Description Of Parameters

Description of parameters

Parameters, status

Note! Parameters that it is possible to read out is decided by the functions (STC/TRACS/DSTC) with which the vehicle is equipped.

Brake light switch
The value shows status of the brake light switch. The brake control module (BCM) obtains the values via CAN from the engine control module (ECM).
Active (pressed in) = Brake light switch activated.
Not activated = Brake light switch not activated.

Pedal pressure sensor status
The value shows status of the pedal pressure sensor. The brake control module (BCM) obtains the values via CAN from the engine control module (ECM).
Active (pressed in) = Pedal pressure sensor activated.
Not activated = Pedal pressure sensor not activated.

Engine running
The value shows the engine's status. The brake control module (BCM) obtains the value via CAN from the central electronic module (CEM).
Yes = Engine running.
No = Engine off.

Safety level
The value shows which safety level the brake control module (BCM) has at the time. The safety level changes depending on which safety functions that have been activated by VIDA in the control module. VIDA automatically selects the correct safety level depending on the diagnostic function. Activation of components/functions as well as calibration can only be performed at level 1 or 2.
Basic level = Normal position.
Level 1 = Safety level 1 activated.
Level 2 = Safety level 2 activated.

Control function ABS/EBD/TC/SC/AYC/EBA/RSC/TC-AWD

Note! Parameter SC/DSTC is only updated in vehicles with STC/DSTC.

The values show respective function's status.
Depending on the detected malfunction, driving, etc., status may vary.
AYC is shown as off until the steering wheel has been initiated and driven faster than 10 km/h.
Off = Function blocked.
Permitted = Function available.

STC/DSTC switch indication (STC)

Note! Only vehicles with SC/DSTC.

The value shows the status of the indicator diode in the STC/DSTC-switch. Requested status from the brake control module (BCM) that is sent on the CAN-network.
On = STC/DSTC indication activated.
Off = STC/DSTC indication not activated.

Steering direction right/left

Note! Only vehicles with DSTC.

The value shows which way the steering wheel is turned in relation to stored middle position. The brake control module (BCM) obtains the value via CAN from the steering wheel module (SWM).
Right = Steering wheel is turned to the right.
Left = Steering wheel is turned to the left.

Parameters, value

Voltage feed
The value shows brake control module (BCM) voltage feed.
Measurement range: 0-18 V

Battery voltage, central electronic module (CEM)
The value shows battery voltage at the central electronic module (CEM). The brake control module (BCM) obtains the value via CAN from the central electronic module (CEM).
Measurement range: 0-32 V.

Outdoor temperature
The value shows the outdoor temperature. The brake control module (BCM) obtains the value via CAN from the central electronic module (CEM).
Measurement range: -128 till +127 °C.

Driving distance
The value shows driven distance. The brake control module (BCM) obtains the value via CAN from the central electronic module (CEM).
Measurement range: 0 and up

Pedal position sensor's position
Value from pedal position sensor. The value shows the pedal position sensor's position.
Measurement range: 0-45 mm.

Pedal position sensor's speed
Value from pedal position sensor. The value shows the pedal position sensor's speed, that is, how fast the brake pedal is pressed down or let up. Positive values are shown when the pedal is pressed down, negative values are shown when the pedal is let up.
Measurement range: -200 till +200 mm/s.

Wheel speed
Value from wheel sensors. The brake control module (BCM) calculates wheel speed using respective wheel sensor.
Measurement range: 0.60-300 km/h.

Vehicle's reference speed
The value shows the vehicle's speed in km/h. Calculated value based on all wheel sensors' values.
Measurement range: 0.60-300 km/h.

Wheel acceleration
The value shows the wheels' acceleration or retardation. The brake control module (BCM) calculates the wheels' acceleration or retardation based on respective wheel sensor signal. The value may vary depending on the road surface. Uneven road surface may cause great variation.
Measurement range: 0-200 m/s2

Vehicle's acceleration, positive/negative
The value shows the vehicle's acceleration/retardation. The brake control module (BCM) calculates the vehicle's acceleration/retardation based on respective wheel sensor signal.
Measurement range: 0-200 m/s2.

Brake disc's temperature
The value shows temperature of the brake discs. The brake control module (BCM) calculates the temperature of the brake discs with regards to how long the traction function has controlled or ABS has been activated.
Measurement range: 0- 920 °C

Steering angle value

Note! Only vehicles with DSTC.

The value shows the position of the steering angle. The brake control module (BCM) obtains the value via CAN from the steering wheel module (SWM).
Measurement range: -720 till +720°/s.
Positive values = Left
Negative values = Right

Steering angle speed

Note! Only vehicles with DSTC.

The value shows the speed of the steering angle. The brake control module (BCM) obtains the value via CAN from the steering wheel module (SWM).
Measurement range: -1500 till +1500°/s.

Yaw angle signal (DSTC)

Note! Only vehicles with DSTC.

The value shows yaw angle speed, that is, how fast the vehicle is turned on level ground. The signal from the yaw speed sensor, which is built in to the stability sensor (BSC), give s the brake control module (BCM) information about the vehicle's yaw angle speed (steering direction) in °/s. Positive value indicate steering direction to the left, negative value indicates steering direction to the right.
Measurement range: -80 till +80°/s.

Hint: The value can be affected by sudden lateral movement of the vehicle's rear end or front end.

Lateral accelerometer, signal

Note! Only vehicles with DSTC.

The value shows the lateral accelerometer's signal, that is, the vehicle's lateral inclination. The signal from the lateral accelerometer, which is built in to the stability sensor(BSC), give s the brake control module (BCM) information about the vehicle's lateral acceleration. Left turn gives a roll to the right, which gives a positive value. A right turn gives a roll to the left, which gives a negative value.
Measurement range: -20 to +20 m/s2

Hint: The value can be affected by changing the vehicle's lateral inclination, e.g., by raising or lowering the vehicle's right or left side.

Brake pressure sensor A and B

Note! Only vehicles with DSTC.

The value shows the brake pressure in the hydraulic unit. The signal from the brake pressure sensors gives the brake control module (BCM) information about the pressure in the brake system.
Measurement range: 0-300 bar.

Accelerometer, signal

Note! Only vehicles with DSTC and AWD.

The value shows the accelerometer's signal, that is, the vehicle's longitudinal inclination. The signal from the accelerometer, which is built in to the stability sensor (BSC), give s the brake control module (BCM) information about the vehicle's longitudinal acceleration. Positive value indicates acceleration, that is, the front of the vehicle is raised. Negative value indicates retardation, that is, the front of the vehicle is lowered.
Measurement range: -20 till +20 m/s2

Hint: The value can be affected by changing the vehicle's longitudinal inclination, e.g., by raising or lowering the vehicle's front or rear end.

Roll angle, signal

Note! Only vehicles with DSTC and AWD.

The value shows the roll angle sensor's signal, that is, the vehicle's lateral inclination. The signal from the roll angle sensor, which is built in to the stability sensor (BSC), give s the brake control module (BCM) information about the vehicle's roll angle.
Measurement range: 0-90°/s.

Hint: The value can be affected by changing the vehicle's lateral inclination.

Offset values (only vehicles with DSTC)

Hint: The offset value is an adaptive correction value that indicates the individual deviation for the sensor. The brake control module (BCM) uses the value to always have the correct start value at start-up of the system for DSTC. If the normal value has been changed during an operating cycle, the value is stored after ignition off in the brake control module (BCM) EEPROM-memory and uploaded to the working memory at ignition on.
The offset values can also be changed shortly after the ignition has been turned off.

Steering angle sensor, stored offset value
The value stored in the brake control module (BCM) EEPROM-memory.
Measurement range: -20 till +20°/s

Yaw angle sensor, stored offset value
Current value for this operating cycle. Diagnostic trouble code is generated and DSTC is shut off at ±10°/s
Measurement range: -25 till +25°/s

Lateral accelerometer, stored offset value
The value stored in the brake control module (BCM) EEPROM-memory.
Measurement range: -10 to +10 m/s2

Brake pressure sensor A and B, stored offset value
The value stored in the brake control module (BCM) EEPROM-memory.
Measurement range: -20 till +20 bar

Accelerometer, stored offset value (DSTC AWD)
The value stored in the brake control module (BCM) EEPROM-memory.
Measurement range: -10 to +10 m/s2