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Home >> Porsche >> 2018 >> Macan GTS >> Repair and Diagnosis >> External Pages >> Different car >> Section 112 (2X - Petrol, Exhaust, Engine-Electronic -- PANAMERA (970)) >> WM 2X00IN Insulation Fault Finding (PANAMERA S E-Hybrid, PANAMERA S Hybrid) >> Taking Measurements >> Preliminary Work

Preliminary Work

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  1. Unscrew and disconnect HV+ and HV- line at the high-voltage battery.
  2. Disconnect high-voltage test adapter High-voltage test adapter HVR 40 WE 1586  from the high-voltage line from the high-voltage battery to the high-voltage charger.
  3. Connect high-voltage test adapter High-voltage test adapter HVR 40 WE 1586  to the high-voltage battery. Leave the second connection on the test adapter open.

    Measurement 1.2 

  4. Perform measurement 1.2.
    1. 4.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, repair or replace the high-voltage battery following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, continue with measurement 1.3.

    Measurement 1.3 

  1. Release high-voltage plug connection at the air-conditioning compressor and disconnect it.
  2. Connect hybrid test adapter VAS 6558/1-3 from Hybrid test adapter set WE 1378  to the air-conditioning compressor -1-  and lock it.
    Fig 1: Connecting Hybrid Test Adapter VAS 6558/1--3 From Hybrid Test Adapter Set WE 1378 To Air-Conditioning Compressor
    G09805284Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Perform measurement 1.3.
    1. 3.1. Setpoint value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, replace air-conditioning compressor following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, leave the high-voltage connector disconnected from the air-conditioning compressor and continue with measurement 1.4.

    Measurement 1.4 



  1. Remove front left wheel. → Removing Wheel
  2. Remove front left wheel housing liner. → 505619 REMOVING AND INSTALLING FRONT WHEEL HOUSING LINER

    Measurement 1.4 

  3. Release high-voltage plug connection at the power electronics unit and disconnect it.
  4. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the disconnected high-voltage line for the high-voltage distributor -1-  . Leave the second connection on the test adapter open.
    Fig 1: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To Disconnected High-Voltage Line
    G09805285Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Perform measurement 1.4.
    1. 5.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, continue with measurement 1.5.
      • If the measured values are within the tolerance range, continue with measurement 1.4.1.

    Measurement 1.4.1 

  1. Disconnect high-voltage test adapter High-voltage test adapter HVR 40 WE 1586  from the high-voltage line from the power electronics unit to the high-voltage distributor.
  2. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the power electronics unit -1-  and lock it. Leave the second connection on the test adapter open.
    Fig 2: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To Power Electronics Unit
    G09805286Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Perform measurement 1.4.1.
    1. 3.1. Nominal value: 2.7 MOhm 
      • If the measured actual values are not within the tolerance range, continue with measurement 1.4.2.
      • If the measured values are within the tolerance range, repeat measurement 1.4.

    Measurement 1.4.2 



  1. Unscrew cover for the terminals in the power electronics unit and remove it. → Removing Power Electronics For High-Voltage System
  2. Unscrew terminals for the traction line to the HV battery, disconnect traction line at the housing and pull it out of the power electronics unit. → Removing Power Electronics For High-Voltage System

    Measurement 1.4.2 

  3. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the high-voltage connector on the power electronics unit -1-  . Leave the second connection on the test adapter open.
    Fig 1: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To High-Voltage Connector On Power Electronics Unit
    G09805287Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  4. Perform measurement 1.4.2.
    1. 4.1. Nominal value: 2.7 MOhm 
      • If the measured actual values are not within the tolerance range, continue with measurement 1.4.4.
      • If the measured values are within the tolerance range, continue with measurement 1.4.3.

    Measurement 1.4.3 

    Fig 2: Measuring Resistance At Terminal Shoes Of Traction Line For HV Battery
    G09805288Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Use the insulation tester Insulation tester WE 1379  to measure the resistance at the terminal shoes of the traction line -1-  for the HV battery.
    1. 1.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, replace traction line for the HV battery following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, repeat measurement 1.4.

    Measurement 1.4.4 



  1. Unscrew terminals for the 3-phase line to the electric motor, disconnect traction line at the housing and pull it out of the power electronics unit. → Removing Power Electronics For High-Voltage System

    Measurement 1.4.4 

  2. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the high-voltage connector -1-  on the power electronics unit. Leave the second connection on the test adapter open.
    Fig 1: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To High-Voltage Connector On Power Electronics Unit
    G09805289Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Perform measurement 1.4.4.
    1. 3.1. Nominal value: 2.9 MOhm 
      • If the measured actual values are not within the tolerance range, replace the power electronics unit following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, continue with measurement 1.4.5.

    Measurement 1.4.5 

    Fig 2: Measuring Resistance At Terminal Shoes Of 3-Phase Line For Electric Motor
    G09805290Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Use the insulation tester Insulation tester WE 1379  to measure the resistance at the terminal shoes of the 3-phase line -1-  for the electric motor.
    1. 1.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range and the vehicle is still covered under warranty, replace the 3-phase line and electric motor following consultation with Technical support, repeat the measurement and carry out subsequent work once the nominal values have been reached.→ WM 279019 REMOVING AND INSTALLING ELECTRIC MOTOR WITH DECOUPLER (HYBRID MODULE)
      • If the measured actual values are not within the tolerance range and the vehicle is not covered under warranty, continue with measurement 1.4.6
      • If the measured values are within the tolerance range, repeat measurement 1.4.

    Measurement 1.4.6 



  1. Remove electric motor as far as required until the 3-phase line can be unscrewed. → 279019 REMOVING AND INSTALLING ELECTRIC MOTOR WITH DECOUPLER (HYBRID MODULE)
  2. Loosen and disconnect 3-phase line to the electric motor. → 279019 REMOVING AND INSTALLING ELECTRIC MOTOR WITH DECOUPLER (HYBRID MODULE)

    Measurement 1.4.6 

  3. Use the insulation tester Insulation tester WE 1379  to measure the resistance at the terminal shoes of the 3-phase line for the electric motor.
    1. 3.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, replace the 3-phase line following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, continue with measurement 1.4.7.

    Measurement 1.4.7 

  1. Use the insulation tester Insulation tester WE 1379  to measure the resistance at the contacts in the electric motor.
    1. 1.1. Nominal value: Clarify this with Technical Support. 
      • If the measured actual values are not within the tolerance range, replace electric motor, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, repeat measurement 1.4.

    Measurement 1.5 



  1. Remove cover for front underbody. → 519219 REMOVING AND INSTALLING COVER FOR FRONT UNDERBODY
  2. Lower the front-axle support. → 400819 REMOVING AND INSTALLING FRONT-AXLE SUPPORT

    Measurement 1.5 

  3. Release and disconnect high-voltage plug connection at the electric passenger compartment heater. → Removing Electric Passenger Compartment Heater
  4. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the high-voltage connector -1-  for the high-voltage distributor -2-  . Leave the second connection on the test adapter open.
    Fig 1: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To High-Voltage Connector
    G09805291Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Perform measurement 1.5.
    1. 5.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, replace high-voltage distributor following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, continue with measurement 1.5.1.

    Measurement 1.5.1 

  1. Disconnect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  from the high-voltage connector for the high-voltage distributor.
  2. Connect high-voltage test adapter High-voltage test adapter HVA 280 WE 1585  to the high-voltage connector at the electric passenger compartment heater -1-  . Leave the second connection on the test adapter open.
    Fig 2: Connecting High-Voltage Test Adapter HVA 280 WE 1585 To High-Voltage Connector At Electric Passenger Compartment Heater
    G09805292Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Perform measurement 1.5.1.
    1. 3.1. Nominal value: > 550 MOhm 
      • If the measured actual values are not within the tolerance range, replace electric passenger compartment heater following consultation with Technical Support, repeat the measurement and carry out subsequent work once the nominal values have been reached. → Subsequent Work 
      • If the measured values are within the tolerance range, repeat measurement 1.5.
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