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Home >> Lincoln >> 2009 >> MKX FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 913 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> Pinpoint Tests - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test P: DTC B2909 - Belt Tension Sensor Fault >> Pinpoint Test P: DTC B2909 - Belt Tension Sensor Fault

Pinpoint Test P: DTC B2909 - Belt Tension Sensor Fault

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: To identify between a production OCS system and an OCS system service kit (OCS service kit), inspect the OCS module electrical connector.  

A production OCS system allows the disconnect of the electrical connector from the OCS module.

An OCS system service kit has the OCS module electrical connector glued to the module. It cannot and should not be disconnected or altered.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the pinpoint test.
  1. P1 CHECK FOR CONTINUOUS OR ON-DEMAND SELF TEST DTCs 
    WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.
    WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
    WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
    NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road. 
    NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
    • Enter the following diagnostic mode on the diagnostic tool: OCS Module On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record OCS DTC B2909 Fault PIDs
    • Was on-demand DTC B2909 retrieved from the OCS module? 
    1. YES  : This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test.

      Using the fault PIDs recorded, go to the appropriate pinpoint test step.

      Vehicles with a production OCS system 

      For belt tension sensor with a circuit fault, go to  P2 .

      For belt tension sensor with a short to battery fault, go to  P8 .

      For belt tension sensor with a open fault, go to  P9 .

      For belt tension sensor with a short to ground fault, go to  P10 .

      Vehicles with a service OCS system  Go to  P11 .

    2. NO  : This is an intermittent fault when present as a continuous memory DTC only (DTC not retrieved on demand). The fault condition is not present at this time. Go to  P20 .
  2. P2 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Disconnect: OCS Module C3159
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between OCS module C3159-11, circuit LR142 (YE/BU), harness side and ground; C3159-13, circuit RR142 (GN), harness side and ground; C3159-12, circuit VR210 (BU/BN), harness side and ground.
      Fig 1: Measuring Voltage Between OCS Module C3159-11, LR142 (YE/BU), Harness Side & Ground
      GF0002198Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 
    1. YES  : Go to  P3.
    2. NO  : REPAIR circuit LR142 (YE/BU), circuit VR210 (BU/BN) or circuit RR142 (GN). Go to  P21 .
  3. P3 CHECK BELT TENSION SENSOR CIRCUITS FOR OPEN 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Measure the resistance between OCS C3159-11, circuit LR142 (YE/BU), harness side and the belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side; between OCS C3159-13, circuit RR142 (GN), harness side and the belt tension sensor C3251-2 (2 door) or C829-2 , circuit RR142 (GN), harness side; and between OCS C3159-12, circuit VR210 (BU/BN), harness side and belt tension sensor C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side.
      Fig 2: Measuring Resistance Between OCS C3159-11, LR142 (YE/BU), C3251-1 (2 door) or C829-1 (4 door)
      GF0002199Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    1. YES  : Go to  P4.
    2. NO  : REPAIR circuit LR142 (YE/BU), circuit VR210 (BU/BN) or circuit RR142 (GN).

      Go to  P21.

  4. P4 CHECK CIRCUITS LR142 (YE/BU), VR210 (BU/BN) and RR142 (GN) FOR A SHORT TO GROUND 
    • Measure the resistance between OCS module C3159-11, circuit LR142 (YE/BU), harness side and ground; and between OCS module C3159-12, circuit VR210 (BU/BN) harness side and ground; and between OCS module C3159-13, circuit RR142 (GN), harness side and ground.
      Fig 3: Measuring Resistance Between OCS Module C3159-11, LR142 (YE/BU), Harness Side & Ground
      GF0002200Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,0000 ohms? 
    1. YES  : Go to  P5.
    2. NO  : REPAIR circuit LR142 (YE/BU), circuit VR210 (BU/BN) or circuit RR142 (GN). Go to  P21 .
  5. P5 CHECK CIRCUITS LR142 (YE/BU), VR210 (BU/BN) AND RR142 (GN) FOR A SHORT 
    • Measure the resistance between OCS module:
      Fig 4: Measuring Resistance Between OCS Modules
      GF0002201Courtesy of FORD MOTOR CO.
      • C3159-11, circuit LR142 (YE/BU), harness side and C3159-12, circuit VR210 (BU/BN), harness side.
      • C3159-11, circuit LR142 (YE/BU), harness side and C3159-13, circuit RR142 (GN), harness side.
      • C3159-12, circuit VR210 (BU/BN), harness side and C3159-13, circuit RR142 (GN), harness side.
    • Are the resistances greater than 10,0000 ohms? 
    1. YES  : Go to  P6.
    2. NO  : REPAIR circuit LR142 (YE/BU), circuit RR142 (GN) or circuit VR210 (BU/BN). Go to  P17 .
  6. P6 CHECK OCS MODULE OUTPUT 
    • Connect: OCS Module C3159
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side.
      Fig 5: Measuring Voltage Between Belt Tension Sensor C3251-1 (2 door) or C829-1 (4 door), LR142 (YE/BU)
      GF0002202Courtesy of FORD MOTOR CO.
    • Is the voltage approximately 5 volts? 
    1. YES  : Go to  P7.
    2. NO  : INSTALL a new OCS system service kit. REFER to Occupant Classification Sensor  in this article. Go to  P21 .
  7. P7 CHECK BELT TENSION SENSOR VOLTAGE OUTPUT 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Connect a fused jumper lead between belt tension sensor C3251 pin 1 (2 door) or C829 pin 1 (4 door), circuit LR142 (YE/BU), harness side and pin 1, circuit LR142 (YE/BU), component side.
    • Connect a fused jumper lead between belt tension sensor C3251 pin 2 (2 door) or C829 pin 2 (4 door), circuit RR142 (GN), harness side and pin 2, circuit RR142 (GN), component side.
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C3251 pin 3 (2 door) or C829 pin 3 (4 door), circuit VR210 (BU/BN), component side and ground as you vary the tension of the belt tension sensor.
      Fig 6: Measuring Voltage Between Belt Tension Sensor C3251 Pin 3 (2 door) or C829 pin 3 (4 door), VR210 (BU/BN)
      GF0002203Courtesy 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? 
    1. YES  : Go to  P19.
    2. NO  : INSTALL a new belt tension sensor. REFER to SAFETY BELT SYSTEM article. Go to  P21 .
  8. P8 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and ground; and between belt tension sensor C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side and ground; and between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and ground.
      Fig 7: Measuring Voltage Between Belt Tension Sensor C3251-3 (2 door) or C829-3 (4 door), VR210 (BU/BN)
      GF0002204Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt for C3238-2 and C3238-3 and approximately 5 volts for C3238-1? 
    1. YES  : Go to  P19.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  9. P9 CHECK THE BELT TENSION SENSOR CIRCUITS FOR AN OPEN 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Disconnect: OCS Module C3159
    • Measure the resistance between OCS C3159-11, circuit LR142 (YE/BU), harness side and the belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side; between OCS C3159-13, circuit RR142 (GN), harness side and the belt tension sensor C3251-2 (2 door) or C829-2 , circuit RR142 (GN), harness side; and between OCS C3159-12, circuit VR210 (BU/BN), harness side and belt tension sensor C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side.
      Fig 8: Measuring Resistance Between OCS C3159-11, LR142 (YE/BU), C3251-1 (2 door) or C829-1 (4 door)
      GF0002199Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  P17.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  10. P10 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Measure the resistance between belt tension sensor C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and ground, and between belt tension sensor C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side and ground, and between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and ground.
      Fig 9: Measuring Resistance Between Belt Tension Sensor C3251-3 (2 door) or C829-3 (4 door), VR210 (BU/BN)
      GF0002206Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms for C3251-1/C829-1 and C3251-3/C829-3 and less than 5 ohms for C3251-2/C829-2? 
    1. YES  : Go to  P19.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  11. P11 CHECK THE BELT TENSION SENSOR CIRCUITS 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Carry out a thorough visual inspection of the OCS system wiring, terminals and connectors, the belt tension sensor wiring, terminals and connectors and the related seat wiring harness and body wiring harness terminals and connectors.
    • Were any problems noted? 
    1. YES  : REPAIR the seat connectors and wiring as needed. Go to  P21 .
    2. NO  : Using the fault PIDs recorded in Step P1, go to the appropriate pinpoint test step.

      For belt tension sensor with a circuit fault, go to  P12 .

      For belt tension sensor with a short to battery fault, go to  P15 .

      For belt tension sensor with a short to ground fault, go to  P16 .

  12. P12 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE 
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C829-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and ground; and between belt tension sensor C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side and ground; and between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and ground.
      Fig 10: Measuring Voltage Between Belt Tension Sensor C829-3 (2 door) or C829-3 (4 door), VR210 (BU/BN)
      GF0002204Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt for C3238-2/C829-2 and C3238-3/C829-3 and approximately 5 volts for C3238-1/C829-1? 
    1. YES  : Go to  P13.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  13. P13 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Measure the resistance between belt tension sensor C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and ground, and between belt tension sensor C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side and ground, and between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and ground.
      Fig 11: Measuring Resistance Between Belt Tension Sensor C3251-3 (2 door) or C829-3 (4 door), VR210 (BU/BN)
      GF0002206Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms for C3238-1/C829-1 and C3238-3/C829-3 and less than 5 ohms for C3238-2/C829-2? 
    1. YES  : Go to  P14.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  14. P14 CHECK CIRCUITS LR142 (YE/BU), VR210 (BU/BN) AND RR142 (GN) FOR A SHORT 
    • Measure the resistance between belt tension sensor:
      Fig 12: Measuring Resistance Between Belt Tension Sensors
      GF0002207Courtesy of FORD MOTOR CO.
      • C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side.
      • C3251-1 (2 door ) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side.
      • C3251-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  P17.
    2. NO  : REPAIR circuit LR142 (YE/BU), circuit RR142 (GN) or circuit VR210 (BU/BN). Go to  P21 .
  15. P15 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE 
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C829-3 (2 door) or C829-3 (4 door), circuit VR210 (BU/BN), harness side and ground; and between belt tension sensor C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side and ground; and between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and ground.
      Fig 13: Measuring Voltage Between Belt Tension Sensor C829-3 (2 door) or C829-3 (4 door), VR210 (BU/BN)
      GF0002204Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt for C3238-2/C829-2 and C3238-3/C829-3 and approximately 5 volts for C3238-1/C829-1? 
    1. YES  : Go to  P17.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  16. P16 CHECK THE BELT TENSION SENSOR CIRCUITS FOR A SHORT TO GROUND 
    • Disconnect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Measure the resistance between belt tension sensor C3238-3, circuit VR210 (BU/BN), harness side and ground, and between belt tension sensor C3238-2, circuit RR142 (GN), harness side and ground, and between belt tension sensor C3238-1, circuit LR142 (YE/BU), harness side and ground.
      Fig 14: Measuring Resistance Between Belt Tension Sensor C3238-3, VR210 (BU/BN), Harness Side & Ground
      GF0002206Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms for C3238-1 and C3238-3 and less than 5 ohms for C3238-2? 
    1. YES  : Go to  P17.
    2. NO  : REPAIR circuit VR210 (BU/BN), circuit RR142 (GN) or circuit LR142 (YE/BU). Go to  P21 .
  17. P17 CHECK OCS MODULE OUTPUT 
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C3251-1 (2 door) or C829-1 (4 door), circuit LR142 (YE/BU), harness side and C3251-2 (2 door) or C829-2 (4 door), circuit RR142 (GN), harness side.
      Fig 15: Measuring Voltage Between Belt Tension Sensor C3251-1 (2 door) or C829-1 (4 door), LR142 (YE/BU)
      GF0002202Courtesy of FORD MOTOR CO.
    • Is the voltage approximately 5 volts? 
    1. YES  : Go to  P18.
    2. NO  : INSTALL a new OCS system service kit. REFER to Occupant Classification Sensor  in this article. Go to  P21 .
  18. P18 CHECK BELT TENSION SENSOR VOLTAGE OUTPUT 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Connect a fused jumper lead between belt tension sensor C3251 pin 1 (2 door) or C829 pin 1 (4 door), circuit LR142 (YE/BU), harness side and pin 1, circuit LR142 (YE/BU), component side.
    • Connect a fused jumper lead between belt tension sensor C3251 pin 2 (2 door) or C829 pin 2 (4 door), circuit RR142 (GN), harness side and pin 2, circuit RR142 (GN), component side.
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Key in ON position.
    • Measure the voltage between belt tension sensor C3251 pin 3 (2 door) or C829 pin 3 (4 door), circuit VR210 (BU/BN), component side and ground as you vary the tension of the belt tension sensor.
      Fig 16: Measuring Voltage Between Belt Tension Sensor C3251 Pin 3 (2 door) or C829 Pin 3 (4 door), VR210 (BU/BN)
      GF0002203Courtesy 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? 
    1. YES  : Go to  P19.
    2. NO  : INSTALL a new belt tension sensor. REFER to SAFETY BELT SYSTEM article. Go to  P21 .
  19. P19 CONFIRM THE BELT TENSION SENSOR FAULT 
    NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connector are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Connect: OCS Module C3159 (if disconnected previously)
    • Connect: Belt Tension Sensor C3251 (2 Door) C829 (4 Door)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Enter the following diagnostic mode on the diagnostic tool: OCS On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record OCS DTC B2909 Fault PIDs
    • Was on-demand DTC B2909 retrieved from the OCS module? 
    1. YES  : INSTALL a new OCS system service kit. REFER to Occupant Classification Sensor  in this article. Go to  P21 .
    2. 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. REPAIR any intermittent concerns found. Go to  P21 .
  20. P20 CHECK FOR AN INTERMITTENT FAULT 
    • Key in OFF position.
    • Enter the following diagnostic mode on the diagnostic tool: OCS On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record OCS DTC B2909 Fault PIDs
    • Was on-demand DTC B2909 retrieved from the OCS module? 
    1. YES  : This is a hard fault. 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.

      Using the fault PIDs recorded, go to the appropriate pinpoint test step.

      Vehicles with a production OCS system 

      For belt tension sensor with a circuit fault, go to  P2 .

      For belt tension sensor with a short to battery fault, go to  P8 .

      For belt tension sensor with a open fault, go to  P9 .

      For belt tension sensor with a short to ground fault, go to  P10 .

      Vehicles with a service OCS system  Go to  P11 .

    2. 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. REPAIR any intermittent concerns found. Go to  P21 .
  21. P21 CHECK FOR ADDITIONAL DTCs 
    • Refer to the continuous memory DTCs recorded during Step P1.
    • Were any continuous memory DTCs retrieved during Step P1? 
    1. YES  : Do not clear any DTCs until all DTCs have been resolved. Go to the Restraints Control Module (RCM) Diagnostic Trouble Code (DTC) Table in this article for pinpoint test direction.
    2. NO  : RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. REFER to Supplemental Restraint System (SRS) Deactivation and Reactivation  in this article. REPOWER the system. REFER to Supplemental Restraint System (SRS) Depowering and Repowering  in this article. PROVE OUT the system. CLEAR all RCM and OCS module DTCs.
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