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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat System - Seats-Seating - 1ST Row >> Diagnostic Routine(S) >> Diagnostic Routine O >> Pinpoint Test

Pinpoint Test

NOTE: When taking measurements at 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 DTCs  and system failure. Touching the tip of these connector pins is recommended instead.
  1. CHECK THE TED CIRCUITS FOR A SHORT TO GROUND
    1. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

      Ignition OFF.

    2. Disconnect: Driver Seat Side Air Bag C3051.
    3. Disconnect: Passenger Seat Side Air Bag C339.
    4. Disconnect: DCSM C3265A.
    5. Measure:
      DCSM Ground
      G08039001
      G08039000
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      G CHS02 (YE/BU)
      G08039002
      		 - Ground
      H RHS02 (BU/OG)
      G08039003
      		 - Ground
      J CHS01 (GY/VT)
      G08039004
      		 - Ground
      K RHS01 (WH/VT)
      G08039005
      		 - Ground

    Are the resistances greater than 10, 000 ohms? 

    1. Yes: GO to 2  .
    2. No: If the resistances of C3265A-G, circuit CHS02 (YE/BU) and/or C3265A-H, circuit RHS02 (BU/OG) to ground were not greater than 10, 000 ohms to ground, GO to  6  .

      If resistances of C3265A-J, circuit CHS01 (GY/VT) and/or C3265A-K, circuit RHS01 (WH/VT) to ground were not greater than 10, 000 ohms to ground, GO to  7  .

  2. CHECK THE TED CIRCUITS FOR A SHORT TO VOLTAGE
    1. Ignition ON.
    2. Measure:
      DCSM Ground
      G08039006
      G08039007
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      G CHS02 (YE/BU)
      G08039008
      		 - Ground
      H RHS02 (BU/OG)
      G08039009
      		 - Ground
      J CHS01 (GY/VT)
      G08039010
      		 - Ground
      K RHS01 (WH/VT)
      G08039011
      		 - Ground

    Is any voltage present? 

    1. Yes: If voltage is present at C3265A-G and/or C3265A-H, GO to  8  .

      If voltage is present at C3265A-J and/or C3265A-K, GO to  9  .

    2. No: GO to 3  .
  3. CHECK THE TED RESISTANCE
    1. Ignition OFF.
    2. NOTE: Make sure the 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 damaged.

      Measure:

      DCSM DCSM
      G08039012
      G08039013
      C3265A C3265A
      Pin Circuit Measurement / Action Pin Circuit
      G CHS02 (YE/BU)
      G08039014
      		 H RHS02 (BU/OG)
      J CHS01 (GY/VT)
      G08039015
      		 K RHS01 (WH/VT)

    Are the resistances between 0.9 and 10 ohms? 

    1. Yes: GO to  10  .
    2. No: If the resistance between DCSM C3265A-G and C3265A-H was not between 0.9 and 10 ohms, GO to  5  .

      If the resistance between DCSM C3265A-J and C3265A-K was not between 0.9 and 10 ohms, GO to 4  .

  4. CHECK THE RESISTANCE OF THE BACKREST TED
    1. Disconnect: Driver Seat Backrest TED C3034.
    2. Measure:
      Driver Seat Backrest TED Driver Seat Backrest TED
      G08039016
      G08039017
      C3034 Component Side C3034 Component Side
      Pin Circuit Measurement / Action Pin Circuit
      1 -
      G08039018
      		 3 -

    Is the resistance between 0.9 and 10 ohms? 

    1. Yes: REPAIR circuit CHS01 (GY/VT) or RHS01 (WH/VT) for an open circuit or high resistance. GO to  11.
    2. No: INSTALL a new seat backrest TED. REFER to Seat Backrest Thermo-Electric Device (TED) . GO to  11.
  5. CHECK THE RESISTANCE OF THE CUSHION TED
    1. Disconnect: Driver Seat Cushion TED C3035.
    2. Measure:
      Driver Seat Cushion TED Driver Seat Cushion TED
      G08039019
      G08039020
      C3035 Component Side C3035 Component Side
      Pin Circuit Measurement / Action Pin Circuit
      1 -
      G08039021
      		 3 -

    Is the resistance between 0.9 and 10 ohms? 

    1. Yes: REPAIR circuit CHS02 (YE/BU) or RHS02 (BU/OG) for an open circuit or high resistance. GO to  11.
    2. No: INSTALL a new seat cushion TED. REFER to Seat Cushion Thermo-Electric Device (TED) . GO to  11.
  6. CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO GROUND
    1. Disconnect: Driver Cushion TED C3035.
    2. Measure:
      DCSM Ground
      G08039022
      G08039023
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      G CHS02 (YE/BU)
      G08039024
      		 - Ground
      H RHS02 (BU/OG)
      G08039025
      		 - Ground

    Are the resistances greater than 10, 000 ohms? 

    1. Yes: INSTALL a new seat cushion TED. REFER to Seat Cushion Thermo-Electric Device (TED) . GO to  11.
    2. No: REPAIR the affected circuit. GO to  11.
  7. CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO GROUND
    1. Disconnect: Driver Seat Backrest TED C3034.
    2. Measure:
      DCSM Ground
      G08039026
      G08039027
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      J CHS01 (GY/VT)
      G08039028
      		 - Ground
      K RHS01 (WH/VT)
      G08039029
      		 - Ground

    Are the resistances greater than 10, 000 ohms? 

    1. Yes: INSTALL a new seat backrest TED. REFER to Seat Backrest Thermo-Electric Device (TED) . GO to  11.
    2. No: REPAIR the affected circuit. GO to  11.
  8. CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO VOLTAGE
    1. Ignition OFF.
    2. Disconnect: Driver Cushion TED C3035.
    3. Ignition ON.
    4. Measure:
      DCSM Ground
      G08039030
      G08039031
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      G CHS02 (YE/BU)
      G08039032
      		 - Ground
      H RHS02 (BU/OG)
      G08039033
      		 - Ground

    Is any voltage present on either circuit? 

    1. Yes: REPAIR the affected circuit. GO to  11.
    2. No: INSTALL a new seat cushion TED. REFER to Seat Cushion Thermo-Electric Device (TED) . GO to  11.
  9. CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO VOLTAGE
    1. Ignition OFF.
    2. Disconnect: Driver Backrest TED C3034.
    3. Ignition ON.
    4. Measure:
      DCSM Ground
      G08039034
      G08039035
      C3265A Ground
      Pin Circuit Measurement / Action Pin Circuit
      J CHS01 (GY/VT)
      G08039036
      		 - Ground
      K RHS01 (WH/VT)
      G08039037
      		 - Ground

    Is any voltage present? 

    1. Yes: REPAIR the affected circuit. GO to  11.
    2. No: INSTALL a new seat backrest TED. REFER to Seat Backrest Thermo-Electric Device (TED) . GO to  11.
  10. CHECK FOR CORRECT DCSM OPERATION
    1. Ignition OFF.
    2. Disconnect and inspect all DCSM connectors.
    3. 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
    4. Reconnect the DCSM connectors. Make sure they seat and latch correctly.
    5. Connect: Driver Seat Backrest TED C3034 (if previously disconnected).
    6. Connect: Driver Seat Cushion TED C3035 (if previously disconnected).
    7. Operate the system and determine if the concern is still present.

    Is the concern still present? 

    1. Yes: CHECK OASIS  for any applicable TSBs  . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs  address this concern, INSTALL a new DCSM. REFER to Dual Climate Controlled Seat Module (DCSM) . GO to 11  .
    2. 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 11  .
  11. CHECK FOR SRS DTCs 
    1. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

      Ignition OFF.

    2. Connect: Driver Seat Side Air Bag C3051.
    3. Connect: Passenger Seat Side Air Bag C339.
    4. Connect: DCSM C3265A (if previously disconnected).
    5. Connect: Driver Seat Backrest TED C3034 (if previously disconnected).
    6. Connect: Driver Seat Cushion TED C3035 (if previously disconnected).
    7. Ignition ON.
    8. Using a scan tool, clear the RCM DTCs  .
    9. Cycle the ignition OFF then ON.
    10. Using a scan tool, perform RCM self-test.

    Are any RCM DTCs retrieved during self-test? 

    1. Yes: REFER to DTC CHART: RESTRAINT CONTROL MODULE (RCM) for pinpoint test direction.
    2. No: The repair is complete. RETURN the vehicle to the customer.
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