LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test AH: DTCs U200E:11, U200E:12 and U200E:1A >> PINPOINT TEST AH: DTCs U200E:11, U200E:12 AND U200E:1A

PINPOINT TEST AH: DTCs U200E:11, U200E:12 AND U200E:1A

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: Never probe the electrical connectors on airbag, Safety Canopy or side air curtain assemblies. Failure to follow this instruction may result in the accidental deployment of these assemblies, which increases the risk of serious personal injury or death.
WARNING: Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never back probe deployable device electrical connectors. Tampering or back probing may cause an accidental deployment and result in personal injury or death.
NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making 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: Do not install any new Occupant Classification System (OCS) components until directed to do so. OCS components should only be installed 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.
  1. AH1 RETRIEVE OCSM DTCs 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
    • Was DTC U200E:11, U200E:12 or U200E:1A retrieved during self-test? 
    • Yes  : The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self test. GO to AH2.
    • No  : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to  AH8.
  2. AH2 CHECK THE SEAT WIRING AND CONNECTORS 
    • 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.
    • Carry out a thorough inspection of the OCS wiring, terminals and connectors, jumper harness, BTS connector and connections, wiring harness routing and the related seat wiring harness and body wiring harness terminals and connectors.
    • Were any problems noted? 
  3. AH3 CHECK FOR CONTROL MODULE OUTPUT POWER B DTC FAULT STATUS CHANGE 
    NOTE: This pinpoint test step attempts to change the fault reported by the OCSM by inducing a different fault condition. If the fault reported changes, this indicates the OCSM is functioning correctly and is not the source of the fault.
    • Disconnect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Clear DTCs - OCSM.
    • Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
    • DIAGNOSTIC TIP:  When viewing DTCs with the BTS disconnected, open sensor circuit faults are normally retrieved.
    • Was DTC U200E:11, B1A59:11, U200E:12 or U200E:1A retrieved during self-test? 
    • Yes  : For DTC U200E:11, GO to AH4.

      For DTC U200E:12, GO to  AH5.

      For DTC U200E:1A, GO to  AH6.

    • No  : INSPECT the BTS harness, connectors and terminals for damage. If a concern is found, REPAIR the harness. Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to  AH9.

      If a concern was not  found, INSTALL a new passenger safety belt retractor assembly. REFER to SAFETY BELT SYSTEM . GO to  AH9.

  4. AH4 CHECK THE BTS VREF CIRCUIT FOR A SHORT TO GROUND 
    • 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: OCSM C3159.
    • Measure the resistance between OCSM C3159-11, circuit LR142 (YE/BU), harness side and ground.
      Fig 1: Measuring Resistance Between OCSM C3159-11, Circuit LR142 (YE/BU) And Ground
      G07966137Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
    • Yes  : GO to  AH7.
    • No  : REPAIR circuit LR142 (YE/BU). Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to  AH9.
  5. AH5 CHECK THE BTS VREF CIRCUIT FOR A SHORT TO VOLTAGE 
    • Yes  : REPAIR circuit LR142 (YE/BU). Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to  AH9.
    • No  : GO to  AH7.
  6. AH6 CHECK THE BTS VREF CIRCUIT FOR A SHORT TO THE WEIGHT SENSOR VREF CIRCUIT(S) 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: OCSM C3159.
    • Disconnect: OCS Weight Sensor Bolts C3330 and C3331.
    • Disconnect: Passenger Seat Side Air Bag C339.
    • 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 resistance between OCSM C3159-11, circuit LR142 (YE/BU), harness side and OCSM C3159-8, circuit CR153 (GN/WH), harness side.
      Fig 3: Measuring Resistance Between OCSM C3159-11, Circuit LR142 (YE/BU) And OCSM C3159-8, Circuit CR153 (GN/WH)
      G07966139Courtesy of FORD MOTOR CO.
    • Measure the resistance between OCSM C3159-11, circuit LR142 (YE/BU), harness side and OCSM C3159-17, circuit CR154 (VT/OG), harness side.
      Fig 4: Measuring Resistance Between OCSM C3159-11, Circuit LR142 (YE/BU) And OCSM C3159-17, Circuit CR154 (VT/OG)
      G07966140Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
    • Yes  : REPAIR the affected circuits. Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to  AH9.
    • No  : GO to AH7.
  7. AH7 CONFIRM THE OCSM FAULT 
    NOTE: Make sure all restraint system sensor electrical connectors and the RCM 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 .
    • 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: OCSM C3159.
    • Connect: BTS C3238/C829.
    • 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: Clear DTCs - OCSM.
    • Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
    • Was DTC U200E:11, U200E:12 or U200E:1A retrieved during self-test? 
    • Yes  : INSTALL a new OCSM. REFER to OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) . GO to  AH9.
    • 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  AH8.
  8. AH8 CHECK FOR AN INTERMITTENT FAULT 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
      • inspect connector(s) (including any in-line connectors) for corrosion, 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: 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) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Clear DTCs - OCSM.
    • Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
    • Was DTC U200E:11, U200E:12 or U200E:1A retrieved 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 during the on-demand self test.

      GO to  AH2.

    • No  : CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key 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  . Refer to OEM Wiring Diagrams - Connector Repair Procedures for schematic and connector information. GO to  AH9.
  9. AH9 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.
    • Reconnect all SRS components (if previously disconnected).
    • 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 CMDTCs. PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.
scientia non olet · About LEMON Manuals