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Home >> Jeep >> 2023 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Occupant Restraint Controller (Orc) - DTCS B0001-11 To B0011-11 >> DTC Troubleshooting >> B0004-12-Front Driver KNEEBAG Squib Control-Circuit Short To Battery >> Diagnostic Test

Diagnostic Test

THIS DTC IS A PLACE HOLDER FOR FUTURE BUILDS AND MAY NOT SET BASED ON THE SALES CODE OF THE VEHICLE. 

  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    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 

  2. CHECK THE RELATED CONNECTORS AT THE CONTROLLER AND THE SUSPECT DEVICE 
    WARNING:

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

    WARNING:

    Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the Squib connector and the related Occupant Restraint Controller (ORC) connector.
    2. Re-seat both connectors insuring CPA latching is secure. Turn the ignition on and re-test for the DTC.

      Did the DTC return?

      No 

      Yes 

      • Go To  3
  3. CHECK FOR A FAULTY SQUIB 
    WARNING:

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

    WARNING:

    Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the affected Squib harness connector and insure connector and terminals are not damaged.
    2. Using the Airbag Kit 2022400100 and 2022900080, connect tool to the Squib connector.
      multimedia:A supplement to the article is available.
      NOTE:

      Most squib tests will require the 2022401100 2.0 ohm resistor for testing. The 2022403100 3.0 ohm resistor is for simulating the SCCM and Driver squibs together on the body side of the column harness.

    3. Turn the ignition on.
    4. Clear DTC and note if it returns.
    5. With the scan tool, erase DTCs.
    6. Cycle the ignition off and on.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      No 

      Yes 

      • Go To  4
  4. CHECK THE SQUIB CIRCUITS FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the harness connector at the component of the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
    3. Turn the ignition on.
    4. Using a DVOM, measure the voltage of the circuit being tested at the component harness connector.

    Is there any voltage present on either circuit?

    Yes 

    No 

    • Go To  5
  5. CHECK RELATED HARNESS CONNECTIONS 
    WARNING:

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

    WARNING:

    Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect all ORC harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Presence of foreign conductive materials on connector pins and terminals.
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    5. Reconnect all ORC harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. 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.

    9. 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.

    10. With the scan tool, erase DTCs.
    11. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    12. With the scan tool, read ORC DTCs.

      Did the DTC return?

      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 

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