LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1394 (Seat System - Seating) >> Diagnostic Tests >> Seats >> Pinpoint Tests >> Pinpoint Test X: DTC B111D - Passenger Blower Driver Overtemperature >> Pinpoint Test X: DTC B111D - Passenger Blower Driver OVERTEMPERATURE

Pinpoint Test X: DTC B111D - Passenger Blower Driver OVERTEMPERATURE

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The air bag warning indicator illuminates when the correct restraints control module (RCM) fuse is removed and the ignition switch is ON.
NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. X1 CHECK THE BLOWER CIRCUIT FOR AN OPEN 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM article.
    • Disconnect the passenger seat side air bag C313.
    • Disconnect: DCSM C3305c
    • Disconnect: Cushion TED C3303
    • Disconnect: Backrest TED C3311
      • 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 article.
      • Fig 1: Measuring Resistance
      GF0021394Courtesy of FORD MOTOR CO.
    • Measure the resistance between DCSM C3305c-8, circuit CHS08 (BN/YE), harness side and ground.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  X2.
    2. NO  : REPAIR the affected circuit. REPEAT the self-test.

      DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C313. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  2. X2 CHECK FOR A SHORT BETWEEN BLOWER CIRCUITS RHS08 (VT/WH) AND CHS08 (BN/YE) 
      Fig 2: Measuring Resistance
      GF0021395Courtesy of FORD MOTOR CO.
    • Measure the resistance between DCSM C3305c-7, circuit RHS08 (VT/WH), harness side and C3305c-8, circuit CHS08 (BN/YE), harness side.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  X3.
    2. NO  : REPAIR the affected circuits. REPEAT the self-test. CLEAR the DTCs.

      DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C313. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  3. X3 CHECK THE BLOWER RESISTANCE 
      Fig 3: Checking Blower Resistance
      GF0021401Courtesy of FORD MOTOR CO.
      NOTE: The ohmmeter must be connected with the positive lead to pin 2 and the negative lead to pin 4 when measuring. Ohmmeter leads incorrectly connected will result in false readings and lead to incorrect identification of components that are not faulty.
    • Measure the resistance between cushion TED C3303 pin 2 and pin 4, component side and between backrest TED C3311 pin 2 and pin 4, component side.
    • Are the resistances between 6K ohms and 9K ohms? 
    1. YES  : INSTALL a new DCSM and CARRY OUT programmable module installation (PMI). REFER to Dual Climate Controlled Seat Module (DCSM) . REPEAT the self-test. CLEAR the DTCs.
    2. NO  : If the resistance of the cushion TED was not  between 6,000 and 9,000 ohms, INSTALL a new cushion TED. REFER to Seat Cushion Thermo-Electric Device . REPEAT the self-test. CLEAR the DTCs.

      If the resistance of the backrest TED was not  between 6,000 and 9,000 ohms, INSTALL a new backrest TED. REFER to Seat Backrest Thermo-Electric Device . REPEAT the self-test. CLEAR the DTCs.

      DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C313. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

scientia non olet · About LEMON Manuals