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Isolation Measurements Of E-Motor

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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. Disconnect 3-Phase Connectors from e-Motor.
  2. Connect measurement adapter to 3 phase wiring connector on e-Motor.
  3. Using a qualified Isolation tester, take 3 measurements: measure isolation resistance of U/V/W to e-Motor housing.
  4. Wait 10 seconds between measurements.
  5. If measured values are not greater than 4.5M?, replace e-Motor.
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