Description of Parameters, CEM

Description of parameters

Note! Description of parameters for CEM generation 2 (structure week >= 09w46) se: Description of parameters Description of Parameters

Steering wheel module (SWM)

Cruise control, resume previous selected speed
Reading off if the central electronic module (CEM) interprets the switch as being activated or not activated.

Cruise control, decreased speed
Reading off if the central electronic module (CEM) interprets the switch as being activated or not activated.

Cruise control, increased speed
Reading off if the central electronic module (CEM) interprets the switch as being activated or not activated.

Cruise control, rocker switch
Reading off if the central electronic module (CEM) interprets the switch as being activated or not activated.

Rain sensor switch
Reading off if the central electronic module (CEM) interprets the switch as being activated or not activated.

Immobilizer

Steering wheel lock, power supply
Indicates if the power supply to the steering wheel lock is on or off.
The power supply is only active during the locking cycle (approximately 1 second).

The signals from the start control module (SCU) to the central electronic module (CEM)
Indicates signals transmitted via LIN from the start control module (SCU) to the central electronic module (CEM).
The values that may be shown are:
- Switch 1 at start button (LIN-signal). Not activated/Activated
- Switch 2 at start button (LIN-signal). Not activated/Activated
-Switch 1 at start button, directly connected. Not activated/Activated (Switch 1 is both directly connected and connected VIA LIN-signal.)
- Switch for indicating key in ignition. Not activated/Activated
- Switch for activating key ejection. Not activated/Activated
Contact breaker activated only when the key is docked and pressed in at removal.
- Locking key. Not activated/Activated

Power supply mode
Shows present current supply mode. The current supply mode affects which functions and systems are active or are possible to activate.
The values that may be shown are:
- - Key removed
This mode is reached 1 minute after the key has been removed from the ignition. The functions in the car that still are supplied with voltage are, e.g., alarm system and the system for keyless vehicle.
- - Key recently removed
This mode is reached directly after the key has been removed from the ignition, and lasts for 1 minute. Functions such as Key warning and communication services for, e.g., phone module are usable this extra minute.
- - Key approved
The key is in the ignition, position 0, and the key is approved according to the ID-list stored in the Central electronic module (CEM).
- - Ignition off after Accessory mode
Key in position 0 after it has been in position 1. Synchronization of activities related to internal work memories takes place.
- - Accessory position
Key in position 1. Infotainment functions and telematic functions are fully available until the units sense low voltage from the battery. Then they go to energy save mode.
- - Accessory mode after Ignition on
Key in position 1 after the engine has been running. Normal accessory mode plus the functions that are related to the engine being shut off.
- - Ignition on
Key in position 2.
- - Running
Key in position 2 and engine running.
- - Start attempt
Key in position 3. Starter motor tries to start the engine.

Alcolock, counter by-pass (2008-)
The Alcolock has an internal counter that stores the number of times that the system has been by-passed. When the counter reaches the maximum value of 255, it will not reset automatically and will not increase with further by-passes. Resetting is performed using VIDA/vehicle communication.

Alcolock, events (2008-)
Five parameters that show the history of the five last text messages that have appeared in the combined instrument panel.

Alcolock, start inhibitor events (2008-)
Five parameters that show the five last results from the Alcolock.
The values that may be shown are:
- Start permitted
- Start not permitted

Global time events (2008-)
Five parameters that show global time during the five last occasions that the Alcolock was used.

Central locking

Number of programmed remote keys
Only applies to vehicles without keyless entry (KVM).
Indicates the number of remote keys that are programmed in the vehicle.

Status, child-proof lock
Indicates the status of the child-proof lock or if any fault has occurred when last locking or unlocking.
The values that may be shown are:
- Not activated
- Activated
- Fault when locking
- Fault when unlocking

Command history from remote key
Only applies to vehicles without keyless entry (KVM).
Indicates the values for the five last commands from the remote key.
Value displayed for each occurrence:
- Remote key ID.
- The button which has been pressed.
- Status of the remote key's battery voltage: Full or low.
- Global time in minutes.

Status for door switches
Indicates the status of the switches at the doors and hatches, which indicate open doors or hatches.
Status of all contact breakers can be open or closed.

Status of power supply to lock motors
Indicates if the power supply to the lock motors is active or not.
Supply is only active during the time that locking or unlocking is carried out, i.e. for approximately 0.5 seconds.

Power supply to lock motor for fuel tank filler cap
The value can be activated or not activated.
Supply is only activated during locking or unlocking

External lighting

Stop (brake) lamps
Reading off if the stop lamp is on or off.

High level stop lamp
Reading off if the high-level stop lamp is on or off.

Brake lamp switch
Reading off if the stop lamp is active or not active.

Back-up (reversing) lamps
Reading off if the back-up (reversing) lamp is on or off.

Left turn signal lamp
Reading off if the left-hand turn signal lamps are on or off.

Right turn signal lamp
Reading off if the right-hand turn signal lamps are on or off.

Left low beam
Reading off if the left-hand low beam is on or off.

Right low beam
Reading off if the right-hand low beam is on or off.

License plate lighting
Reading off if the license plate lighting is on or off.

High beam
Reading off if the high beam is on or off.

Parking lamps, left front
Reading off if the lamp is on or off.

Parking lamps left-hand rear
Reading off if the lamp is on or off.

Parking lamps, right front
Reading off if the lamp is on or off.

Rear right parking lamp
Reading off if the lamp is on or off.

Other information

Fuel level
Presents current fuel level on the pump side as a value between 0-5 Volt.

Fuel level, ejector side
Presents current fuel level on the ejector side as a value between 0-5 Volt.
Applies only to cars with saddle tank.

The windshield washer fluid level
Displays the status of the windshield washer fluid level.
Above 1 liter = there is more than 1 liter of washer fluid left in the reservoir.
Below 1 liter = there is less than 1 liter of washer fluid left in the reservoir.

Power supply to pedals
Indicates the status of the power supply to sensors at the accelerator pedal (AP), brake pedal and clutch pedal.
The value can be activated or not activated.

Signals from the steering wheel module (SWM) to the central electronic module (CEM), via LIN.
Indicates the command transmitted via LIN during activation of any of the functions on the steering wheel module (SWM).

Signals from the light switch module (LSM) to the central electronic module (CEM), via LIN.
Indicates the command transmitted via LIN during activation of any of the functions on the light switch module (LSM).

Hazard warning signal flashers, status
Displays the status of the hazard warning signal flasher switch.
Activated = The switch for the hazard warning signal flashers is activated.
Not activated = The switch for the hazard warning signal flashers is not activated.

Twilight sensor, voltage, value
Measurement range 0.25 to 4.90 Volts.
Shows the current light intensity.
Increased light intensity reduces the voltage over the photodiode.

Solar sensor, voltage, value
Measurement range 0.15 to 4.85 Volts.
Shows the current light intensity.
Increased light intensity reduces the voltage over the photodiode.
From and including structure week 200746, the sun sensor has been replaced with twin sensors.

Pedal position sensor

Clutch pedal position, external
Reading off the clutch pedal's position. Measurement range 0-100 %.
Applies only to vehicles with:
- Manual transmission.
- Electric parking brake.
Vehicles with this sensor do not have Clutch pedal switch, internal, 25%.

Clutch pedal switch, internal, 75%.
Reading off if the clutch pedal is depressed 75% or more.
Only applies to cars with manual transmission.

Clutch pedal switch, internal, 25%
Read out if the clutch pedal is pressed down 25% or more.
Applies only to vehicles with:
- Manual transmission.
- Mechanical parking brake.
- 4 cylinder engine, 2.0 liter with 4 valves/cylinder
Vehicles with this sensor do not have Clutch pedal position sensor, external.

Brake pedal switch
Reading off if the brake pedal is active or not active.

Accelerator pedal (AP) position sensor
Reading off the accelerator pedal position. Measurement range 0-100 %.

Relay

Relay ignition on, engine compartment
Reading off whether relay ignition on for engine compartment is active or not active.

Relay ignition on, luggage compartment
Read out if relay ignition on for luggage compartment is active or not active.

Comfort relay
Reading off if the comfort relay is active or not active.

Relay, interior lighting
Reading off whether relay for interior lighting is active or not active.

Relay washer motor, front
Reading off if relay washer motor front is active or not active.