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Pinpoint Test Ad: DTC B103B/B1111

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. 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: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. AD1 CHECK THE TED CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Seat Side Air Bag C328.
    • Disconnect: Passenger Seat Side Air Bag C327.
    • Disconnect: DCSM  C3036a.
      • WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module 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, MOUNTING AND CABLES .
    • Measure the resistance between the following DCSM  C3036a pins, harness side and ground.
      CONNECTOR PIN AND CIRCUIT REFERENCE CHART

      Connector-Pin Circuit
      C3036a-G CHS02 (YE/BU)
      C3036a-H RHS02 (BU/OG)
      C3036a-J CHS01 (GY/VT)
      C3036a-K RHS01 (WH/VT)
    • Are the resistances greater than 10,000 ohms? 
    • Yes:  GO to AD2  .
    • No:  If the resistances of C3036a-G, circuit CHS02 (YE/BU) and/or C3036a-H, circuit RHS02 (BU/OG) to ground were not greater than 10,000 ohms to ground, GO to  AD6.

      If resistances of C3036a-J, circuit CHS01 (GY/VT) and/or C3036a-K, circuit RHS01 (WH/VT) to ground were not greater than 10,000 ohms to ground, GO to  AD7.

  2. AD2 CHECK THE TED CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition ON.
    • Measure the voltage between the following DCSM  C3036a pins, harness side and ground.
      CONNECTOR PIN AND CIRCUIT REFERENCE CHART

      Connector-Pin Circuit
      C3036a-G CHS02 (YE/BU)
      C3036a-H RHS02 (BU/OG)
      C3036a-J CHS01 (GY/VT)
      C3036a-K RHS01 (WH/VT)
    • Is voltage present on any circuits? 
    • Yes:  If voltage is present at C3036a-G and/or C3036a-H, GO to  AD8.

      If voltage is present at C3036a-J and/or C3036a-K, GO to  AD9.

    • No:  GO to AD3  .
  3. AD3 CHECK THE TED RESISTANCE 
    • Ignition OFF.
      • NOTE: Make sure the Thermo-Electric Devices (TEDs) are at room temperature and there is no air blowing across the TEDs  . Do not handle a TED  when measuring resistance. These conditions can cause incorrect readings and lead to incorrect identification of components that are not faulty.
    • Measure the resistance between:
      • DCSM  C3036a-G, circuit CHS02 (YE/BU), harness side and DCSM  C3036a-H, circuit RHS02 (BU/OG), harness side.
      • DCSM  C3036a-J, circuit CHS01 (GY/VT), harness side and C3036a-K, circuit RHS01 (WH/VT), harness side and ground.
        Fig 1: Measuring Resistance Between DCSM C3036a-G, Circuit CHS02 (YE/BU) And DCSM C3036a-H, Circuit RHS02 (BU/OG)
        G06173421Courtesy of FORD MOTOR CO.
    • Are the resistances between 0.9 and 10 ohms? 
    • Yes:  INSTALL a new DCSM  . REFER to DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) . REPEAT the self-test. CLEAR the DTCs.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C327.

      CONNECT driver seat side air bag module C328.

      REPOWER the SRS  . REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .

    • No:  If the resistance between DCSM  C3036a-G and C3036a-H was not between 0.9 and 10 ohms, GO to  AD5.

      If the resistance between DCSM  C3036a-J and C3036a-K was not between 0.9 and 10 ohms, GO to AD4  .

  4. AD4 CHECK THE RESISTANCE OF THE BACKREST TED 
    • Disconnect: Backrest TED  C3322.
    • Measure the resistance between backrest TED  C3322 pin 1 and pin 3, component side.
      Fig 2: Measuring Resistance Between Backrest TED C3322 Pin 1 And Pin 3, Component Side
      G06076908Courtesy of FORD MOTOR CO.
    • Is the resistance between 0.9 and 10 ohms? 
  5. AD5 CHECK THE RESISTANCE OF THE CUSHION TED 
    • Disconnect: Cushion TED  C3327.
    • Measure the resistance between cushion TED  C3327 pin 1 and pin 3, component side.
      Fig 3: Measuring Resistance Between Backrest TED C3322 Pin 1 And Pin 3, Component Side
      G06076908Courtesy of FORD MOTOR CO.
    • Is the resistance between 0.9 and 10 ohms? 
  6. AD6 CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO GROUND 
    • Disconnect: Cushion TED  C3327.
    • Measure the resistance between:
      • DCSM  C3036a-G, circuit CHS02 (YE/BU), harness side and ground.
      • DCSM  C3036a-H, circuit RHS02 (BU/OG), harness side and ground.
        Fig 4: Measuring Resistance Between DCSM C3036a-G, Circuit CHS02 (YE/BU), Harness Side And Ground
        G06255492Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
  7. AD7 CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO GROUND 
    • Disconnect: Backrest TED  C3322.
    • Measure the resistance between:
      • DCSM  C3036a-J, circuit CHS01 (GY/VT), harness side and ground.
      • DCSM  C3036a-K, circuit RHS01 (WH/VT), harness side and ground.
        Fig 5: Measuring Resistance Between DCSM C3036a-J, Circuit CHS01 (GY/VT), Harness Side And Ground
        G06134386Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
  8. AD8 CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: Cushion TED  C3327.
    • Ignition ON.
    • Measure the voltage between:
      • DCSM  C3036a-G, circuit CHS02 (YE/BU), harness side and ground.
      • DCSM  C3036a-H, circuit RHS02 (BU/OG), harness side and ground.
        Fig 6: Measuring Voltage Between DCSM C3036a-G, Circuit CHS02 (YE/BU), Harness Side And Ground
        G06134387Courtesy of FORD MOTOR CO.
    • Is voltage present on either circuit? 
  9. AD9 CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: Backrest TED  C3322.
    • Ignition ON.
    • Measure the voltage between:
      • DCSM  C3036a-J, circuit CHS01 (GY/VT), harness side and ground.
      • DCSM  C3036a-K, circuit RHS01 (WH/VT), harness side and ground.
        Fig 7: Measuring Voltage Between DCSM C3036a-J, Circuit CHS01 (GY/VT), Harness Side And Ground
        G06134388Courtesy of FORD MOTOR CO.
    • Is voltage present on either circuit? 
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