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

Check that the fuse for the control module is intact.

Check the power supply and the ground terminal for the phone module (PHM).

Remedy as necessary.

Other information: 

• See Checking the ground terminal 
• For information about fuse and terminal numbers, see the relevant Wiring Diagram.
• See Contents

Was a fault detected? 

• YES 

  Refer to Checking the function of the phone module (PHM) 

• NO 

  Refer to Signal missing