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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> Restraints >> Seat Belts >> Occupant Restraint Controller (Orc) - DTCS B1BD3-00 To U1601-00 >> DTC Troubleshooting >> B21DD-17-System Voltage-Circuit Voltage Above Threshold >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read ORC DTCs and record on the repair order.
    2. Record the Environmental Data.
    3. With the scan tool, erase DTCs.
    4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    5. With the scan tool, read ORC DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

      • Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Refer to RESTRAINTS SYSTEM INTERMITTENT TEST .
      • Probing of the circuit cavities at the ORC Module body harness connectors or vehicle connectors is only to be done with a approved test lead from the test lead 10159-6 or the use of Breakout Box 8443-55 to prevent vehicle wiring harness connector damage during diagnostic procedures. 
  2. DETERMINE ACTIVE OR STORED DTC 
    1. Turn the ignition on.
    2. With the scan tool, read all active ORC DTCs.

      Is the DTC active or stored?

      ORC - ACTIVE DTC 

      • Go To  3

      ORC - STORED DTC 

  3. INSPECT THE POWER DISTRIBUTION CENTER (PDC) ORC RUN/START FUSE 
    1. Remove the ORC battery fuse from the Power Distribution Center (PDC) and inspect the fuse.
      NOTE:

      Check connectors - Clean and repair as necessary.

      Is the ORC fuse open?

      Yes 

      • Replace the Power Distribution Center (PDC) Fuse in accordance with the Service Information, then Go To  7
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK FOR BATTERY VOLTAGE AT THE INPUT SIDE OF THE POWER DISTRIBUTION CENTER (PDC) FUSE 
    1. Remove the Power Distribution Center (PDC) fuse and check for battery voltage on the input side of the fuse block and ground.

      Is the voltage above 16.0 ± 0.5 of a volt on the Junction Block fuse input circuit?

      Yes 

      • Go To  5

      No 

      • Replace the Power Distribution Center (PDC) and reinstall fuse in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  5. CHECK THE POWER DISTRIBUTION CENTER (PDC) FUSED CIRCUIT FOR VOLTAGE TO THE ORC CONNECTOR 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the ORC harness connectors.
      NOTE:

      Check connectors - Clean and repair as necessary.

    2. Reinstall the Power Distribution Center (PDC) fuse.
    3. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    4. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    5. Connect the appropriate test lead to the DVOM.
    6. Measure the voltage of the Fused circuit at the appropriate terminal of the ORC module body harness connector C2 and ground.

      Is the voltage above 16.0 ± 0.5 of a volt?

      Yes 

      • Go To  7

      No 

      • Go To  6
  6. CHECK FOR AN OPEN FUSED RUN CIRCUIT 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the Fused circuit from the Power Distribution Center (PDC).
    2. Measure the resistance between the Fused output run circuit at the Power Distribution Center (PDC) terminal and the Fused circuit of the ORC module body harness connector.

      Is the resistance 10 Ohms or less?

      Yes 

      No 

      • Repair the Fused circuit for an open, then Go To  7

        Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.

      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  7. INSPECT THE POWER DISTRIBUTION CENTER (PDC) ORC IGNITION RUN/START FUSE 
    1. Remove the ORC Ignition Run/Start fuse from the Power Distribution Center (PDC) and inspect the fuse.
      NOTE:

      Check connectors - Clean and repair as necessary.

      Is the Run/Start Rear Power Distribution Center ORC fuse open?

      Yes 

      No 

      • Go To  8
  8. CHECK FOR BATTERY VOLTAGE AT THE INPUT SIDE OF THE POWER DISTRIBUTION CENTER (PDC) RUN/START RELAY FUSE 
    1. Remove Run/Start Relay fuse and turn the ignition on. Check for battery voltage on the input side of the fuse block and ground.
    2. Check for battery voltage on the input side of the fuse block and ground.

      Is the voltage above 16.0 ± 0.5 of a volt on the (F201) Fused Ignition Switch Output (Run/Start) circuit?

      Yes 

      • Go To  9

      No 

      • Replace the Power Distribution Center and reinstall fuse in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  9. CHECK (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT FOR VOLTAGE TO THE ORC CONNECTOR 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the ORC harness connectors.
      NOTE:

      Check connectors - Clean and repair as necessary.

    2. Reinstall Power Distribution Center (PDC) Run/Start fuse.
    3. If the vehicle is equipped with the keyless ignition, follow this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    4. If the vehicle is equipped with the standard key ignition, follow this ignition on warning.
      WARNING:

      Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    5. Connect the appropriate test lead to the DVOM.
    6. Measure the voltage of the (F201) Fused Ignition Switch Output (Run/Start) Circuit at the appropriate terminals of the ORC module body harness connector and ground.

      Is the voltage above 16.0 ± 0.5 of a volt?

      Yes 

      WARNING:

      If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.

      No 

      • Go To  10
  10. CHECK FOR AN OPEN (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT 
    1. Disconnect the (F945) Fused Ignition Switch Output (Run/Start) circuit from the Power Distribution Center (PDC).
    2. Connect the appropriate test lead to the DVOM.
    3. Measure the resistance between the (F201) Fused Ignition Switch Output (Run/Start) Circuit output circuit at terminal of the Power Distribution Center and the (F9201) Fused Ignition Switch Output (Run/Start) Circuit at the terminal C2 - 102 of the ORC module body harness connector.

      Is the resistance 10 Ohms or less?

      Yes 

      • Replace the Power Distribution Center (PDC) and reinstall the Run/Start Relay fuse in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Repair the (F201) Fused Ignition Switch Output (Run/Start) Circuit for an open

        Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.

      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
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