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Home >> Porsche >> 2019 >> Cayenne S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (2X Petrol, Exhaust, Engine-Electric - General E-Hybrid -- 9YA - Cayenne (9YA)) >> WM, 2X00IN Pilot Line Fault Finding >> Performing Measurements >> Measurement 8

Measurement 8

WARNING: This page is about a different variant/trim than selected.
WARNING: Incorrect handling of high-voltage components 
  • Electric shock 
  • Short circuit 
  • Fire 
  • Explosion 

    → Only appropriately trained and authorized persons are permitted to work on high-voltage vehicles and components.

    → Required qualification: High voltage technician or high voltage expert.

    → Observe national requirements and legislation for this work.

    → Always use insulated tools, e.g. > VAS 6883 - Insulated Tool Set  when working on these components.

    → Observe general warning notes for working on the high-voltage system.

    > 2X00IN GENERAL WARNING NOTES FOR WORKING ON THE HIGH-VOLTAGE SYSTEM 

Preliminary work for measurement 8 

  1. Release and disconnect high-voltage line from E-box to high-voltage charger (at the E-box).
    G15257794Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    High-voltage charger connection at E-box

    Performing measurement 8

    G15257795Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measurement 8 (shown as an example)

  2. Perform resistance measurement on high-voltage line (E-box to high-voltage charger) pilot line in and pilot line out.

    Refer to the wiring diagram for the pin assignment of the connectors 

    1. 2.1 Setpoint value < 0.5 Ohm 
  3. Evaluate measured result 
    1. 3.1 If the measured value is within  the tolerance range, continue with measurement 8.1  .
    2. 3.2 If the measured value is outside  the tolerance range, replace the high-voltage line.

      After carrying out repairs, repeat measurement 8.

    Preliminary work for measurement 8.1 

  4. Remove side trim panel for luggage compartment at the left.

    > 700319 REMOVING AND INSTALLING SIDE TRIM PANEL FOR REAR LUGGAGE COMPARTMENT - on "Removing"

  5. Release and disconnect high-voltage line from high-voltage charger to E-box (at high-voltage charger).
    G15257796Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    E-box connection at high-voltage charger

    Performing measurement 8.1

    G15257797Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measurement 8.1 (shown as an example)

  6. Perform resistance measurement on high-voltage line (high-voltage charger to E-box) pilot line in and pilot line out.

    Refer to the wiring diagram for the pin assignment of the connectors 

    1. 6.1 Setpoint value < 0.5 Ohm 
  7. Evaluate measured result 
    1. 7.1 If the measured value is within  the tolerance range, continue with measurement 8.2  .
    2. 7.2 If the measured value is outside  the tolerance range, replace the high-voltage line. After carrying out repairs, repeat measurement 8.1.

    Preliminary work for measurement 8.2 

  8. Release and disconnect high-voltage line from high-voltage charger to charging socket.
    G15257798Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Charging socket connection at high-voltage charger

    Performing measurement 8.2

    G15257799Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measurement 5.3

  9. Perform resistance measurement on high-voltage line (high-voltage charger to charging socket) pilot line in and pilot line out.

    Refer to the wiring diagram for the pin assignment of the connectors 

    1. 9.1 Setpoint value < 0.5 Ohm 
  10. Evaluate measured result 
    1. 10.1 If the measured value is within  the tolerance range, continue with measurement 8.3  .
    2. 10.2 If the measured value is outside  the tolerance range, replace the high-voltage line.

      After carrying out repairs, repeat measurement 8.2.

    Preliminary work for measurement 8.3 

  11. Release and disconnect high-voltage line from high-voltage charger to electric passenger compartment heater.
    G15257800Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Connection for electric passenger compartment heater at high-voltage charger

    Performing measurement 8.3

    G15257801Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measurement 8.3 (shown as an example)

  12. Perform resistance measurement on high-voltage line (high-voltage charger to electric passenger compartment heater) pilot line in and pilot line out.

    Refer to the wiring diagram for the pin assignment of the connectors 

    1. 12.1 Setpoint value < 0.5 Ohm 
  13. Evaluate measured result 
    1. 13.1 If the measured value is within  the tolerance range, continue with measurement 8.4  .
    2. 13.2 If the measured value is outside  the tolerance range, replace the high-voltage line.

      After carrying out repairs, repeat measurement 8.3.

    Preliminary work for measurement 8.4 

  14. Release and disconnect high-voltage line from electric passenger compartment heater to high-voltage charger.
    G15257802Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Connection for electric passenger compartment heater

  15. Perform measurement 8.4.
    G15257803Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measurement 8.4 (shown as an example)

  16. Perform resistance measurement on high-voltage line (electric passenger compartment heater to high-voltage charger) pilot line in and pilot line out.

    Refer to the wiring diagram for the pin assignment of the connectors 

    1. 16.1 Setpoint value < 0.5 Ohm 
  17. Evaluate measured result 
    1. 17.1 If the measured value is within  the tolerance range, continue with measurement 9  .
    2. 17.2 If the measured value is outside  the tolerance range, replace the high-voltage line.

      After carrying out repairs, repeat measurement 8.4.

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