Checking Components And Wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

• Ignition off.

  Check the antenna cable between the phone module (PHM) connector C and the carphone antenna connector in the right-hand A post. Check for a short-circuit to supply voltage.

  Check the antenna cable between control module connector A and the carphone antenna connector in the right-hand A-post. Check for an open-circuit.

  Check the connectors for loose connections, damaged or bent terminal pins and oxidation.

  Remedy as necessary.

  Other information: 

  • To connect the breakout box, see CONNECTING THE BREAKOUT BOX
  • For information about signals and connectors, see SIGNAL SPECIFICATION
  • To access or replace the control module, see PHONE MODULE (PHM), REPLACING
  • To access and replace the carphone antenna, see ANTENNA CARPHONE, REPLACING
  • see CHECKING WIRING AND TERMINALS .
  Fig 2: Identifying 1-Bit Connector

  Courtesy of VOLVO CARS CORPORATION
  Fig 3: Breakout Box

  Courtesy of VOLVO CARS CORPORATION

Was a fault detected? 

• YES 

  See: VERIFICATION 

• NO 

  See: CHECKING THE CONNECTORS AND WIRING