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Home >> Fiat >> 2019 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Occupant Restraint Controller (Orc) - DTCS B0101-16 To B0116-1B - 500 - Electric) >> DTC Troubleshooting >> B0116-12-Front Driver Knee Bag - Circuit Short To Battery >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. 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 

      • Go To  2

      STORED DTC 

  2. CHECK FOR SHORTED DRIVER KNEE BOLSTER AIRBAG CIRCUITS 
    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 Knee Bolster Airbag harness connector.
      WARNING:

      Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels 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 (special tool #8443A, SRS Load Tool) and the (special tool #8443-8, Jumper, SRS Load) to the Driver Knee Bolster Airbag 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.

    3. With the scan tool, read the active ORC DTCs.

      Does the scan tool display: B0116-12-FRONT DRIVER KNEE BAG - CIRCUIT SHORT TO BATTERY - DTC?

      Yes 

      • Go To  3

      No 

  3. CHECK (R11) DRIVER KNEE BLOCKER SQUIB LINE 1 CIRCUIT OR (R9) DRIVER KNEE BLOCKER SQUIB LINE 2 CIRCUIT FOR A SHORT TO VOLTAGE 
    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 (special tool #8443A, SRS Load Tool) from the (special tool #8443-8, Jumper, SRS Load) from the Driver Knee Bolster Airbag harness connector.
    2. Disconnect the ORC harness connectors.
      NOTE:

      Check connectors - Clean and repair as necessary.

      NOTE:

      Probing of the circuit cavities at the ORC Module body harness connectors is only to be done with a approved test lead from the (special tool #10159, Test Leads, Dedicated), test lead 10159-6. Or a comparable test lead to prevent vehicle wiring harness connector damage during diagnostic procedures.

    3. Connect the test probes to the appropriate ORC harness connector terminal(s).
      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 (R11) Driver Knee Blocker Squib Line 1 circuit between the appropriate terminal and ground.
    5. Measure the voltage of the (R9) Driver Knee Blocker Squib Line 2 circuit between the appropriate terminal and ground.

      Is there any voltage present on either circuit?

      Yes 

      • Repair the (R11) Driver Knee Blocker Squib Line 1 circuits or (R9) Driver Knee Blocker Squib Line 2 with voltage present for a short to voltage in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      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. 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.