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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> Restraints >> Seat Belts >> Air Bag Restraint System - Electrical Diagnostics >> DTC Troubleshooting >> B1B09-Passenger Airbag Squib 1 Circuit High >> Diagnostic Test

Diagnostic Test

  1. DETERMINE ACTIVE OR STORED DTC 
    NOTE: Ensure the battery is fully charged.
    NOTE: The scan tool, SRS Airbag Load Tool MRL 8443, and DVOM are required to perform the following test.
    1. Select Active or Stored DTC.

      Is the DTC active or stored?

      ORC - ACTIVE DTC 

      • Go to step  2

      ORC - STORED DTC 

  2. CHECK FOR SHORTED SQUIB CIRCUITS IN PASSENGER AIRBAG 
    Fig 1: Checking For Shorted Squib Circuits In Passenger Airbag
    GC0096172Courtesy of CHRYSLER LLC
    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.
    1. Disconnect the Passenger Airbag Squib connector.
      WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.
      NOTE: Check connectors - Clean and repair as necessary.
    2. Connect the 8443 Load Tool to the Passenger Airbag Squib connector.
      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.
    3. With the scan tool, read the active ORC DTCs.

      Does the scan tool display: B1B09 PASSENGER AIRBAG SQUIB 1 CIRCUIT HIGH?

      Yes 

      • Go to step  3

      No 

  3. CHECK (R42) PASSENGER SQUIB 1 LINE 2 CIRCUIT AND (R44) PASSENGER SQUIB 1 LINE 1 CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 2: Checking Passenger Squib 1 Line 2 Circuit & Passenger Squib 1 Line 1 Circuit For A Short To Voltage
    GC0096174Courtesy of CHRYSLER LLC
    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.
    1. Disconnect the 8443 Load Tool from the Passenger Airbag Squib connector.
    2. Disconnect the ORC connectors.
      NOTE: Check connectors - Clean and repair as necessary.
    3. Connect the 8443 Load Tool ORC Adaptor to the ORC C2 connector.
      WARNING: Turn the ignition on, then reconnect the battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
      Fig 3: Checking Passenger Squib 1 Line 2 Circuit & Passenger Squib 1 Line 1 Circuit For A Short To Ground
      GC0096173Courtesy of CHRYSLER LLC
    4. Measure the voltage of the (R42) Passenger Squib 1 Line 2 circuit between the Passenger Airbag Squib connector and ground.
    5. Measure the voltage of the (R44) Passenger Squib 1 Line 1 circuit between the Passenger Airbag Squib connector and ground.

      Is there any voltage present for either measurement?

      Yes 

      No 

        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.
        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.
      • Replace the ORC in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
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