Checking the function of the phone module (PHM)

For further information about the fuse and terminal pin numbers, see the relevant Wiring Diagram.

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: Identifying Connector(s) Reinstallation

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• 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