Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THAT DTC B212D-IGNITION RUN ONLY INPUT CIRCUIT OPEN IS ACTIVE
NOTE: Make sure the battery is fully charged.
1. Turn the ignition on.
2. With the scan tool, read Occupant Restraint Controller (ORC) DTCs.
  Does the scan tool display active: B212D-IGNITION RUN ONLY INPUT CIRCUIT OPEN?
  
  Yes
  - Go to step 2
  No
  - Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
CHECK FOR ACTIVE TIPM RUN RELAY CONTROL CIRCUIT DTC
1. With the scan tool, read Totally Integrated Control Module (TIPM) DTCs.
  Does the scan tool display active: B2122, or B2123 DTCs?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing and perform the diagnostic procedure for the active code.
  No
  - Go to step 3
INSPECT AIRBAG RUN CIRCUIT FUSE
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. Turn the ignition off.
2. Remove the Airbag Run Circuit Fuse No. 41 from the Power Distribution Center and inspect the fuse.
  NOTE: Check the connectors - Clean and repair as necessary.
  
  Is the fuse open?
  
  Yes
  - Go to step 4
  No
  - Go to step 6
CHECK (F500) FUSED RUN RELAY OUTPUT CIRCUIT RESISTANCE

Fig 1: Checking Fused Run Relay Output Circuit Resistance
Courtesy of CHRYSLER LLC

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

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. Measure the resistance of the (F500) Run Relay Output circuit between the Airbag Run Relay Output Circuit fuse No. 41 (supply side) terminal and ground.
  Is the resistance below 100.0 Ohms?
  
  Yes
  - Go to step 5
  No
  - 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.
  - Replace Airbag Run Circuit Fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
CHECK (F500 ) FUSED RUN RELAY OUTPUT CIRCUIT RESISTANCE WITH ORC CONNECTORS DISCONNECTED

Fig 2: Checking Fused Ignition Run Control Output Circuit
Courtesy of CHRYSLER LLC

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

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 connectors.
  NOTE: Check the connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool Adapter 8443-24 to the ORC C2 connector.
3. Measure the resistance of the (F500) Fused Run Relay Output circuit between the SRS Load Tool Adapter 8443-24 cavity C2-24 and ground.
  Is the resistance below 100.0 Ohms?
  
  Yes
  - Repair the (F500) Fused Run Relay Output circuit for a short to ground.
  - Replace the Airbag Run Circuit Fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
  No
  - Replace the ORC in accordance with the Service Information.
  - Replace the Airbag Run Circuit Fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
CHECK (F922) RUN RELAY OUTPUT CIRCUIT VOLTAGE

Fig 3: Checking Run Relay Output Circuit Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. Measure the voltage of the (F922) Run Relay Output circuit at the Airbag Run Circuit fuse terminal (supply side).
  Is the voltage above 6.0 volts?
  
  Yes
  - Go to step 7
  No
  - Repair the open (F922) Run Relay Output circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
CHECK (F500) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN

Fig 4: Checking Fused Ignition Run Control Output Circuit
Courtesy of CHRYSLER LLC

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. Reinstall the Airbag Run Circuit Fuse.
2. Disconnect the ORC connectors.
  NOTE: Check the connectors - Clean and repair as necessary.
3. Connect the Airbag SRS Load Tool Adaptor 8443-24 Adapter to the ORC C2 harness 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.
4. Measure the voltage of the (F500) Fused Run Relay Output Circuit between the SRS Load Tool Adapter 8443-24 cavity C2-24 and ground.
  Is the voltage above 6.0 volts?
  
  Yes
  - 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 .
  No
  - Repair the open (F500) Fused Run Relay Output circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .