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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 ((Power Inverter Module (PIM) - Electrical Diagnostics - 500 - Electric)) >> Standard Procedure >> Check Continuity And Short Circuit Of 3-Phase Wire Harness

Check Continuity And Short Circuit Of 3-Phase Wire Harness

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WARNING:

On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury.

Refer to HIGH-VOLTAGE POWER DOWN PROCEDURE to perform the High Voltage Power Down procedure.

NOTE:

Any time the Power Inverter Module (PIM) cover is removed, it MUST BE REPLACED due to a non reusable seal.

  1. Disconnect 3-Phase Wiring Harness from PIM and e-Motor.
  2. Probe e-Motor side pin 3 to PIM side pin 1, should be short.
  3. Probe e-Motor side pin 2 to PIM side pin 2, should be short.
  4. Probe e-Motor side pin 1 to PIM side pin 3, should be short.
  5. Probe e-Motor side pin 1 to PIM side pin 1, 2, should be open.
  6. Probe e-Motor side pin 2 to PIM side pin 1, 3, should be open.
  7. Probe e-Motor side pin 3 to PIM side pin 2, 3, should be open.
  8. If any of the above steps are not true, then replace 3-Phase Wiring Harness.
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