 

    Yes  REMOVE the fused jumper wire and INSTALL a new driver C-pillar side impact sensor. REFER to: C-Pillar Side Impact Sensor . GO to AK16 
    No  REMOVE the fused jumper wire and GO to AK14 

  12. AK11 CHECK THE PASSENGER FRONT DOOR SIDE IMPACT SENSOR AND RCM (RESTRAINTS CONTROL MODULE) CONNECTIONS (CIRCUIT OPEN)

    • Ignition OFF.

    • Gain access to the passenger door side impact sensor and inspect C644 to make sure it is fully seated and locked. Seat and lock the connector as necessary.

    • Gain access to the RCM and inspect C310A and C310B to make sure they are fully seated and locked. Seat and lock the connector(s) as necessary.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Was DTC B1418:13 retrieved on-demand during self-test? 

    Yes  GO to AK12 
    No  The fault corrected. GO to AK16 

  13. AK12 CHECK THE PASSENGER FRONT DOOR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (CIRCUIT OPEN)

    • Ignition OFF.

    • Disconnect Passenger Door Side Impact Sensor C644.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310B Pin 31
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C644 Pin 1
      C310B Pin 32
      GFD769505Courtesy of FORD MOTOR COMPANY
      		 C644 Pin 2

    Are the resistances less than 0.5 ohm? 

    Yes  GO to AK13 
    No  REPAIR the affected circuit. Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information. GO to AK16 

  14. AK13 CHECK THE PASSENGER SIDE RESTRAINTS SENSOR 1 DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (CIRCUIT OPEN)

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

    • Connect a fused jumper wire:
      Lead 1 Measurement / Action Lead 2
      C644 Pin 1
      GFD769507Courtesy of FORD MOTOR COMPANY
      		 C644 Pin 2

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Did the DTC change from B1418:13 to B1418:11? 

    Yes  REMOVE the fused jumper wire and INSTALL a new passenger front door side impact sensor. REFER to: Front Door Side Impact Sensor . GO to AK16 
    No  REMOVE the fused jumper wire and GO to AK14 

  15. AK14 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) will be recorded.

    • Ignition OFF.

    • 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 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 OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information.

    • Connect Driver C-Pillar Side Impact Sensor C3210.

    • Connect Passenger Door Side Impact Sensor C644.

    • 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM. REFER to: Restraints Control Module (RCM) . GO to AK16 
    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 AK15 

  16. AK15 CHECK FOR AN INTERMITTENT FAULT

    • Ignition OFF.

    • Disconnect Passenger Door Side Impact Sensor C644.

    • Disconnect Driver C-Pillar Side Impact Sensor C3210.

    • Inspect:

      • harness and component connectors for loose or spread terminals and loose or frayed wire connections at terminals.
      • wiring harness for any damage, pinched, cut or pierced wires.
      • RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. REFER to: Restraints Control Module (RCM) .
      • repair any concerns found. Refer to OEM_CONNECTOR_REPAIR_PROCEDURES for schematic and connector information.

    • Connect Passenger Door Side Impact Sensor C644.

    • Connect Driver C-Pillar Side Impact Sensor C3210.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out RCM self-test.

    Was DTC B1415:11, B1415:12, B1415:13, B1418:11, B1418:12 or B1418:13 retrieved on-demand during self-test? 

    Yes  The fault(s) cannot be cleared until corrected and the DTC is no longer retrieved on-demand during self-test.For DTC B1415:11 or B1418:11, GO to AK2 For DTC B1415:12 or B1418:12, GO to AK6 For DTC B1415:13, GO to AK8 For DTC B1418:13, GO to AK11 
    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 AK16 

  17. AK16 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition OFF.

    • Connect all  previously disconnected SRS components.

    • Ignition ON.

    • NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM, OCSM and BECMB.

      Using a diagnostic scan tool, perform RCM 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. DIAGNOSE and REPAIR the Diagnostic Trouble Codes (DTCs). REFER to Diagnostic Trouble Code (DTC) Chart
    No  The repair is complete. RETURN the vehicle to the customer.
scientia non olet · About LEMON Manuals