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Pinpoint Test Aa : DTC B19A6

WARNING: This page is about a different car, the 2017 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.

  2. AA1 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT FOR A SHORT TO GROUND

    • Disconnect: Passenger Side Airbag In-line C3053 .

    • Disconnect: Passenger Backrest Blower Motor C3039 .

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3265C-4
      GFD177137Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  AA2
    No  REPAIR the circuit. GO to  AA5

  3. AA2 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT AND BLOWER GROUND CIRCUIT FOR A SHORT TOGETHER

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3265C-4
      GFD177137Courtesy of FORD MOTOR COMPANY
      		 C3265C-7

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  AA3
    No  REPAIR the circuits. GO to  AA5

  4. AA3 DETERMINE BACKREST BLOWER MOTOR OR SCME (FRONT SEAT CLIMATE CONTROL MODULE) FAILURE

    • Remove the backrest blower motor from the driver seat and install it on the passenger seat.

    • Connect: Passenger Backrest Blower Motor C3039 .

    • Start the engine and check operation of the passenger seat climate controlled seat system.

    Does the seat operate with the backrest blower motor from the other seat installed? 

    Yes  INSTALL a new passenger seat backrest blower motor. Refer to: Front Seat Backrest Blower Motor . GO to  AA5
    No  GO to  AA4

  5. AA4 CHECK THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all of the SCME connectors.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins as necessary
      • pushed-out pins - install new pins as necessary

    • Reconnect the SCME connectors. Make sure they seat and latch correctly.

    • NOTE: Do not reconnect Passenger Side Airbag In-line C3053 at this time.

      Reconnect all previously disconnected connectors.

    • Ignition ON.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCME. Refer to: Front Seat Climate Control Module [SCME] . GO to  AA5
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. GO to  AA5

  6. AA5 VERIFY THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) PROVES OUT SUCCESSFULLY

    • Connect: Passenger Side Airbag In-line C3053 .

    • Connect all previously disconnected connectors.

    Did the SRS prove out successfully? 

    Yes  Repair is complete. RETURN the vehicle to the customer.
    No  REFER to: Airbag Supplemental Restraint System (SRS) .
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