PRIVATE LOCKING Volvo C70 II

PRIVATE LOCKING

The private locking function prevents entry to certain areas and functions in the vehicle.

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 144

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 145

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.

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. approach lighting
2. approach lights.

Local lighting

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

1. interior lighting
2. parking lights
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 lights
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 146

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.

The vehicle can be unlocked at a distance via the service Volvo On Call.

If the keys have been locked in the vehicle or lost, the customer can call a Volvo Service Center. The vehicle's position is determined via Multimedia module (MMM) in the Telematic system and is sent to Volvo Service Center.

The customer states a code to the Service Center, which then sends a signal to the vehicle. This signal activates the central locking system for a time and on a given command the customer has to activate the switch in the tailgate. If this is done, the vehicle is unlocked.

The function is market dependent.

Scheme 147

Whether the automatic locking function is activated on delivery or not is market dependent. If this function is activated, the side doors lock when the speed exceeds 7 km/h (5 mph). All the doors must be closed, the engine running and the vehicle moving forward. The only exception is the tailgate/trunk lid which can be open. Information about whether the engine is running or not is transmitted by the engine control module (ECM) to the central electronic module (CEM). Indication about whether the engine is driving the car forwards is different in cars with automatic transmissions and manual transmissions. In vehicles with automatic transmissions, the position of the gear selector is received from the transmission control module (TCM). The gear selector must not be in the park (P) or neutral (N) position for automatic locking to function. In vehicles with manual transmissions, the brake control module (BCM) transmits information about vehicle speed to the central electronic module (CEM). The accelerator pedal (AP) must be partly pressed as well for automatic locking to take place.

The door can be unlocked again as normal with the central locking buttons.

Scheme 148

If the car is unlocked using the remote control or key and the side doors or trunk lid/tailgate are not opened within 2 minutes, the car will be locked automatically. Whether this function is activated on delivery or not depends on the market. This function can be activated later via VIDA (Volvo scan tool) or the infotainment control module (ICM).

HINT: Comfort Closing is not available in C70, only Comfort Opening.

The Comfort Closing function can be activated from the remote control. If the central electronic module (CEM) receives repeated lock signals, corresponding to a pressed lock button for approximately 2 seconds, it will lock all doors and close the windows and sunroof.

The corresponding function (Comfort Opening) is available when unlocking the vehicle. If the central electronic module (CEM) receives repeated unlock signals, corresponding to a pressed unlock button for approximately 3 seconds, it will unlock all doors and open all windows and the sunroof.

The tables below summarize the input and output signals to the units in the central locking system. The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication.

CENTRAL ELECTRONIC MODULE (CEM) (4/56)

DRIVER DOOR MODULE (DDM) (3/126)

PASSENGER DOOR MODULE (PDM) (3/127)

DRIVER INFORMATION MODULE (DIM) (5/1)

PHONE MODULE (PHM) (16/60) (OPTION)

CONVERTIBLE ROOF MODULE (CRM) (4/59)