Checking the function of the phone module (PHM)

Check that the phone module (PHM) is powered and grounded by pressing the ON/OFF button and then pressing the YES button.

The LED in the ON/OFF button must light.

Does the LED in the ON/OFF button light? 

• YES 

  Refer to Checking communication with the phone module (PHM) 

• NO 

  Refer to Checking the power supply and ground for the phone module (PHM) 

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Identifying Ignition ON

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Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Reconnect the connectors. Reinstall the components
• Ignition on.

  Check that the phone module (PHM) is powered and grounded by pressing the ON/OFF button and then pressing the YES button.

  The LED in the ON/OFF button must light. A text message must appear in the display on the driver information module (DIM).

Does the LED in the ON/OFF button light? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Information