Diagnostic Test

VERIFY THAT DTC B1B56-1ST ROW PASSENGER SEAT BELT SENSOR CIRCUIT OPEN IS ACTIVE
NOTE: Make sure the battery is fully charged.
1. Turn the ignition on.
2. Using the scan tool, read ORC DTCs.
  Does the scan tool display active DTC: B1B56-1ST ROW PASSENGER SEAT BELT SENSOR CIRCUIT OPEN?
  
  Yes
  - Go to step 2
  No
  - Go to step 6
CHECK FOR VOLTAGE AT THE PASSENGER SEAT BELT SWITCH

Fig 1: Checking For Voltage At Passenger Seat Belt Switch
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Passenger Seat Belt Switch connector.
  NOTE: Check connectors - Clean and repair as necessary.
3. Turn the ignition on.
4. Measure the voltage between the (R274) Passenger Hall Effect (+) circuit and ground.
5. Measure the voltage between the (R272) Passenger Hall Effect (-) circuit and ground.
  Is voltage present on both circuits?
  
  Yes
  - Replace the Passenger Seat Belt Switch.
  - Perform the AIRBAG SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
  No
  - Go to step 3
CHECK FOR AN OPEN PASSENGER HALL EFFECT (-) CIRCUIT

Fig 2: Checking For An Open Passenger Hall Effect (-) 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. Disconnect the both ORC connectors.
  NOTE: Check the connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool Adapter 8443-24 to the ORC C1 connector.
3. Measure the resistance of the (R272) Passenger Hall Effect (-) circuit between the SRS Load Tool Adapter 8443-24 (C1 cavity 18) and the Passenger Seat Belt Switch connector cavity 1.
  Is the resistance below 10.0 Ohms?
  
  Yes
  - Repair the open (R272) Passenger Hall Effect (-) circuit.
  - Perform the AIRBAG SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
  No
  - Go to step 4
CHECK FOR AN OPEN PASSENGER HALL EFFECT (+) CIRCUIT

Fig 3: Checking For An Open Passenger Hall Effect (+) Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (R274) Passenger Hall Effect (+) circuit between the SRS Load Tool Adapter 8443-24 (C1 cavity 14) and the Passenger Seat Belt Switch connector cavity 2.
  Is the resistance below 10.0 Ohms?
  
  Yes
  - Repair the open (R274) Passenger Hall Effect (+) circuit.
  - Perform the AIRBAG SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
  No
  - Go to step 5
CHECK FOR PASSENGER SEAT BELT SWITCH CIRCUITS SHORTED TO GROUND

Fig 4: Checking For Passenger Seat Belt Switch Circuits Shorted To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (R274) Passenger Hall Effect (+) circuit between the Passenger Seat Belt Switch connector cavity 1 and ground.
2. Measure the resistance of the (R272) Passenger Hall Effect (-) circuit between the Passenger Seat Belt Switch connector cavity 2 and ground.
  Is the resistance below 5 Ohms on either circuit?
  
  Yes
  - Repair the shorted to ground (R272, R274) Passenger Hall Effect circuit in accordance with the Service Information.
  - Perform the AIRBAG SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
  No
  - Replace the ORC in accordance with the Service Information.
  - Perform the ORC VERIFICATION TEST. See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure .
TEST FOR INTERMITTENT CONDITION
1. Using the scan tool, record and erase all DTCs from all Airbag modules.
2. If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.
  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.
3. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
4. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
5. The following additional checks may assist you in identifying a possible intermittent problem.
6. Reconnect any disconnected components and harness connector.
  WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
7. Using the scan tool, monitor active codes as you work through the following steps.
  WARNING: Maintain a safe distance from all airbags while performing the following steps. Failure to follow these instructions may result in possible serious or fatal injury.
8. Wiggle the wiring harness and connectors of the related airbag circuit or component.
9. If only stored codes return, continue the test until the problem area has been isolated.
10. In the previous steps you have attempted to recreate the conditions responsible for setting the active DTC in question.
  Does the scan tool display any ACTIVE DTCs?
  
  Yes
  - See DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Diagnosis and Testing and perform the appropriate diagnostic procedure.
  No
  - No problem found at this time. Erase all codes before returning vehicle to customer.