April 5, 2026: LEMON Manuals is launched! Read the announcement.

Checking The Component And Wiring

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS CORPORATION

Ignition off
Disconnect connector C from the phone module (PHM)
Disconnect connector A from the phone module (PHM).
Check the cable for the carphone antenna. Check for a short-circuit to supply voltage.

Check between:
- connector A terminal #5 (#5) and connector C terminal #1
- connector A terminal #5 (#5) and connector C terminal #2.
Check the cable for the carphone antenna. Check for an open-circuit.

Take a reading on the antenna cable connector between terminals #1 and #2. If the antenna cable is OK, the resistance must be approximately 10 kΩ.

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

Try replacing the carphone antenna if the cables are OK.

Remedy as necessary.

Other information:
- see SIGNAL SPECIFICATION
- see CONNECTING THE BREAKOUT BOX
- see LOCATION OF COMPONENTS
- see PHONE MODULE (PHM) (2011)
- see ANTENNA, GLOBAL POSITIONING SYSTEM MODULE (GPS)
- see CONTENTS
Fig 2: Identifying 1-Bit Connector
Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Ohms Display
Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Carphone Antenna
Courtesy of VOLVO CARS CORPORATION

Continue
Refer to VERIFICATION