FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.
Home >> Volvo >> 2009 >> V50 T5 AWD L5-2.5L Turbo VIN 67 B5254T7 >> Repair and Diagnosis >> Accessories and Optional Equipment >> Cellular Phone >> Description and Operation >> Phone Module (PHM) >> Function

Function






Function

Car phone




The phone module (PHM) (16/60) does not have its own menu keypad. It is controlled via the keypad of the climate control module (CCM) (3/112) or via the steering wheel buttons.
The climate control module (CCM) transmits menu navigation signals to the infotainment control module (ICM) (3/281) via the CAN network. The infotainment control module (ICM) then forwards the signals to the phone module (PHM) via the MOST network.
When using the menu via the steering wheel buttons information is transmitted from the steering wheel module (SWM) (3/254) to the infotainment control module (ICM) via LIN communication. The information is then transmitted to the phone module (PHM) via the MOST network.
Menu information is shown on the display on the infotainment control module (ICM). The information is transmitted from the phone module (PHM) to the infotainment control module (ICM) via the MOST network.
When the phone module (PHM) is started, when there are incoming calls or when the carphone is in use, a request is transmitted to the infotainment control module (ICM) to use the display.
Phone calls can be connected either via handsfree or via handset.
For calls via handsfree the microphone and speakers connected to audio module (AUD) (16/105) are used.
Phone module (PHM) sends a request to infotainment module (ICM) to obtain access to speakers and microphone. Infotainment module (ICM) sends a request on to audio module (AUD).
Communication between phone module (PHM), infotainment module (ICM) and audio module (AUD) takes place via MOST-net.

Volvo On Call




Volvo On Call is a system developed by Volvo which gives the owner access to various safety and service features. The system has been developed to give the driver and passengers rapid connection to the Volvo On Call Service Center using the carphone. The staff at the service center determine the action required depending on the circumstances. Using the data provided by the Volvo On Call system, the Service Center is able to identify the exact position of the car so that emergency and/or breakdown services can be directed quickly to the car. The different services provided by the Service Center can be divided into two categories, safety and service.

A Volvo On Call service can be activated in any of the following ways:
- by the customer using the switches for Volvo On Call (3/267)
- by the Volvo On Call Service Center
- by the vehicle system.
The strength of the lighting in the switches for Volvo On Call is controlled via the rheostat in the light switch module (LSM) (3/111).
Phone Module (PHM) (16/60) receives the rheostat signal directly from Central electronic module (CEM) (4/56) on the MOST-net.
When activating a Volvo On Call service, the phone module (PHM) transmits information to the infotainment control module (ICM). The infotainment control module (ICM) transmits this data onwards to the driver information module (DIM)(5/1) so that a text message is displayed indicating that a Volvo On Call service has been activated and its status.
Each time a Volvo On Call service is started, the relevant vehicle data is transmitted to the Volvo On Call Service Center. The vehicle data contains information about:
- Call type. SOS or On Call service.
- The time the message was sent. Phone module (PHM) receives information on time from the central electronic module (CEM) via the CAN network.
- The Vehicle VIN number. Phone Module (PHM) receives information from the central electronic module (CEM) via the controller area network (CAN).
- Alarm status (deactivated, activated, deployed). The phone module (PHM) receives information about the status of the alarm from the central electronic module (CEM) via the controller area network (CAN).
- Position of the ignition key. The Phone module (PHM) receives information about the position of the ignition key (in/out, position I, II or III) from the central electronic module (CEM) via the controller area network (CAN).
- Vehicle's position. Phone module (PHM) receives the vehicle's position from multimedia module (MMM) (16/108) via the MOST-net or via the direct-connected GPS-antenna).
- Voltage source. The voltage source that is used by the phone module (PHM), main or back-up battery.
- Engine running or not. The phone module (PHM) receives a signal from the central electronic module (CEM) via the controller area network (CAN).
- Fuel volume. The phone module (PHM) receives the information about the remaining fuel volume from the central electronic module (CEM) via the controller area network (CAN).
- Status of main battery. The phone module (PHM) receives information about the voltage over the main battery from the central electronic module (CEM) via the controller area network (CAN).
- Ambient and internal temperature. The phone module (PHM) receive information about the ambient temperature from the central electronic control module (CEM) and the internal temperature from the climate control module (CCM) (3/112) via the controller area network (CAN).
- Locked/unlocked. The phone module (PHM) receives information about whether the vehicle is locked from the inside or from the outside, from the Central electronic module (CEM) via the controller area network (CAN).
- Front and rear side window open/closed. Phone module (PHM) receives information about status of front and rear side windows from driver door module (DDM) (3/126) and passenger door module (PDM) (3/127) via the CAN-net.
- SRS activated or not. The phone module (PHM) receives information about whether the vehicle has been in a collision and the SRS system has been activated. The information is received from the Supplemental restraint system module (SRS) (4/9), both via the controller area network (CAN) and the collision cable. The collision cable runs from the Supplemental restraint system module (SRS) to the phone module (PHM) and the central electronic module (CEM). The collision cable is a backup solution in the event of the controller area network (CAN) communication disappearing.

Safety
An SOS service can be started in two different ways:
- automatically, in the event of a collision when a component in the SRS system has been activated
- manually, by the customer pressing the SOS button or selecting the service from the carphone menu.
In a collision where an SRS component is activated the signal is transmitted from the supplemental restraint system module (SRS) to the phone module (PHM). The phone module (PHM) transmits the vehicle data to Volvo On Call Service Center which connects a call to the vehicle. The call is made in order to establish what action is necessary, for example, whether an ambulance or recovery vehicle is required.
When a Volvo On Call service has been activated the reserve battery is used if there is not sufficient voltage in the main battery.

Service
The Volvo On Call Service Center gives the customer access to various services, such as:
- roadside assistance, for example in the event of a puncture or running out of fuel
- remote unlocking of the vehicle
- car tracking, can be activated at the request of the customer if the car is stolen
- notification to the owner when the alarm is activated.
The services that the customer can access vary between different markets.
The car is unlocked remotely after the owner has contacted the Volvo On Call Service Center, identified themselves with a password and requested the required service. The owner and the Volvo On Call Service Center then decide the time at which the car will be unlocked. The Service Center will then send a command to the phone module (PHM) to unlock the car.
Central electronic module (CEM) will then send a signal via the CAN-net to phone module (PHM) when the tailgate's handle is closed. The phone module (PHM) sends, if the signal from central electronic module (CEM) is within the time interval preset by the customer and Volvo On Call Service Center, via the CAN-net, a request to central electronic module (CEM) that the vehicle shall be unlocked.
Then phone module (PHM) sends a confirmation to Volvo On Call Service Center that the vehicle is unlocked.
When any of the doors or the tailgate is opened, the alarm is triggered. The alarm is active until it is turned off correctly.
If the alarm is activated, for example during an attempted theft, data about the status of the alarm is transmitted from the central electronic module (CEM) to the phone module (PHM) via the CAN network. If the alarm is active for more than 15 seconds, the phone module (PHM) transmits vehicle data to the Volvo On Call Service Center. The Center then contacts the owner to tell them what has happened.
Primarily, Volvo On Call Service Center calls the vehicle, if the person cannot give the correct password, you then call the second number that the owner has given to Service center.
If the car has been stolen, the owner can ask the Service Center to trace the car. The Service Center then transmits a request to the phone module (PHM) to continuously transmit vehicle data. The Volvo On Call Service Center determines the interval at which vehicle data is transmitted.

pro multis Credits:Operation CHARM About Operation CHARM