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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 >> Visual Check Of 3-Phase Wiring Harness Between E-Motor And PIM

Visual Check Of 3-Phase Wiring Harness Between E-Motor And PIM

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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.

  1. Verify correct connection order (pinning) between PIM and e-Motor.
  2. Verify that harness connections are tight and secure at PIM and e-Motor.
  3. Check for damage (bends, squeezes, damage to terminal ends).
  4. If contacts on the wiring harness are damaged or have moderate to high corrosion, then replace 3-Phase Wiring Harness.
  5. If PIM contacts to wiring harness are damaged or moderate to high corrosion, then replace PIM.
  6. If e-Motor contacts to wiring harness are damaged or moderate to high corrosion, then replace e-Motor.