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PINPOINT TEST J: DTCs B1141/B1142 - CONVERTIBLE TOP FULL DOWN/UP POSITION SWITCH CIRCUIT FAILURE

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  1. J1 CARRY OUT THE ON-DEMAND SELF TEST FOR THE CONVERTIBLE TOP AJAR SWITCH 
    NOTE: False DTCs will set if the convertible top is not in the full down position before carrying out this test.
    • Connect the diagnostic tool.
    • Key in ON position.
    • With the convertible top and the rear windows in the full down position, carry out the on-demand self test for the SJB.
    • Does DTC B1141 or DTC B1142 set as current? 
    1. YES  : Go to  J2.
    2. NO  : The concern is not present at this time. RETURN the vehicle to the customer.
  2. J2 CHECK THE CONVERTIBLE TOP AJAR SWITCH OPERATION 
    • Key in OFF position.
    • Disconnect: Convertible Top Ajar Switch C3266
      • Fig 1: Checking For Convertible Top Ajar Switch Operation
      GF0014890Courtesy of FORD MOTOR CO.
    • Measure the resistance between convertible top ajar switch C3226-1, component side and convertible top ajar switch C3266-3, component side, with convertible top in the full up position; and between convertible top ajar switch C3226-2, component side and convertible top ajar switch C3266-3, component side, with convertible top in the full down position.
    • Are the resistances less than 20 ohms? 
    1. YES  : Go to  J3.
    2. NO  : INSTALL a new convertible top ajar switch. For additional information, refer to CONVERTIBLE TOP . CLEAR the DTCs. REPEAT the self-test.
  3. J3 CHECK CIRCUIT 1205 (BK) FOR AN OPEN 
      Fig 2: Measuring Resistance Between Convertible Top Ajar Switch C3266-3, Circuit 1205 (BK) & Ground
      GF0000106Courtesy of FORD MOTOR CO.
    • Measure the resistance between convertible top ajar switch C3266-3, circuit 1205 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  J4.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  4. J4 CHECK CIRCUITS 700 (WH/VT) AND 1558 (TN/BK) FOR A SHORT TO VOLTAGE 
    • Disconnect: SJB C2280c
    • Key in ON position.
      • Fig 3: Checking Circuit 700 (WH/VT) And 1558 (TN/BK) For Short To Voltage
      GF0014893Courtesy of FORD MOTOR CO.
    • Measure the voltage between convertible top ajar switch C3266-2, circuit 700 (WH/VT), harness side and ground; and between convertible top ajar switch C3266-1, circuit 1558 (TN/BK), harness side and ground.
    • Is any voltage present? 
    1. YES  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
    2. NO  : Go to  J5.
  5. J5 CHECK CIRCUITS 700 (WH/VT) AND 1558 (TN/BK) FOR A SHORT TO GROUND 
    • Key in OFF position.
      • Fig 4: Checking Circuit 1558 (TN/BK) And 700 (WH/VT) For Short To Ground
      GF0014891Courtesy of FORD MOTOR CO.
    • Measure the resistance between convertible top ajar switch C3266-1, circuit 1558 (TN/BK), harness side and ground; and between convertible top ajar switch C3266-2, circuit 700 (WH/VT), harness side and ground.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  J6.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  6. J6 CHECK CIRCUITS 700 (WH/VT) AND 1558 (TN/BK) FOR AN OPEN 
      Fig 5: Checking Circuits 700 (WH/VT) And 1558 (TN/BK) For Open
      GF0014892Courtesy of FORD MOTOR CO.
    • Measure the resistance between SJB C2280c-19, circuit 700 (WH/VT), harness side and convertible top ajar switch C3266-2, circuit 700 (WH/VT), harness side; and between SJB C2280c-18, circuit 1558 (TN/BK), harness side and convertible top ajar switch C3266-1, circuit 1558 (TN/BK), harness side.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  J7.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  7. J7 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion.
      • pushed-out pins.
    • Connect all the SJB connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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