PINPOINT TEST AI: DTCs B11D8:12 and B11D8:14

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy and cause serious personal injury or death.

NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage 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 Supplemental Restraint System (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: Install new components only when directed to do so in the pinpoint test.

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 parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.

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

AI1 RETRIEVE RCM DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was DTC B11D8:12 or B11D8:14 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 the self-test.
  For DTC B11D8:12, GO to AI4.
  
  For DTC B11D8:14, GO to AI2.
- No : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to AI7.
AI2 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: RCM C310A and C310B.
- Disconnect: FPCM C433.
- Measure the resistance between RCM C310A-19, circuit CR167 (YE/VT), harness side, and FPCM C433-6, circuit CR167 (YE/VT), harness side.
  
  Fig 1: Measuring Resistance Between RCM C310A-19, Circuit CR167 (YE/VT) And FPCM C433-6, Circuit CR167 (YE/VT)
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes : GO to AI3.
- No : REPAIR circuit CR167 (YE/VT). Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to AI8.
AI3 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between FPCM C433-6, circuit CR167 (YE/VT), harness side, and ground.
  
  Fig 2: Measuring Resistance Between FPCM C433-6, Circuit CR167 (YE/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : INSTALL a new FPCM. REFER to FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 3.5L GTDI , FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM 3.7L , FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 5.0L (4V) or FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 6.2L (2V) . CONNECT all RCM connectors. REPOWER the SRS. Do not prove out the SRS at this time. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
  CLEAR the RCM DTCs and REPEAT the self-test.
  
  If DTC B11D8:14 returns, GO to AI6.
  
  If no RCM DTCs are retrieved, GO to AI8.
  
  If RCM DTCs other than B11D8:14 are retrieved, REFER to the Restraints Control Module (RCM) DTC Chart to diagnose those DTCs.
- No : REPAIR circuit CR167 (YE/VT). Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to AI8.
AI4 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT DTC FOR A FAULT STATUS CHANGE
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.
  WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Disconnect: FPCM C433.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was DTC B11D8:12 retrieved on-demand during self-test?
- Yes : GO to AI5.
- No : INSTALL a new FPCM. REFER to FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 3.5L GTDI , FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM 3.7L , FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 5.0L (4V) or FUEL CHARGING SYSTEM & FUEL CONTROL SYSTEM - 6.2L (2V) . GO to AI8.
AI5 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: RCM C310A and C310B.
- Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Measure the voltage between FPCM C433-6, circuit CR167 (YE/VT), harness side, and ground.
  
  Fig 3: Measuring Voltage Between FPCM C433-6, Circuit CR167 (YE/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes : REPAIR circuit CR167 (YE/VT). Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to AI8.
- No : GO to AI6.
AI6 CONFIRM THE RCM FAULT
NOTE: Make sure all SRS electrical connectors and the FPCM electrical connector are connected before carrying out the self-test. If not, DTCs will be recorded.
- Ignition OFF.
- Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: FPCM C433.
- Disconnect: RCM C310A and C310B.
- Prior to reconnecting any previously disconnected SRS component:
  - inspect connector(s) (including any in-line connectors) for pushed out, loose or spread terminals and loose or frayed wire connections at terminals.
  - inspect wire harness for any damage, pinched, cut or pierced wires.
  - repair any concerns found. Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information.
- Connect: FPCM C433.
- Connect: RCM C310A and C310B.
- Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was the original DTC retrieved on-demand during self-test?
- Yes : INSTALL a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to AI8.
- No : In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test . GO to AI7.
AI7 CHECK FOR AN INTERMITTENT FAULT
- Ignition OFF.
  WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Disconnect: FPCM C433.
  - inspect connector(s) (including any in-line connectors) for pushed out, loose or spread terminals and loose or frayed wire connections at terminals.
  - inspect wire harness for any damage, pinched, cut or pierced wires.
  - repair any concerns found. Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information.
- Connect: FPCM C433.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was DTC B11D8:12 or B11D8:14 retrieved on-demand during self-test?
- Yes : The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test.
  For DTC B11D8:14, GO to AI2.
  
  For DTC B11D8:12, GO to AI4.
- No : CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . REPAIR any intermittent concerns found. GO to AI8.
AI8 CHECK FOR ADDITIONAL SRS DTCs
- Ignition OFF.
  WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Connect: All Previously Disconnected Component(s)/Connector(s).
- If previously directed to depower the SRS, repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - Restraints.
  NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM.
- Are any RCM and/or OCSM DTCs retrieved?
- Yes : Do not clear any DTCs until all DTCs have been resolved. GO to the DTC CHARTS for pinpoint test direction.
- No : CLEAR all RCM and OCSM Continuous Memory Diagnostic Trouble Codes (CMDTCs). PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.