PINPOINT TEST AA: DTCs B0061:11, B0061:12 AND B0061:13

WARNING: This page is about a different car, the 2012 Ford Pickup. 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.

WARNING: Never probe the electrical connectors on air bag, Safety Canopy® or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, 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 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: 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.

AA1 RETRIEVE OCSM DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
- Was DTC B0061:11, B0061:12 or B0061:13 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 B0061:11 or B0061:12, GO to AA2.
    
    For DTC B0061:13, GO to AA8.
  - No : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to AA12.
AA2 CHECK THE BTS
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.
- 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: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
- DIAGNOSTIC TIP: When viewing DTCs with the BTS disconnected, an open circuit fault is normally retrieved.
- Was DTC B0061:11 or B0061:12 retrieved on-demand during self-test?
  - Yes : For DTC B0061:11, GO to AA3.
    For DTC B0061:12, GO to AA5.
  - No : INSTALL a new passenger safety belt retractor pretensioner assembly (includes BTS). REFER to SAFETY BELT SYSTEM . GO to AA13.
AA3 CHECK THE BTS CIRCUITS 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.
- For regular cab and Crew Cab vehicles, measure the resistance between BTS C3238-1, circuit VR210 (BU/BN), harness side and ground.
  
  Fig 1: Measuring Resistance Between BTS C3238-1, Circuit VR210 (BU/BN), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the resistance between BTS C829-1, circuit VR210 (BU/BN), harness side and ground.
  
  Fig 2: Measuring Resistance Between BTS C829-1, Circuit VR210 (BU/BN), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10, 000 ohms?
  - Yes : GO to AA4.
  - No : REPAIR circuit VR210 (BU/BN). Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
AA4 CHECK THE BTS VREF CIRCUIT FOR AN OPEN
- For regular cab and Crew Cab vehicles, measure the resistance between BTS C3238-3, circuit LR142 (YE/BU), harness side and OCSM C3159-11, circuit LR142 (YE/BU), harness side.
  
  Fig 3: Measuring Resistance Between BTS C3238-3, Circuit LR142 (YE/BU) And OCSM C3159-11, Circuit LR142 (YE/BU), Harness Side
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the resistance between BTS C829-3, circuit LR142 (YE/BU), harness side and OCSM C3159-11, circuit LR142 (YE/BU), harness side.
  
  Fig 4: Measuring Resistance Between BTS C829-3, Circuit LR142 (YE/BU), Harness Side And OCSM C3159-11, Circuit LR142 (YE/BU), Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
  - Yes : GO to AA5.
  - No : REPAIR circuit LR142 (YE/BU). Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
AA5 CHECK THE BTS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
- Disconnect: Passenger Seat Side Air Bag Module C339.
- Disconnect: BTS C3238 (regular cab and Crew Cab)/C829(SuperCab).
- Disconnect: OCSM C3159.
- Repower the SRS. Do not prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
- Ignition ON.
- For regular cab and Crew Cab vehicles, measure the voltage between BTS C3238-1, circuit VR210 (BU/BN), harness side and ground.
  
  Fig 5: Measuring Voltage Between BTS C3238-1, Circuit VR210 (BU/BN), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the voltage between BTS C829-1, circuit VR210 (BU/BN), harness side and ground.
  
  Fig 6: Measuring Voltage Between BTS C829-1, Circuit VR210 (BU/BN), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
  - Yes : REPAIR circuit VR210 (BU/BN). Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
  - No : GO to AA6.
AA6 CHECK THE BTS SIGNAL CIRCUIT FOR A SHORT TO THE BTS VREF CIRCUIT
- Ignition OFF.
- For regular cab and Crew Cab vehicles, measure the resistance between BTS C3238-1, circuit VR210 (BU/BN), harness side and BTS C3238-3, circuit LR142 (YE/BU), harness side.
  
  Fig 7: Measuring Resistance Between BTS C3238-1, Circuit VR210 (BU/BN), Harness Side And BTS C3238-3, Circuit LR142 (YE/BU), Harness Side
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the resistance between BTS C829-1, circuit VR210 (BU/BN), harness side and BTS C829-3, circuit LR142 (YE/BU), harness side.
  
  Fig 8: Measuring Resistance Between BTS C829-1, Circuit VR210 (BU/BN), Harness Side And BTS C829-3, Circuit LR142 (YE/BU), Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
  - Yes : GO to AA7.
  - No : REPAIR the circuits. Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
AA7 CHECK THE BTS GROUND CIRCUIT FOR AN OPEN
- For regular cab and Crew Cab vehicles, measure the resistance between BTS C3238-2, circuit GD901 (BK), harness side and ground.
  
  Fig 9: Measuring Resistance Between BTS C3238-2, Circuit GD901 (BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the resistance between BTS C829-2, circuit GD174 (BK/WH), harness side and ground.
  
  Fig 10: Measuring Resistance Between BTS C829-2, Circuit GD174 (BK/WH), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
  - Yes : GO to AA11.
  - No : REPAIR circuit GD901 (BK)/GD174 (BK/WH) or GD174 (BK/WH). Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
AA8 CHECK THE BTS
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.
- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
- Disconnect: Passenger Seat Side Air Bag Module C339.
- Disconnect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
- Connect a fused jumper wire between BTS C3238-1/C829-1, circuit VR210 (BU/BN), harness side and C3238-2/C829-2, circuit GD901 (BK)/GD174 (BK/WH), harness side.
- 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 - OCSM.
- DIAGNOSTIC TIP: When viewing DTCs with the BTS circuits shorted together, a short to ground fault is normally retrieved.
- Did the on-demand DTC change from B0061:13 to B0061:11?
  - Yes : REMOVE the fused jumper wire and INSTALL a new passenger safety belt retractor pretensioner assembly (includes BTS). REFER to SAFETY BELT SYSTEM . GO to AA13.
  - No : REMOVE the fused jumper wire and GO to AA9.
AA9 CHECK THE BTS SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: OCSM C3159.
- For regular cab and Crew Cab vehicles, measure the resistance between BTS C3238-1, circuit VR210 (BU/BN), harness side and OCSM C3159-12, circuit VR210 (BU/BN), harness side.
  
  Fig 11: Measuring Resistance Between BTS C3238-1, Circuit VR210 (BU/BN), Harness Side And OCSM C3159-12, Circuit VR210 (BU/BN), Harness Side
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the resistance between BTS C829-1, circuit VR210 (BU/BN), harness side and OCSM C3159-12, circuit VR210 (BU/BN), harness side.
  
  Fig 12: Measuring Resistance Between BTS C829-1, Circuit VR210 (BU/BN), Harness Side And OCSM C3159-12, Circuit VR210 (BU/BN), Harness Side
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 0.5 ohm?
  - Yes : GO to AA10.
  - No : REPAIR circuit VR210 (BU/BN). Refer to OEM CONNECTOR REPAIR PROCEDURES - F150 for schematic and connector information. GO to AA13.
AA10 CHECK BTS VOLTAGE OUTPUT
- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
- Disconnect: Passenger Seat Side Air Bag Module C339.
- Disconnect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
- Connect a jumper lead between BTS C3238-3 (regular cab and Crew Cab)/C829-3 (SuperCab), circuit LR142 (YE/BU), harness side and C3238/C829 pin 3, circuit LR142 (YE/BU), component side.
- Connect a jumper lead between BTS C3238-2 (regular cab and Crew Cab)/C829-2 (SuperCab), circuit GD901 (BK), harness side and C3238/C829 pin 2, circuit GD901 (BK)/GD174 (BK/WH), component side.
- Repower the SRS. Do not prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
- Ignition ON.
- For regular cab and Crew Cab vehicles, measure the voltage between BTS C3238 pin 1, component side and ground as the tension of the BTS varies.
  
  Fig 13: Measuring Voltage Between BTS C3238 Pin 1, Component Side And Ground
  Courtesy of FORD MOTOR CO.
- For SuperCab vehicles, measure the voltage between BTS C829 pin 1, component side and ground as the tension of the BTS varies.
  
  Fig 14: Measuring Voltage Between BTS C829 Pin 1, Component Side And Ground
  Courtesy of FORD MOTOR CO.
- Does the voltage vary from approximately 0.95 volt with no tension applied to the sensor to approximately 3.8 volts with full tension applied to the sensor?
  - Yes : REMOVE the fused jumper wires and GO to AA11.
  - No : REMOVE the fused jumper wire and INSTALL a new passenger safety belt retractor pretensioner assembly (includes BTS). REFER to SAFETY BELT SYSTEM . GO to AA13.
AA11 CONFIRM THE OCSM FAULT
NOTE: Make sure all OCS components, restraint system sensor electrical connectors and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
- 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.
- 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 CONNECTOR REPAIR PROCEDURES - F150 Connector Repair Procedures for schematic and connector information.
- Connect: OCSM C3159 (if disconnected previously).
- Connect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
- 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 - OCSM.
- Was the original DTC retrieved on-demand during self-test?
  - Yes : INSTALL a new OCSM. REFER to Occupant Classification System Module (OCSM) . GO to AA13.
  - 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 AA12 .
AA12 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: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
  - inspect connector(s) (including any in-line connectors) for 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 CONNECTOR REPAIR PROCEDURES - F150 Connector Repair Procedures for schematic and connector information.
- Connect: BTS C3238 (regular cab and Crew Cab)/C829 (SuperCab).
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM.
- Was DTC B0061:11, B0061:12 or B0061:13 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 B0061:11 or B0061:12, GO to AA2.
    
    For DTC B0061:13, GO to AA8.
  - 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 AA13.
AA13 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 DTCs. PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.