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Pinpoint Test D: Left Rear Low Frequency Initiator Circuit

  1. D1: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 
    1. Ignition off.
    2. Disconnect the left hand rear low-frequency initiator electrical connector, C4MC42.
    3. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 2 Negative terminal
      G11504227

    Is the resistance less than 10, 000 Ohms?

    • Yes: GO to  D5.
    • No: GO to  D2.
  2. D2: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 
    1. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 2 Positive terminal

    Is the resistance less than 10, 000 Ohms?

    • Yes: GO to  D6.
    • No: GO to  D3.
  3. D3: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 
    1. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 1 Negative terminal

    Is the resistance less than 10, 000 Ohms?

    • Yes: GO to  D7.
    • No: GO to  D4.
  4. D4: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 
    1. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 1 Positive terminal

    Is the resistance less than 10, 000 Ohms?

    • Yes: GO to  D8.
    • No: GO to  D9.
  5. D5: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
    2. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 2 Negative terminal
      G11504228

    Is the resistance less than 10, 000 Ohms?

    • Yes  : REPAIR the short circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No  : INSTALL a new Tire Pressure Monitoring System module. Refer to:

      Tire Pressure Monitoring System Module - Convertible  (Removal and Installation),

      Tire Pressure Monitoring System Module - 2-Door  (Removal and Installation).

  6. D6: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
    2. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 2 Positive terminal
    G11504228

    Is the resistance less than 10, 000 Ohms?

    • Yes  : REPAIR the short circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No  : INSTALL a new Tire Pressure Monitoring System module. Refer to:

      Tire Pressure Monitoring System Module - Convertible  (Removal and Installation),

      Tire Pressure Monitoring System Module - 2-Door  (Removal and Installation).

  7. D7: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
    2. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 1 Negative terminal
      G11504228

    Is the resistance less than 10, 000 Ohms?

    • Yes  : REPAIR the short circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No  : INSTALL a new Tire Pressure Monitoring System module. Refer to:

      Tire Pressure Monitoring System Module - Convertible  (Removal and Installation),

      Tire Pressure Monitoring System Module - 2-Door  (Removal and Installation).

  8. D8: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
    2. Measure the resistance between:
      C4MC42, HARNESS SIDE BATTERY
      Pin 1 Positive terminal
      G11504228

    Is the resistance less than 10, 000 Ohms?

    • Yes  : REPAIR the short circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No  : INSTALL a new Tire Pressure Monitoring System module. Refer to:

      Tire Pressure Monitoring System Module - Convertible  (Removal and Installation),

      Tire Pressure Monitoring System Module - 2-Door  (Removal and Installation).

  9. D9: CHECK THE INITIATOR RETURN CIRCUIT FOR HIGH RESISTANCE 
    1. Measure the resistance between:
    C3MC39A, HARNESS SIDE C4MC42, HARNESS SIDE
    Pin 6 Pin 2

    Is the resistance greater than 5 Ohms?

    • Yes  : REPAIR the high resistance circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No: GO to  E1.
  10. D10: CHECK THE INITIATOR CIRCUIT FOR HIGH RESISTANCE 
    1. Measure the resistance between:
      C3MC39A, HARNESS SIDE C4MC42, HARNESS SIDE
      Pin 5 Pin 1

    Is the resistance greater than 5 Ohms?

    • Yes  : REPAIR the high resistance circuit. This circuit contains intermediate connector, C44-W. For additional information, refer to the wiring diagram. Clear the DTC and run an On Demand Self Test (ODST) using the manufacturer approved diagnostic system to confirm rectification.
    • No  : INSTALL a new rear left hand low-frequency initiator. Refer to: Tire Pressure Monitoring System Rear Antenna .
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