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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1355 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test C: LFC 38 or 39 DTC B1085 - Restraint System - Seatbelt Load Limiter Status >> Pinpoint Test C: DTC B1085 - Restraint System - SEATBELT Load Limiter Status

Pinpoint Test C: DTC B1085 - Restraint System - SEATBELT Load Limiter Status

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. 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 safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.
NOTE: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
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: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
  1. C1 CHECK FOR CONTINUOUS AND ON-DEMAND DTCs 
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record All B1085 Fault PIDs
      • Refer to PID list in Normal Operation to view B1085 fault PIDs.
    • Do any RCM on-demand DTC B1085 fault PIDs indicate a fault? 
    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.

      For 1085_28_OD (Seatbelt Load Limiter Driver Circuit Resist Low on Squib), go to  C2.

      For 1085_29_OD (Seatbelt Load Limiter Driver Open), go to  C2.

      For 1085_31_OD (Seatbelt Load Limiter Driver Short to Ground), go to  C8.

      For 1085_30_OD (Seatbelt Load Limiter Driver Short to Battery), go to  C10.

    2. For 1085_24_OD (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib), go to  C11.

      For 1085_25_OD (Seatbelt Load Limiter Front Passenger Open), go to  C11.

      For 1085_27_OD (Seatbelt Load Limiter Front Passenger Short to Ground), go to  C17.

      For 1085_26_OD (Seatbelt Load Limiter Front Passenger Short to Battery), go to  C19.

    3. 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.

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

      For 1085_28_CM (Seatbelt Load Limiter Driver Circuit Resist Low on Squib), 1085_29_CM (Seatbelt Load Limiter Driver Open), 1085_24_CM (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib) or 1085_25_CM (Seatbelt Load Limiter Front Passenger Open), go to  C22.

      For 1085_31_CM (Seatbelt Load Limiter Driver Short to Ground) or 1085_27_CM (Seatbelt Load Limiter Front Passenger Short to Ground), go to  C24.

      For 1085_30_CM (Seatbelt Load Limiter Driver Short to Battery) or 1085_26_CM (Seatbelt Load Limiter Front Passenger Short to Battery), go to  C25.

  2. C2 CHECK THE DRIVER LOAD LIMITING RETRACTOR RESISTANCE PID (D_LOAD)  
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/PID
    • Enter the following diagnostic mode on the diagnostic tool: D_LOAD (Seatbelt Load Limiter Resistance, Driver Side) Resistance PID
    • Does the resistance PID value read between 1.50 and 3.04 ohms 
    1. YES  : Go to  C21.
    2. NO  : Go to  C3.
  3. C3 CHECK THE DRIVER LOAD LIMITING RETRACTOR RESISTANCE PID (D_LOAD) WHILE CARRYING OUT A HARNESS TEST 
    • Continue monitoring the D_LOAD (Seatbelt Load Limiter Resistance, Driver Side) resistance PID while carrying out a harness test of the driver load limiting retractor circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness.
    • Does the resistance PID value read between 1.50 and 3.04 ohms while carrying out a harness test? 
    1. YES  : DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : If the driver load limiting retractor resistance PID is less than 1.50 ohms, go to  C4.

      If the driver load limiting retractor resistance PID is greater than 3.04 ohms, go to  C6.

  4. C4 CHECK THE DRIVER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_28_OD AND 1085_29_OD) FOR LOW RESISTANCE AND OPEN 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Load Limiting Retractor C354
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_28_OD (Seatbelt Load Limiter Driver Circuit Resist Low on Squib)
      • 1085_29_OD (Seatbelt Load Limiter Driver Open)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the driver load limiting retractor disconnected, an open circuit fault would normally be retrieved.
    • Did the driver load limiting retractor on-demand fault PIDs change from indicating a low resistance to an open circuit fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C5.
  5. C5 CHECK FOR A SHORT BETWEEN DRIVER LOAD LIMITING RETRACTOR CIRCUITS CR146 (GY/VT) AND RR146 (BU/BN)  
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between driver load limiting retractor C354-1, circuit CR146 (GY/VT), harness side and C354-2, circuit RR146 (BU/BN), harness side.
      • Fig 1: Checking Low Resistance
      G04675893Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuits CR146 (GY/VT) and RR146 (BU/BN). Go to  C26.
  6. C6 CHECK THE DRIVER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_29_OD AND 1085_28_OD) FOR AN OPEN AND LOW RESISTANCE 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Load Limiting Retractor C354
    • Connect a fused jumper wire between driver load limiting retractor C354-1, circuit CR146 (GY/VT), harness side and C354-2, circuit RR146 (BU/BN), harness side.
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_28_OD (Seatbelt Load Limiter Driver Circuit Resist Low on Squib)
      • 1085_29_OD (Seatbelt Load Limiter Driver Open)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the driver load limiting retractor circuits shorted together, a low resistance fault would normally be retrieved.
    • Did the driver load limiting retractor on-demand fault PIDs change from indicating an open circuit to a low resistance fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C7.
  7. C7 CHECK CIRCUITS CR146 (GY/VT) AND RR146 (BU/BN) FOR AN OPEN 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Remove the fused jumper wire from the driver load limiting retractor C354.
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-35, circuit CR146 (GY/VT), harness side and driver load limiting retractor C354-1, circuit CR146 (GY/VT), harness side; and between RCM C310b-36, circuit RR146 (BU/BN), harness side and driver load limiting retractor C354-2, circuit RR146 (BU/BN), harness side.
      • Fig 2: Measuring Resistance
      GF0045550Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN). Go to  C26.
  8. C8 CHECK THE DRIVER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_29_OD AND 1085_31_OD) FOR AN OPEN AND SHORT TO GROUND 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Load Limiting Retractor C354
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_29_OD (Seatbelt Load Limiter Driver Open)
      • 1085_31_OD (Seatbelt Load Limiter Driver Short to Ground)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the driver load limiting retractor disconnected, an open circuit fault would normally be retrieved.
    • Did the driver load limiting retractor on-demand fault PIDs change from indicating a short to ground to an open circuit fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C9.
  9. C9 CHECK CIRCUITS CR146 (GY/VT) AND RR146 (BU/BN) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between driver load limiting retractor C354-1, circuit CR146 (GY/VT), harness side and ground; and between driver load limiting retractor C354-2, circuit RR146 (BU/BN), and ground.
      • Fig 3: Measuring Resistance
      GF0013417Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN). Go to  C26.
  10. C10 CHECK CIRCUITS CR146 (GY/VT) AND RR146 (BU/BN) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Load Limiting Retractor C354
    • 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 .
    • Key in ON position.
    • Measure the voltage between driver load limiting retractor C354-1, circuit CR146 (GY/VT), harness side and ground; and between driver load limiting retractor C354-2, circuit RR146 (BU/BN), harness side and ground.
      • Fig 4: Checking Circuit For Voltage
      G03881011Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN). Go to  C26.
  11. C11 CHECK THE PASSENGER LOAD LIMITING RETRACTOR RESISTANCE PID (P_LOAD) 
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/PID
    • Enter the following diagnostic mode on the diagnostic tool: P_LOAD (Seatbelt Load Limiter Resistance, Passenger Side) Resistance PID
    • Does the resistance PID value read between 1.50 and 3.04 ohms? 
    1. YES  : Go to  C21.
    2. NO  : Go to  C12.
  12. C12 CHECK THE PASSENGER LOAD LIMITING RETRACTOR RESISTANCE PID (P_LOAD) WHILE CARRYING OUT A HARNESS TEST 
    • Continue monitoring the P_LOAD (Seatbelt Load Limiter Resistance, Passenger Side) resistance PID while carrying out a harness test of the passenger load limiting retractor circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness.
    • Does the resistance PID value read between 1.50 and 3.04 ohms while carrying out the harness test? 
    1. YES  : DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : If the passenger load limiting retractor resistance PID is less than 1.50 ohms, go to  C13.

      If the passenger load limiting retractor resistance PID is greater than 3.04 ohms, go to  C15.

  13. C13 CHECK THE PASSENGER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_24_OD AND 1085_25_OD) FOR LOW RESISTANCE AND OPEN  
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Load Limiting Retractor C389
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_24_OD (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib)
      • 1085_25_OD (Seatbelt Load Limiter Front Passenger Open)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the passenger load limiting retractor disconnected, an open circuit fault would normally be retrieved.
    • Did the passenger load limiting retractor on-demand fault PIDs change from indicating a low resistance to an open circuit fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C14.
  14. C14 CHECK FOR A SHORT BETWEEN PASSENGER LOAD LIMITING RETRACTOR CIRCUITS RR147 (YE/VT) AND CR147 (GN/OG) 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between passenger load limiting retractor C389-1, circuit CR147 (GN/OG), harness side and C389-2, circuit RR147 (YE/VT), harness side.
      • Fig 5: Checking Low Resistance
      G04675893Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuits CR147 (GN/OG) and RR147 (YE/VT). Go to  C26.
  15. C15 CHECK THE PASSENGER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_25_OD AND 1085_24_OD) FOR LOW RESISTANCE AND OPEN  
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Load Limiting Retractor C389
    • Connect a fused jumper wire between passenger load limiting retractor C389-1, circuit CR147 (GN/OG), harness side and C389-2, circuit RR147 (YE/VT), harness side.
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_24_OD (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib)
      • 1085_25_OD (Seatbelt Load Limiter Front Passenger Open)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the passenger load limiting retractor circuits shorted together, a low resistance fault would normally be retrieved.
    • Did the passenger load limiting retractor on-demand fault PIDs change from indicating an open circuit to a low resistance fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C16.
  16. C16 CHECK CIRCUITS CR147 (GN/OG) AND RR147 (YE/VT) FOR AN OPEN 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Remove the fused jumper wire from the passenger load limiting retractor C389.
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-37, circuit RR147 (YE/VT), harness side and passenger load limiting retractor C389-2, circuit RR147 (YE/VT), harness side; and between RCM C310b-36, circuit CR147 (GN/OG), harness side and passenger load limiting retractor C389-1, circuit CR147 (GN/OG), harness side.
      • Fig 6: Measuring Resistance
      GF0045551Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit RR147 (YE/VT) or CR147 (GN/OG). Go to  C26.
  17. C17 CHECK THE PASSENGER LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs (1085_27_OD AND 1085_25_OD) FOR SHORT TO GROUND AND OPEN 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Load Limiting Retractor C389
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record The Following Fault PIDs
      • 1085_25_OD (Seatbelt Load Limiter Front Passenger Open)
      • 1085_27_OD (Seatbelt Load Limiter Front Passenger Short to Ground)
    • DIAGNOSTIC TIP:  When viewing DTC B1085 on-demand fault PIDs with the passenger load limiting retractor disconnected, an open circuit fault would normally be retrieved.
    • Did the passenger load limiting retractor on-demand fault PIDs change from indicating a short to ground to an open circuit fault? 
    1. YES  : Go to  C20.
    2. NO  : Go to  C18.
  18. C18 CHECK CIRCUITS CR147 (GN/OG) AND RR147 (YE/VT) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between passenger load limiting retractor C389-1, circuit CR147 (GN/OG), harness side and ground; and between passenger load limiting retractor C389-2, circuit RR147 (YE/VT), harness side and ground.
      • Fig 7: Measuring Resistance
      GF0013417Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit CR147 (GN/OG) or RR147 (YE/VT). Go to  C26.
  19. C19 CHECK CIRCUITS RR147 (YE/VT) AND CR147 (GN/OG) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Load Limiting Retractor C389
    • 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 .
    • Key in ON position.
    • Measure the voltage between passenger load limiting retractor C389-2, circuit RR147 (YE/VT), harness side and ground; and between passenger load limiting retractor C389-1, circuit CR147 (GN/OG), harness side and ground.
      • Fig 8: Checking Circuit For Voltage
      G03881011Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 
    1. YES  : Go to  C21.
    2. NO  : REPAIR circuit RR147 (YE/VT) or CR147 (GN/OG). Go to  C26.
  20. C20 CONFIRM THE LOAD LIMITING RETRACTOR FAULT 
    NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM electrical connectors are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Connect: Affected Load Limiting Retractor C354 (Driver) C389 (Passenger)
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record All B1085 Fault PIDs
      • Refer to PID list in Normal Operation to view B1085 fault PIDs.
    • Does the original RCM on-demand DTC B1085 fault PID indicate a fault? 
    1. YES  : INSTALL a new driver or passenger load limiting retractor. REFER to SAFETY BELT SYSTEM article. Go to  C26.
    2. NO  : In the process of diagnosing the fault, the fault condition has become intermittent. Using the fault PIDs recorded, go to the appropriate pinpoint test step and CHECK for causes of the intermittent fault in the areas previously worked in, particularly the pins and terminals of any electrical connector that were disconnected.

      For 1085_28_CM (Seatbelt Load Limiter Driver Circuit Resist Low on Squib), 1085_29_CM (Seatbelt Load Limiter Driver Open), 1085_24_CM (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib) or 1085_25_CM (Seatbelt Load Limiter Front Passenger Open), go to  C22.

      For 1085_31_CM (Seatbelt Load Limiter Driver Short to Ground) or 1085_27_CM (Seatbelt Load Limiter Front Passenger Short to Ground), go to  C24.

      For 1085_30_CM (Seatbelt Load Limiter Driver Short to Battery) or 1085_26_CM (Seatbelt Load Limiter Front Passenger Short to Battery), go to  C25.

  21. C21 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM electrical connectors are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Connect: All Restraint System Components (if previously disconnected)
    • Connect: RCM C310a and C310b (if previously disconnected)
    • Repower the SRS. Do not  prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/View and Record All B1085 Fault PIDs
      • Refer to PID list in Normal Operation to view B1085 fault PIDs.
    • Does the original RCM on-demand DTC B1085 fault PID indicate a fault? 
    1. YES  : INSTALL a new RCM and CARRY OUT programmable module installation (PMI). REFER to Restraints Control Module (RCM) . Go to  C26.
    2. NO  : In the process of diagnosing the fault, the fault condition has become intermittent. CHECK for causes of the intermittent fault in the areas previously worked in, particularly the pins and terminals of any electrical connector that were disconnected.

      For 1085_28_CM (Seatbelt Load Limiter Driver Circuit Resist Low on Squib), 1085_29_CM (Seatbelt Load Limiter Driver Open), 1085_24_CM (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib) or 1085_25_CM (Seatbelt Load Limiter Front Passenger Open), go to  C22.

      For 1085_31_CM (Seatbelt Load Limiter Driver Short to Ground) or 1085_27_CM (Seatbelt Load Limiter Front Passenger Short to Ground), go to  C24.

      For 1085_30_CM (Seatbelt Load Limiter Driver Short to Battery) or 1085_26_CM (Seatbelt Load Limiter Front Passenger Short to Battery), go to  C25.

  22. C22 CHECK LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT  
    • If the fault PID or was reported for the driver load limiting retractor, monitor the following on the scan tool.
      • D_LOAD (Seatbelt Load Limiter Resistance, Driver Side) resistance PID.
      • 1085_28_OD (Seatbelt Load Limiter Driver Circuit Resist Low on Squib) and 1085_29_OD (Seatbelt Load Limiter Driver Open) on-demand fault PIDs.
    • If the fault PID was reported for the passenger load limiting retractor, monitor the following on the scan tool.
      • P_LOAD (Seatbelt Load Limiter Resistance, Passenger Side) resistance PID.
      • 1085_24_OD (Seatbelt Load Limiter Front Passenger Circuit Resist Low on Squib) and 1085_25_OD (Seatbelt Load Limiter Front Passenger Open) on-demand fault PID.
      • NOTE: A resistance PID that reads between 1.36 and 1.50 ohms or between 3.04 and 3.72 ohms may or may not set an on-demand DTC, yet indicates a strong potential of an intermittent fault condition. Make sure to thoroughly check wire harness(es), connectors and terminals as they are the likely source of the fault condition.
    • Attempt to recreate the fault by wiggling the connectors (including any inline connectors) and flexing the wire harness.
    • Does any RCM on-demand B1085 fault PID indicate a fault is present or is the resistance PID less than 1.50 ohms or greater than 3.04 ohms? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : Go to  C23.
  23. C23 CHECK THE HARNESS AND CONNECTORS 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect the affected load limiting retractor C354 (driver) or C389 (passenger):
      • inspect connector(s) (including any inline 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.
    • Were any concerns found? 
    1. YES  : REPAIR as necessary. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : The fault is not present and cannot be recreated at this time. Go to  C26.
  24. C24 CHECK LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs FOR AN INTERMITTENT SHORT TO GROUND 
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM DataLogger/PID
    • If the fault PID was reported for the driver load limiting retractor, monitor the 1085_31_OD (Seatbelt Load Limiter Driver Short to Ground) on-demand fault PID on the scan tool.
    • If the fault PID was reported for the passenger load limiting retractor, monitor the 1085_27_OD (Seatbelt Load Limiter Front Passenger Short to Ground) on-demand fault PID on the scan tool.
    • DIAGNOSTIC TIP:  When monitoring fault PIDs with the scan tool, it may take up to 2 seconds for the scan tool display to update.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness.
    • Does any RCM on-demand B1085 fault PID indicate a fault is present? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : The fault is not present and cannot be recreated at this time. Go to  C26.
  25. C25 CHECK LOAD LIMITING RETRACTOR CIRCUIT FAULT PIDs FOR AN INTERMITTENT SHORT TO BATTERY  
    • If the fault PID was reported for the driver load limiting retractor, monitor the 1085_30_OD (Seatbelt Load Limiter Driver Short to Battery) on-demand fault PID.
    • If the fault PID was reported for the passenger load limiting retractor, monitor the 1085_26_OD (Seatbelt Load Limiter Front Passenger Short to Battery) on-demand fault PID.
    • Key in ON position.
    • DIAGNOSTIC TIP:  When monitoring fault PIDs with the scan tool, it may take up to 2 seconds for the scan tool display to update.
    • Attempt to recreate the fault by wiggling the connectors (including any inline connectors) and flexing the wire harness.
    • Does any RCM on-demand B1085 fault PID indicate a fault is present? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to appropriate SYSTEM WIRING DIAGRAMS article, Connector Repair Procedures for schematic and connector information. Go to  C26.
    2. NO  : The fault is not present and cannot be recreated at this time. Go to  C26.
  26. C26 CHECK FOR ADDITIONAL SRS DTCs 
    • Key in OFF position.
      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).
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: RCM Self Test/Retrieve and Record On-Demand and Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: Clear all RCM and OCSM Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: Self Test/RCM
    • Are any RCM DTCs retrieved indicating a fault? 
    1. YES  : Do not clear any DTCs until all DTCs have been resolved. Go to the SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DTC TABLE  for pinpoint test direction.
    2. NO  : PROVE OUT the SRS. REPAIR is complete. RETURN the vehicle to the customer.
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