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Pinpoint Test AF: DTC B19A3

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When taking measurements at Dual Climate Controlled Seat Module (DCSM) harness connectors, do not insert the electrical probes into the female connector pins. Inserting the probes into connector pins can cause intermittent or open electrical connections after reassembly resulting in Diagnostic Trouble Codes (DTCs) and system failure. Touching the tip of these connector pins is recommended instead.
NOTE: If a seat equipped with a seat mounted side air bag is being repaired, the Supplemental Restraint System (SRS) must be depowered. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
NOTE: The air bag warning lamp illuminates when the Restraints Control Module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate an SRS fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  1. AF1 CHECK THE CUSHION TED BLOWER SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Seat Side Air Bag Module C3051.
    • Disconnect: Passenger Seat Side Air Bag Module C339.
    • Disconnect: DCSM C3265C.
      • WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any airbag when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
    • Connect the battery ground cable. Refer to BATTERY, BATTERY MOUNTING & BATTERY CABLES .
    • Ignition ON.
    • Measure the voltage between C3265C-11, circuit VHS18 (BN/GN), harness side and ground.
      Fig 1: Measuring Voltage Between C3265C-11, Circuit VHS18 (BN/GN) And Ground
      G06076936Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes  : GO to AF2.
    • No  : GO to  AF3.
  2. AF2 CHECK THE CUSHION TED BLOWER SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    • Disconnect: Cushion TED C3035.
    • Measure the voltage between C3265C-11, circuit VHS18 (BN/GN), harness side and ground.
      Fig 2: Measuring Voltage Between C3265C-11, Circuit VHS18 (BN/GN) And Ground
      G06076936Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
  3. AF3 CHECK THE CUSHION TED BLOWER SPEED CONTROL AND BLOWER OUTPUT CIRCUITS FOR A SHORT TOGETHER 
    • Ignition OFF.
    • Disconnect: Cushion TED C3035.
    • Measure the resistance between DCSM C3265C-11, circuit VHS18 (BN/GN), harness side and C3265C-16, circuit CHS03 (GN/BN), harness side.
      Fig 3: Measuring Resistance Between DCSM C3265C-11, Circuit VHS18 (BN/GN) And C3265C-16, Circuit CHS03 (GN/BN)
      G06134420Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
  4. AF4 CHECK THE CUSHION TED RESISTANCE FOR AN INTERNAL SHORT 
    • Measure the resistance between cushion TED C3035 pins 2 and 7, component side.
      Fig 4: Measuring Resistance Between Cushion TED C3035 Pins 2 And 7, Component Side
      G06076931Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
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