Diagnostic Test

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

DETERMINE ACTIVE OR STORED DTC
NOTE:
Make sure that the battery is fully charged.

NOTE:
The scan tool, (special tool #8443A, SRS Load Tool), and DVOM are required to perform the following test.
1. Turn the ignition on.
  Select ACTIVE or STORED DTC:
  
  ACTIVE DTC
  
  NOTE:
  If DTC is active, disconnect and reconnect the inline Body/Seat connector and note if DTC remains active. DTC remained active?
  - Go To 2
  STORED DTC
  - Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Refer to RESTRAINTS SYSTEM INTERMITTENT TEST .
CHECK (R57) DRIVER SEAT BELT SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking Driver Seat Belt Switch Sense Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, 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 Driver Seat Belt Buckle Switch harness connector.
  NOTE:
  Check the connectors - Clean and repair as necessary.
2. Measure the resistance of the (R57) Driver Seat Belt Switch Sense circuit between ground and the appropriate terminal of the Driver Seat Belt Buckle Switch harness connector.
  Is the resistance below 5k Ohms?
  
  Yes
  
  NOTE:
  If the short is found in the Seat Harness, do not attempt to repair the Seat Harness. Replace the Seat Harness in accordance with the Service Information.
  - Replace the (R57) Driver Seat Belt Switch Sense circuit for a short to ground in accordance with the Service Information.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS-SYSTEM-VERIFICATION-TEST .
  No
  - Go To 3
CHECK (R57) DRIVER SEAT BELT SWITCH SENSE CIRCUIT FOR A SHORT TO THE (R59) DRIVER SEAT BELT SWITCH GROUND CIRCUIT

Fig 2: Checking Driver Seat Belt Switch Sense Circuit For A Short To The Driver Seat Belt Switch Ground Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between the (R57) Driver Seat Belt Switch Sense circuit and the (R59) Driver Seat Belt Switch Ground circuit at the appropriate terminals of the Driver Seat Belt Buckle Switch harness connector.
  Is the resistance below 5k Ohms?
  
  Yes
  
  NOTE:
  If the short is found in the Seat Harness, do not attempt to repair the Seat Harness. Replace the Seat Harness in accordance with the Service Information.
  - Replace the (R57) Driver Seat Belt Switch Sense circuit for a short to the (R59) Driver Seat Belt Switch Ground circuit in accordance with the Service Information.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS-SYSTEM-VERIFICATION-TEST .
  No
  - Go To 4
CHECK OPERATION OF THE DRIVER SEAT BELT SWITCH
1. Replace the Driver Seat Belt Buckle Switch in accordance with the Service Information. Refer to BUCKLE, SEAT BELT, REMOVAL .
2. 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.
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. Connect the scan tool to the Data Link Connector - use the most current software available.
5. Use the scan tool and erase all codes in the ORC.
6. Perform ORC module reset. Access the Miscellaneous Function menu from the ORC ECU Overview screen on the scan tool to perform this operation.
7. Wait one minute, and read active codes.
  Did the active B0050-2B-DRIVER SEATBELT BUCKLE SENSOR - WIRES SHORTED TOGETHER 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.
  
  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 Occupant Restraint Controller (ORC) in accordance with the Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS-SYSTEM-VERIFICATION-TEST .
  No
  - Repair is complete.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS-SYSTEM-VERIFICATION-TEST .