Scheme 2
The reverse warning system consists of a control module and four sensors. The control module is installed in the cargo compartment of the car behind the right side panel.
The reverse warning system's control module is directly connected to control module accessory electronics (AEM). Communication between the reverse warning system's control module and accessory electronic module (AEM) consists of a 0V/12V pulsating signal, which comes at more frequent intervals in case of reduced distance to an object.
The reverse warning system's control module is supplied with voltage and connected to ground via the accessory electronic module (AEM).
The four sensors are installed in the rear bumper of the car. The sensors function as transmitters and receivers.
The sensors transmit ultrasound which it then measures time by.
The signal is sent to the accessory electronic module (AEM) as a digital pulse.
There are two versions of the reverse warning system (accessory)
- One for early versions, which is not connected to the car's CAN-net. This version does not use accessory electronic module (AEM).
- One for late versions, which is connected to the car's CAN-net via accessory electronic module (AEM).
The difference between the early and late versions can be seen from the chassis number in the chart below.
| Model | Chassis number | |
|---|---|---|
| Early version | Later version | |
| S60 | All | |
| S80 | 161195 | 161196 |
| V70 | 045075 (1) | 045076- (1) |
| 047529 (2) | 047530- (2) | |
| V70XC | 003972 | 003973 |
(1) applies to cars manufactured in production plant 1.
(2) applies to cars manufactured in production plant 2.
Information regarding which production plant a car is manufactured in can be found in the VIN number. The seventh position from the right in the VIN specifies the production plant.
Control module audio (AUM) is required for the reverse warning system to function.
When post-installing the reverse warning system the car must be configured using new software which is carried out via VIDA.
There are diagnostics for the reverse warning system.
Scheme 3
A timer control function can be connected to the electrical parking heater which is controlled via the accessory electronic module (AEM).
The system consists of
- A relay for the electrical parking heater
- Wiring between the relay and accessory electronic module (AEM).
The relay is mounted on the engine block heater and controls the electrical parking heater and relay passenger compartment socket.
The relay acts as a switch and is supplied with power and controlled via the wiring from the accessory electronic module (AEM).
The relay is connected to the ground terminal in the engine compartment.
When post-installing the timer start system for the electrical parking heater the car must be configured using new software which is carried out via VIDA.
There are diagnostics for the relay/control signal.
Reading off the control module identification
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
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N
- start address CAN configuration.
VIDA identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N.
Description of parameters
This parameter description contain both a description for Differential electronic module (DEM) generation 3 and for generation 4. Generation 3 is presented first, and then generation 4.
The control module can be identified by reading off a code from the control module memory.
The code contains information about the control module's
- hardware P/N (control modules without software)
- hardware serial number (control modules without software)
- software P/N
- P/N diagnostic software.
Description of function of the operating status of the heater
The heater can have a number of different statuses. Each status and what should occur in it is described below.
| Operating status | Description |
|---|---|
| 0: The heater has not started | Initialization of the heater control module (combustion preheater module) |
| 1: The heater starts | Heater self test. The glow plug and the water pump is activated. The combustion fan then starts at low speed to ventilate the heater. This is to cool the glow plug so that the flame sensor does not detect light from the glow plug as a flame. The control module pulses the supply to the glow plug (pulse width modulation (PWM) signal). The glow plug is sufficiently warm after approximately 45 seconds to ignite the fuel. This whole process takes approximately 1 minute. |
| 2: The heater starts and the fuel pump is active | The fuel pump starts and the speed of the combustion fan increases. The control module waits for a flame. The blower fan will now be running. This procedure takes a maximum of one minute. |
| 3: The heater runs | A flame has been detected by the flame sensor and heats the heater. When the car is being driven the heater is stopped if the engine coolant temperature (ECT) exceeds a certain level. The heater is stopped by cutting the fuel supply. The combustion fan ventilates the heater when the flame has gone out. When the temperature falls below a certain level, the heater starts again. This means that the heater cycles between 2 temperature ranges. |
| 4: The heater stops | The fuel pump stops, the flame is extinguished and the heater is ventilated. |
| 5: The heater waits | Waiting for the engine coolant temperature (ECT) to fall low enough for the heater to start again. |
| 6: The heater has stopped | The heater only has this status if a fault has occurred. |
| 7: The flame is extinguished | The flame has gone out while the car is being driven. |
| 8: Residual heat | If, when the outside temperature is low, the driver is in the car and turns on the heater, the water pump starts in order to heat the passenger compartment. |
| 9: Fuel pump activated | Used in production. |
| 10: Activating the fuel pump | Single pulses to the fuel pump are used to prevent the fuel pump sticking. |
Reading the control unit identification
VIDA identifies control units by reading the number of codes from the control unit memory.
The codes contain information on the control unit
- hardware component number (control unit without software)
- hardware series number (control unit without software)
- software component number
- diagnostic software component number
Scheme 4
- Radio antenna. Integrated in the rear windshield on the S60/S80, in the left-hand side window on the V70/V70XC
- Antenna amplifier FM/AM, located in the D-post
- Loudspeakers, positioned in the parcel shelf (D-post V70/V70XC)
- Keypad in the steering wheel for audio and telephone
- Center loudspeaker with display for cars with the Road Traffic Information module (RTI)
- Center loudspeaker for cars without a Road Traffic Information Module (RTI)
- Audio module (AUM) - Sound unit audio
- Door-mounted loudspeakers front (treble)
- Door-mounted loudspeakers front (bass/mid-range)
- External amplifier, positioned under the right-hand front seat
- Rear door-mounted loudspeakers
- Antenna amplifier for the bumper antenna
- FM antenna integrated in the bumper
- CD changer audio.
Overview
See Overview .
System overview
See System overview
See Design
See System overview
See Design
See System overview
See Design
See System overview
Scheme 5
The control unit has built-in diagnostics, Volvo Diagnostics, which continually monitor the system and the input and output signals.
VIDA identifies control units by reading the number of codes from the control unit memory.
The codes contain information on the control unit as follows
- hardware component number (control unit without software)
- hardware series number (control unit without software)
- software component number
- diagnostic software component number
Scheme 6
The value indicates the stop (brake) warning lamp status.
OFF: The warning lamp is out
ON(cont): The warning lamp is lit
ON(audible): The warning lamp flashes
Scheme 7
The value indicates ABS warning lamp status.
OFF: The warning lamp is out
ON(cont): The warning lamp is lit
ON(audible): The warning lamp flashes
Scheme 8
The value indicates the spin warning lamp status.
OFF: The warning lamp is out
ON(cont): The warning lamp is lit
ON(audible): The warning lamp flashes
Scheme 9
The value indicates the stop (brake) lamp switch status.
OFF: The stop (brake) lamp switch is not activated
ON: The stop (brake) lamp switch is activated
VIDA 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
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N (part of the software).
VIDA identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N.
VIDA identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N.
The heater can have a number of different statuses. Each status and what should occur in it is described below.
| Operating status | Description |
|---|---|
| 0: The heater has not started | Initialization of the combustion preheater module (CPM). |
| 1: The heater starts | Heater self test. The glow plug and the water pump are activated. The combustion fan then starts at low speed to ventilate the heater. This is to cool the glow plug so that the flame sensor does not detect light from the glow plug as a flame. The control module pulses the supply to the glow plug (pulse width modulation (PWM) signal). The glow plug is sufficiently warm to ignite the fuel after approximately 45 seconds. This whole process takes approximately 1 minute. |
| 2: The heater starts and the fuel pump is active | The fuel pump starts and the speed of the combustion fan increases. The control module waits for a flame. The blower fan will now be running. Maximum time 1 minute. |
| 3: The heater runs | A flame has been detected by the flame sensor and heats the heater. When the car is being driven the heater is stopped if the engine coolant temperature (ECT) exceeds a certain level. The heater is stopped by cutting the fuel supply. The combustion fan ventilates the heater when the flame has gone out. When the temperature falls below a certain level, the heater starts again. This means that the heater cycles between 2 temperature ranges. |
| 4: The heater stops | The fuel pump stops, the flame is extinguished and the heater is ventilated. |
| 5: The heater waits | Waiting for the engine coolant temperature (ECT) to fall low enough for the heater to start again. |
| 6: The heater has stopped | The heater only has this status if a fault has occurred. |
| 7: The flame is extinguished | The flame has gone out while the car is being driven. |
| 8: Residual heat | If, when the outside temperature is low, the driver is in the car and turns on the heater, the water pump starts in order to heat the passenger compartment. |
| 9: Fuel pump activated | Used in production. |
| 10: Activating the fuel pump | Single pulses to the fuel pump are used to prevent the fuel pump sticking. |
The vehicle configuration can be read off to check what functions the car is equipped with. The following affect the function of the heater
- Parking and additional heater function or additional heater function only (diesel engines)
- Parking heater or not (gasoline engines)
- Residual heater or not
- Electrical engine block heater (time controlled via the driver information module (DIM)) or not.
Scheme 10
The driver sets the desired departure time using one of the two timer functions in the display on the driver information module (DIM) (5/1). The time is programmed by twisting the ring on the control stalk and by pressing the "reset" button for the desired time (timer 1, timer 2 or direct start). Direct start can also be used to start the heater.
The central electronic module (CEM) (4/56) receives data about when the driver wants to drive from the control stalk module (steering wheel module (SWM)) (3/254) and the driver information module (DIM).
The central electronic module (CEM) calculates when the heater needs to start so that it is warm enough in relation to the outside temperature. Information about temperature is obtained from the outside temperature sensor in the right-hand door mirror. This sensor is connected to the driver door module (DDM) or passenger door module (PDM).
The central electronic module (CEM) calculates when the heater needs to start
- The heater calculates when start is required (15-50 minutes before the intended departure at medium low temperatures between -10 °C and +15 °C)
- This procedure takes a maximum of one minute. 60 minutes at temperatures below -10 °C
- This running time of the heater is a minimum of 15 minutes before the planned departure. (Warm temperatures between +15 °C and +25 °C).
When the heater is started directly using the control stalk it runs until it is shut off or for a maximum of 60 minutes. The heater is on for 10 minutes after the set time to allow for the driver getting to the car late.
A text message is displayed in the driver information module (DIM) when the heater is running.
Remote start of parking heater (Applies from and incl. structure week 201020)
With remote start of parking heater it is possible to set timers for the parking heater as well as direct start of the parking heater via a computer with internet connection or via mobile telephone. Only applies to vehicles with Phone module (PHM).
Scheme 11
The desired departure time is set using the steering wheel module (SWM) (3/254).
The central electronic module (CEM) (4/56) calculates when the heater needs to start. The heater starts 2 hours and 45 minutes before the set departure time, irrespective of the temperature. A text message is displayed in the driver information module (DIM) (5/1) when the electrical heater is running.
The accessory electronic module (AEM) (4/78) electrically controls when the heater should be switched on and off. The engine block heater must be connected to a wall socket. The accessory electronic module (AEM) activates a relay which closes the switch for a heater element.
Scheme 12
This function can be ordered as an accessory. See Reading off vehicle configuration data to check whether the car has a residual heater.
The function is activated in the driver information module (DIM) (5/1) using the control stalk (compare to the parking heater). Information about activation is sent to the central electronic module (CEM) (4/56) and climate control module (CCM) (3/112). The blower fan and damper settings are set by the climate control module (CCM). The central electronic module (CEM) transmits data to the combustion preheater module (CPM) (4/7) instructing it to activate the water pump.
When the residual heater is activated it will operate as long as the coolant temperature is above 30 °C or for a maximum of 20 minutes or until the function is switched off.
This function is used when the coolant is already warm. The coolant pump is started thereby circulating the coolant. The heat is distributed from the coolant to the passenger compartment unit in the climate control unit and on to the passenger compartment.
When the residual heater is running, the passenger compartment is heated by the climate control module (CCM) controlling the fan and damper according to a customer parameter (Applies only to electronic climate control (ECC)). This parameter is used to set the distribution between the defroster and the floor. The normal setting is 30% defroster and 70% floor.
Scheme 13
The additional heater is standard in cars with diesel engines (certain markets). This function is used for cars in cold markets to provide extra heat to the climate control module. The heater functions in the same way as the parking heater although the start conditions are different. This is controlled by the central electronic module (CEM) (4/56). There is no physical difference between the parking heater and the additional heater. The difference between the functions is in the software.
Description of programmable parameters, customer adaptation
Certain parameters for the climate control module (CCM) can be read off and programmed using this function. The purpose of this programming is to
- read the programmed parameters before replacing the control module. This is so the same parameters can be entered into the new control module
- to adapt the function of the control module for the equipment levels of the car (passenger compartment ventilation filter, parking heater)
- to adapt the function of the control module to the requirements of the driver.
Passenger compartment ventilation filter compensation, status
Indicates the status for the activation of passenger compartment ventilation filter compensation.
OFF = Compensation not active
ON = Compensation active (preset)
Blower fan run-on, status
Provides the status for activation of the blower fan run-on. The run-on dries the evaporator and prevents bad odors which may otherwise result from residual moisture in the system.
OFF = Run-on inactive
ON = Run-on active (preset)
Blower fan speed, value
Allows the speed to be modified for the blower fan when the climate control system is in AUTO mode. Modifying the parameters means that the climate control system either blows more or less air than the preprogrammed value, to correspond to the request of the driver.
Gives the voltage value for adaptation of the blower fan speed.
1.0 - +1.0 V (0 V preset)
Setting for air distribution for the floor / defroster residual heat, value
Indicates the setting of the air distribution between the floor and defroster.
10/90 - 90/10% (70/30% preset)
Setting for air distribution for the floor / defroster parking heater, value
Indicates the setting of the air distribution between the floor and defroster.
10/90 - 90/10% (70/30% preset)
Passenger compartment temperature, value
The passenger compartment temperature in relation to the passenger compartment temperature switch position can be adjusted by programming a compensation value.
The passenger compartment temperature can be raised or lowered by a maximum of 2 °C (4 °F) from the normal value. This allows the temperature to be adjusted in accordance with the driver's wishes.
0 = -1.0 °C/-2.0 °F
1 = -0.5 °C/-1.0 °F
2 = 0.0 °C / 0.0 °F (default value)
3 = +0.5 °C/+1.0 °F
4 = +1.0 °C/+2.0 °F
Description of components/functions activation
Self-adjustment of damper motors
This function can be used to carry out self adjustment of the limit positions for all the damper motors. Self adjustment must be carried out if, after checks, one or more of the damper motors do not reach their limit positions or the climate control module (CCM) is replaced. There are a number of possible reasons for a damper motor not reaching its end position. For example, the motor or the damper has been turned manually, the voltage supply may have been cut, or a component has been replaced.
The result from reading off the status for buttons on the dashboard environment panel in order from left to right.