LEMON Manuals: Even more car manuals for everyone
Home >> Fiat >> 2016 >> 500 Turbo, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Occupant Restraint Controller (Orc) - DTCS B0118-95 To U0127-00 - 500 - Electric) >> DTC Troubleshooting >> B0127-11-Front Driver Buckle Switch - Circuit Short To Ground >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. VERIFY ACTIVE DTC 
    NOTE:

    Make sure the battery is fully charged.

    1. Turn the ignition on.
    2. With the scan tool, read ORC DTCs.

      Does the scan tool display active BUCKLE SWITCH - CIRCUIT SHORT TO GROUND DTC?

      Yes 

      • Go To  2

      No 

  2. CHECK DRIVER SEAT BELT BUCKLE SWITCH CIRCUITS FOR A SHORT TO GROUND 
    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 Seat Belt Buckle Switch harness connector.
      NOTE:

      Check connectors - Clean and repair as necessary.

    2. Measure the resistance of the Seat Belt Buckle Switch Sense circuit between the appropriate terminal of the Seat Belt Buckle Switch harness connector and ground.
    3. Measure the resistance of the Seat Belt Buckle Switch Ground circuit between the appropriate terminal of the Seat Belt Switch harness connector and ground.

      Is the resistance below 10k Ohms on any of these circuits?

      Yes 

      • Repair the Seat Belt Buckle Switch circuits 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
  3. CHECK THE DRIVER SEAT BELT SWITCH CIRCUITS FOR A SHORT TO GROUND 
    1. Measure the resistance between the Seat Belt Buckle Switch Sense circuit and Seat Belt Buckle Switch Ground circuit at the appropriate terminals of the Seat Belt Buckle Switch harness connector.

      Is the resistance below 10k Ohms on any of these circuits?

      Yes 

      • Repair the Seat Belt Buckle Switch Sense circuit for a short to the Seat Belt Buckle 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
  4. CHECK OPERATION OF THE SEAT BELT BUCKLE SWITCH 
    1. Replace the Seat Belt Buckle Switch in accordance with the Service Information.
    2. Reconnect the vehicle body harness connector to the Seat Belt Buckle Switch.
    3. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
      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. Connect the scan tool to the Data Link Connector - use the most current software available.
    5. Use the scan tool and erase the stored codes in all airbag system modules.
    6. Turn the Ignition OFF, and wait 15 seconds before turning the Ignition ON.
    7. Wait one minute, and read active DTCs and if there are none present read the stored DTCs.

      Does the scan tool display active BUCKLE SWITCH - CIRCUIT SHORT TO GROUND DTC?

      Yes 

      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.

      WARNING:

      If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.

      No