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Home >> Jaguar >> 2010 >> XFR >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wheels & Tires -- XF/X250 >> Wheels And Tires >> Diagnosis And Testing >> Tire Pressure Monitoring System >> Pinpoint Tests >> Pinpoint Test B: Left Front Low Frequency Initiator Circuit

Pinpoint Test B: Left Front Low Frequency Initiator Circuit

  1. B1: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 
    1. Ignition off.
    2. Disconnect the left hand front low-frequency initiator electrical connector, C1MC40.
      G11420577
    3. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 2 Negative terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • GO to  B5.

      No 

      • GO to  B2.
  2. B2: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 
    1. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 2 Positive terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • GO to   B6 . 

      No 

      • GO to B3. 
  3. B3: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND
    1. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 1 Negative terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • GO to   B7 . 

      No 

      • GO to   B4 . 
  4. B4: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 
    1. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 1 Positive terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • GO to   B8 . 

      No 

      • GO to   B9 . 
  5. B5: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
      G11420578
    2. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 2 Negative terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • REPAIR the short circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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 INSTALLATION  .
  6. B6: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
      G11420579
    2. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 2 Positive terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • REPAIR the short circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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 INSTALLATION  .
  7. B7: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
      G11420580
    2. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 1 Negative terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • REPAIR the short circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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 INSTALLATION  .
  8. B8: CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS OR THE MODULE 
    1. Disconnect the Tire Pressure Monitoring System module connector, C3MC39A.
      G11420581
    2. Measure the resistance between:
      C1MC40, HARNESS SIDE BATTERY
      Pin 1 Positive terminal

      Is the resistance less than 10, 000 ohms?

      Yes 

      • REPAIR the short circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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 INSTALLATION  .
  9. B9: CHECK THE INITIATOR CIRCUIT FOR HIGH RESISTANCE 
    1. Measure the resistance between:
      C3MC39A, HARNESS SIDE C1MC40, HARNESS SIDE
      Pin 14 Pin 2

      Is the resistance greater than 5 ohms?

      Yes 

      • REPAIR the high resistance circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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   B10 . 
  10. B10: CHECK THE INITIATOR CIRCUIT FOR HIGH RESISTANCE 
    1. Measure the resistance between:
      C3MC39A, HARNESS SIDE C1MC40, HARNESS SIDE
      Pin 13 Pin 1

      Is the resistance greater than 5 ohms?

      Yes 

      • REPAIR the high resistance circuit. This circuit contains intermediate connector, C13-B. For additional information, refer to the applicable SYSTEM 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 left hand front low-frequency initiator. Refer to INSTALLATION .
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