Electronics - Design and Function - 4 of 4: Overview Volvo C70 II рестайлинг

Scheme 94

There are two versions of the phone module (PHM), with or without Volvo On Call functionality (market dependent).

The main task of the phone module (PHM) is to manage the following functions

1. voice calls
2. automatic connection to the Service Center in the event of a collision or alarm (Volvo On Call)
3. connection to the Service Center for other services when the SOS or ON CALL button is pressed (Volvo On Call).

The control module is above the glove compartment inside the dashboard.

A phone module (PHM) with Volvo On Call functionality cannot be installed as an aftermarket option.

The phone module (PHM) communicates partly with directly connected components and partly with other control modules via the CAN and MOST networks. All diagnostic communication between VIDA (Volvo scan tool) and the phone module (PHM) occurs via the CAN network.

The phone module (PHM) does not have its own keypad. It uses the menus in the keypad on the climate control module (CCM) and the display on the infotainment control module (ICM).

The control module checks activations and input and output signals via an integrated diagnostic system. A diagnostic trouble code (DTC) is stored if the control module detects an error. In certain cases the control module replaces the faulty signal with a substitute value.

For phone modules (PHM) with Volvo On Call functionality, the driver will also be notified via a message in the driver information module (DIM) if a diagnostic trouble code (DTC) is stored.

Any diagnostic trouble codes (DTCs) are stored in the control module memory. This information can be read off using VIDA (Volvo scan tool) via the data link connector in the vehicle.

If the phone module (PHM) is not powered, there will be no MOST network communication and the system is switched off.

The phone module (PHM) has a SIM card reader for the customer's own private phone subscription. For phone modules (PHM) with Volvo On Call function, there is also an internally installed SIM card. This subscription is only connected to the Service Center which handles Volvo On Call services.

For further information, see SIGNALS .

The following applies only to carphones with Volvo On Call

An initiated Volvo On Call service is always assigned higher priority than a standard private call. It will not be possible to make normal calls, and ongoing calls will be interrupted, while the Volvo On Call function is active.

The phone module (PHM) with Volvo On Call function has an integrated reserve battery. The reserve battery must ensure that the control module is supplied with voltage when a Volvo On Call service is activated if normal battery voltage is not available. The residual capacity of the reserve battery is calculated by the control module. When the battery is replaced the level of the capacity must be restored to full value. This is carried out using VIDA (Volvo scan tool). When the calculated capacity has fallen to 30% of full capacity a diagnostic trouble code is stored.

The phone module (PHM) with Volvo On Call function has a reserve microphone and speaker. The loudspeaker is inside the control module. The microphone is by the switches for Volvo On Call. The reserve microphone and speaker are only used when a Volvo On Call service is activated and the standard speaker and microphone for handsfree are not available.

Phone modules (PHM) with Volvo On Call function have an integrated reserve antenna. This is in the control module. The reserve antenna is only used when a Volvo On Call service is activated and if the standard antenna is not functioning. The reserve antenna ensures that the vehicle data can be transmitted and that a voice call can be connected the Volvo On Call Customer Service Center. The reserve antenna cannot be used for the customer's private subscription if the standard antenna is not working.

READING OFF THE CONTROL MODULE IDENTIFICATION

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N

The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

DESCRIPTION OF PROGRAMMABLE PARAMETERS, CUSTOMER ADAPTATION

There are two ways of carrying out customer adaptation

1. via the infotainment control module (ICM)
2. via VIDA (Volvo scan tool).

The parameters which can be changed are described in the table below.

Scheme 95

The lock function that is active when the car is delivered depends on the market. The system can be configured for total unlocking or 2 step unlocking.

Total unlocking means that all side doors are unlocked and that the tailgate/trunk lid can be opened by activating the switch on the handle.

During 2 stage unlocking, only the driver's door is unlocked first. If the remote control button is pressed again within 10 seconds, the other doors are unlocked.

Normally the vehicle is unlocked by activating the unlocking button on the remote control. This also deactivates the alarm if installed. Unlocking the car with the key blade should be seen as a last resort. If the car is unlocked with the key blade, the alarm will be triggered. The alarm can be switched off by inserting the ignition key in the ignition switch.

Scheme 96

If lock units with deadlocking are installed, there is an additional lock motor in each lock unit. The function of this lock motor is to mechanically disengage the inner door handle. Deadlocking is activated automatically 25 seconds after the vehicle was locked. It will not then be possible to open a side door from the inside, even if a window is smashed. This also means that anyone still in the vehicle when it is locked cannot get out. The function can be disengaged using the switch for reduced alarm which is in the front interior lighting panel in the roof.

Scheme 97

The key blade must be taken out of the remote control to activate this function. The function is activated by locking the glove compartment in the normal way using the key blade (turning 0 to 90 degrees) and then continuing to turn (from 90 to 180 degrees). This sets the glove compartment and trunk lid to valet mode and blocks outgoing calls on the phone module (PHM) if installed. On the C70, the ski hatch and the lockable storage compartments are also locked. A text message in the driver information module (DIM) indicates that the lock is active. The trunk lid cannot now be opened using the remote control or lock switches in the doors. The key blade is kept by the customer and the remote control can be handed to valet parking attendants or workshop staff who need access to the vehicle.

There are two lock cylinders by the lock mechanism for the rear seat backrests to ensure the degree of security required. These lock cylinders can be locked or unlocked using the key blade. There is no electrical indication that these locks are locked. The customer must check this themselves.

This function is deactivated by inserting the key blade in the lock cylinder in the glove compartment and turning it back a quarter of a turn (from 180 to 90 degrees). The trunk lid can then be opened using the remote control or central locking button.

Scheme 98

Tailgate/trunk lid can be opened using the switch on the tailgate/trunk lid.

The lock motor for the tailgate/trunk lid and switch is directly connected to the central electronic module (CEM). When the switch is affected, the central electronic module (CEM) checks the status of the lock system and activates the lock motor if opening is permitted. The tailgate/trunk lid does not open if the vehicle speed is higher than 7 km/h (5 mph) or if privacy locking is activated.

There is no "unlocked" position for the lock motor for the tailgate/trunk lid. When the motor is activated, it releases the catch in the body and the tailgate/trunk lid can be opened. The tailgate/trunk lid locks when it is closed again.

When the tailgate/trunk lid is to opened, the lock motor is powered for approximately 0.7 seconds or until the central electronic module (CEM) receives a signal from the indicator that it is open. If the trunk lid/tailgate is not indicated as open during this time, a diagnostic trouble code (DTC) is stored in the central electronic module (CEM).

The tailgate/trunk lid can be opened by activating the button on the remote control even if the rest of the vehicle is locked.

Scheme 99

The switch for unlocking the fuel tank filler cover is in the light switch module (LSM). The switch and lock motor are directly connected to the central electronic module (CEM). If the switch is affected, the central electronic module (CEM) is grounded and powers the lock motor which begins to function. The lock motor has a spring-loaded piston which returns to its original position after a fully completed cycle. This means that the lock motor only needs to operate in one direction.

If the function for automatic detection of fuel leakage is installed, there may be a delay of up to 1.5 seconds before the filler cover opens. This is so that the fuel tank has time to release the overpressure before the filler cover is opened. This function is only available on the American market.

Scheme 100

The interior lighting is checked by the central electronic module (CEM). The interior lighting comes on when the vehicle is unlocked.

There are also functions for external lights

1. local lighting
2. approach lights.

Local lighting

Local lighting is activated using the remote control. The following light when activated

1. interior lighting
2. parking lamps
3. license plate lighting
4. door mirror lighting (option).

The default setting is for the lighting to be on for 30 seconds or until the key is turned in the ignition switch. This time can be adapted to the wishes of the customer.

Approach lights

There is a function for approach lights as part of the lighting system. When the engine is off, the key is removed from the ignition and the dip switch is activated, the following lights

1. low beam
2. parking lamps
3. fog lamps
4. interior lighting.

The default setting for the lighting is 30 seconds. This time can be adapted to the wishes of the customer.

Customer settings

The duration that the local lighting and approach lights are on can be adapted to the wishes of the customer.

For information about customer adaptations, see: DESCRIPTION OF PROGRAMMABLE PARAMETERS, CUSTOMER ADAPTATION

Scheme 101

There are two contact breakers in the lock units in the side doors

1. contact breaker to indicate if the door is ajar (not fully closed)
2. contact breaker to indicate that the central locking motor is in the locked position.

The contact breaker which indicates if the door is ajar is directly connected to the central electronic module (CEM) from all doors.

The signals are used to generate error messages and diagnostic trouble codes (DTCs) if a door is not properly closed when the vehicle is driven or if locking or unlocking of one or more doors has failed one or more times.

There is only one contact breaker in the lock unit in the tailgate/trunk lid. This indicates whether the tailgate/trunk lid is open or closed.

For the C70 there is a LED in each door to indicate when the door is locked or unlocked. The LEDs are used instead of the traditional lock buttons on top of the doors. The LEDs flash for a short time after the doors have been locked or unlocked.

SYSTEM DESCRIPTION/DESIGN

The central locking system is a distributed system. Those parts which are included in the system are

1. central electronic module (CEM)
2. driver door module (DDM)
3. passenger door module (PDM)
4. right rear door module (RDM)
5. left rear door module (LDM)
6. driver information module (DIM)
7. phone module (PHM)
8. infotainment control module (ICM)
9. Convertible Roof Module (CRM)
10. switch for valet locking
11. switch for unlocking the fuel tank filler cover
12. lock motor units in the doors
13. lock motor at the fuel tank filler cover
14. lock motor for the trunk lid/tailgate
15. remote control receiver
16. Supplemental restraint system module (SRS)
17. indicator LED in the doors
18. lockable storage compartment
19. lock for ski hatch

Scheme 102

The central electronic module (CEM) (4/56) controls and monitors the central locking system and its functions. No door can be unlocked without a command from the central electronic module (CEM). Most of the system settings are stored in the central electronic module (CEM). Many of these settings are market dependent. For information about the settings which can be made, see: DESCRIPTION OF PROGRAMMABLE PARAMETERS, CUSTOMER ADAPTATION

The central electronic module (CEM) continually checks the system to monitor the status of the doors and lock motors.

Scheme 103

The driver door module (DDM) (3/126) and passenger door module (PDM) (3/127) are identical in appearance. The only difference between the two units are the software downloaded into them after installation in the vehicle. There are also different control panels connected to the control modules. The door control modules communicate with the central electronic module (CEM) via the low speed side of the CAN network.

The control panel on the driver's side has control buttons for adjusting the door mirrors, window lift mechanisms and the button for activating child-proof locking (not C70).

The control panel on the passenger side has control buttons for the power window mechanism.

There is also a button for locking and unlocking the central locking by the inner door handle on each side.

The door control modules are directly connected to the lock unit in each door. The door control modules lock and unlock the door on receipt of a command from the central electronic module (CEM). The door control modules can only unlock the door on receipt of a signal from the central electronic module (CEM).

Scheme 104

The driver information module (DIM) (5/1) displays a text message and lights a warning lamps if any of the side doors or tailgate/trunk lid or hood have been opened while driving. A micro-switch indicates that the doors or tailgate/trunk lid are fully closed. Only cars with an alarm have a micro-switch at the engine hood.

A yellow warning lamp lights if the vehicle speed is below 7 km/h (5 mph). The red warning lamp lights if the vehicle speed is above 7 km/h (5 mph).

The tailgate is only indicated by a text message and yellow warning lamp, irrespective of the speed.

There are two ways of carrying out customer adaptation

1. via the infotainment control module (ICM)
2. via VIDA (Volvo scan tool).

The parameters which can be changed are described in the table below.

Scheme 105

The lock function that is active when the car is delivered depends on the market. The system can be configured for total unlocking or 2 step unlocking.

Total unlocking means that all side doors are unlocked and that the tailgate/trunk lid can be opened by activating the switch on the handle.

During 2 stage unlocking, only the driver's door is unlocked first. If the remote control button is pressed again within 10 seconds, the other doors are unlocked.

Normally the vehicle is unlocked by activating the unlocking button on the remote control. This also deactivates the alarm if installed. Unlocking the car with the key blade should be seen as a last resort. If the car is unlocked with the key blade, the alarm will be triggered. The alarm can be switched off by inserting the ignition key in the ignition switch.

Scheme 106

If lock units with deadlocking are installed, there is an additional lock motor in each lock unit. The function of this lock motor is to mechanically disengage the inner door handle. Deadlocking is activated automatically 25 seconds after the vehicle was locked. It will not then be possible to open a side door from the inside, even if a window is smashed. This also means that anyone still in the vehicle when it is locked cannot get out. The function can be disengaged using the switch for reduced alarm which is in the front interior lighting panel in the roof.

The central locking system is a distributed system. Those parts which are included in the system are

1. central electronic module (CEM)
2. driver door module (DDM)
3. passenger door module (PDM)
4. driver information module (DIM)
5. phone module (PHM)
6. infotainment control module (ICM)
7. convertible Roof Module (CRM)
8. switch for valet locking
9. switch for unlocking the fuel tank filler cover
10. lock motor units in the doors
11. lock motor at the fuel tank filler cover
12. lock motor for the trunk lid/tailgate
13. remote control receiver
14. supplemental restraint system module (SRS)
15. indicator LED in the doors
16. lockable storage compartment
17. lock for ski hatch

Scheme 107

The central electronic module (CEM) (4/56) controls and monitors the central locking system and its functions. No door can be unlocked without a command from the central electronic module (CEM). Most of the system settings are stored in the central electronic module (CEM). Many of these settings are market dependent. For information about the settings which can be made, see: DESCRIPTION OF PROGRAMMABLE PARAMETERS, CUSTOMER ADAPTATION

The central electronic module (CEM) continually checks the system to monitor the status of the doors and lock motors.

Scheme 108

The driver door module (DDM) (3/126) and passenger door module (PDM) (3/127) are identical in appearance. The only difference between the two units are the software downloaded into them after installation in the vehicle. There are also different control panels connected to the control modules The door control modules communicate with the central electronic module (CEM) via the low speed side of the CAN network.

The control panel on the driver's side has control buttons for adjusting the door mirrors, window lift mechanisms and the button for activating child-proof locking (not C70).

The control panel on the passenger side has control buttons for the power window mechanism.

There is also a button for locking and unlocking the central locking by the inner door handle on each side.

The door control modules are directly connected to the lock unit in each door. The door control modules lock and unlock the door on receipt of a command from the central electronic module (CEM). The door control modules can only unlock the door on receipt of a signal from the central electronic module (CEM).

Scheme 109

The driver information module (DIM) (5/1) displays a text message and lights a warning lamps if any of the side doors or tailgate/trunk lid or hood have been opened while driving. A micro-switch indicates that the doors or tailgate/trunk lid are fully closed. Only cars with an alarm have a micro-switch at the engine hood.

A yellow warning lamp lights if the vehicle speed is below 7 km/h (5 mph). The red warning lamp lights if the vehicle speed is above 7 km/h (5 mph).

The tailgate is only indicated by a text message and yellow warning lamp, irrespective of the speed.

Scheme 110

Phone module (PHM) (16/60) is an option. The phone module (PHM) communicates with the central electronic module (CEM) via the low speed side of the CAN network. If a phone module (PHM) is installed, the unit can be used for remote unlocking via the Volvo On Call service. This means that the vehicle can be unlocked from a Volvo Service Center.

The phone module (PHM) can also automatically transmit an emergency signal if one or more airbags have been triggered. The emergency signal is also transmitted if the "SOS" button is pressed.

Scheme 111

The customer can personalize some of the central locking settings using the infotainment control module (ICM) (16/1). The infotainment control module (ICM) communicates with the central electronic module (CEM) via the low speed side of the CAN network. The central locking settings are presented via a menu system in the display on the infotainment control module (ICM). For further information about the settings which can be made, see: DESCRIPTION OF PROGRAMMABLE PARAMETERS, CUSTOMER ADAPTATION

The central locking settings are stored in the central electronic module (CEM) and are transmitted to the infotainment control module (ICM) when the ignition is switched on.

Scheme 112

The switch for valet locking is at one edge of the glove compartment in the dashboard. The switch is directly connected to the central electronic module (CEM). The switch is affected after the glove compartment has been locked in the normal way using the key blade (turning 0 to 90 degrees) and then continuing to turn (from 90 to 180 degrees). Applies to the C70: Valet locking also includes lockable storage compartments and the lock for the ski hatch.

Scheme 113

The switch for unlocking the fuel tank filler cover is on the light switch module (LSM) (3/111). The switch is directly connected to the central electronic module (CEM). The cover can be opened if the vehicle speed is below 7 km/h (5 mph).

For the American market, the function has a delay before the fuel tank filler cover can be opened. This is to allow for the cancellation of the automatic leak test and for the pressure in the tank to even out.

Scheme 114

The lock units are installed in the doors and are directly connected to the door control module in the relevant door.

There are different versions of the lock units, depending on the configuration of the lock motors.

There are two versions of the lock units in the front doors with lock motors for

1. central locking
2. central locking and deadlocking.

The central locking lock motor locks the door.

The door control modules can only unlock the doors on receipt of a command from the central electronic module (CEM). In addition to the lock motors, the lock units contain up to three contract breakers depending on the configuration

1. contact breaker to indicate that the central locking motor is in the locked position
2. contact breaker to indicate that the door is in the latch position (not fully closed)

The lock motors have built in overheating protection which prevents the motor from activating if there is a risk of the motor getting too hot.

READING THE CONTROL MODULE IDENTIFICATION

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

READING OFF CONTROL MODULE IDENTIFICATION

The control module can be identified by reading off a number of codes from the control module memory. The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. software number, diagnostics.

The following information can also be read off from the control module memory

1. serial number, front impact sensor
2. serial number, side impact sensor
3. serial number of the occupant weight sensor (OWS) (USA/CDN only).

The control module can be identified by reading off a number of codes from the control module memory. The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. software number, diagnostics.

The following information can also be read off from the control module memory

1. serial number, front impact sensor
2. serial number, side impact sensor
3. serial number of the occupant weight sensor (OWS) (USA/CDN only).

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory.

The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. diagnostic software P/N.

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory. The codes contain information about the control module

1. hardware P/N (control module without software)
2. hardware serial number (control module without software)
3. software P/N
4. software number, diagnostics.

VIDA (Volvo scan tool) identifies control modules by reading off a number of codes from the control module memory.

The codes contain the following information about the control module

1. hardware P/N
2. hardware serial number
3. software P/N
4. diagnostic software P/N.