CANSim4 is the successor to CANSim3, a widely used Restbus CAN simulator, which simulates the features of an entire car for the unit being tested.
CANSim4 is capable of simulating several different units of the VW concern at the same time. It has been developed according to the needs of our main customer – Škoda Auto a.s. The primary purpose of the device is to stimulate radios (MIB / ICAS3 units), but it can now be used for other units and purposes as well. The most common use of CANSim4 is in the testing area, but it can be also used in miscellaneous demonstrators.
The main advantages of CANSim4 are its small size, simple operation, comprehensive functionality and affordable price.
CANSim4 allows the user to control basic simulation signals with manual control elements, which eliminates the need for computer use. Such signals include, for example: speed, dimming level, and the position of the switch box. The current 4th generation supports the MQB, MQB37W and electrical MEB platforms.
The simulated signals are set in the default version as is described below. The user is able to change the function of the potentiometers and switches, as they are user programmable.
Simulated signals (potentiometers)
Speed (0 – 240 km/h)
RPM (0 – 8000 rpm)
Backlight (0 – 100 %)
Steering wheel angle (± 800°)
CNG, water temperature, clutch
Outside temperature, accelerator
State of charge (0–100 %) on i.ID for MEB
Simulated signals (switchers)
KL.S / KL.15
Backlight (day and night modes)
PDC & reverse
4x CAN interfaces (2 are CAN FD compatible)
2x LIN interfaces
2x HS switches (e.g. KL.15 and KL.S simulation)
1x LS switch
User programmable items - 6x potentiometers and 4x switches
User defined Rest-bus simulation
12x configuration DIP switches
LED indication of CAN and LIN communication for all ports
Network management NM high
Up to 16 different modes
Mini USB interface for firmware update and remote control
Possibility of customised firmware modification
Remote control over API
CANSim Studio (own application for configuration of matrix .dbc)
10 operating modes covering most applications
Modes for MQB, MQB37W and MEB platforms
Special modes for Infotainment test benches
Special mode for demonstration purposes
Special mode for the MEB test bench (an IgnSwExtV1 module is required)
Mode which generates a “No Crash” PWM signal (covering frequencies of 10 Hz and 100 Hz)
CANSim Studio is a desktop application which supports the CANSim4 device. It allows for the creation of user-defined simulations from a .dbc matrix.
Signals can be set to static or dynamic values and assigned to CANSim4 control elements.
CANSim Studio also allows updating firmware automatically from the update server.
1:1 cable harness
This cable harness connects all contacts from the main CANON 15 (female) connector with the same connector (male).
Octopus cable harness
This cable harness has all CANs from the CANON 15 (female) main connector divided into separate CANON 9 (male) connectors.
Full Octopus cable harness
This cable harness has all CANs, a power supply (KL.30, KL.31), LIN buses and PWM output from the main CANON 15 (female) connector. These are divided and connected to separate CANON 9 (male) connectors and banana connectors.
Additional equipment for the MQB37W and MEB tets benches ensures the correct functioning of the KL.15 (and KL.S for the former one) pin.
USB 2.0 mini cable
The USB 2.0 mini cable is used to connect the CANSim and a computer (e.g. for a FW upgrade).
External power supply
Power adapter for power supply.
Cable with banana connectors (on request) can be used for 12 V supply (for example, from a laboratory supply).
MQB, MQB37W, MEB
CAN physical layer
In accordance with ISO 11898
Built-in CAN terminators
120 Ω, switched by DIP switches on the rear panel
Max. output load of KL.15 and KL.S
8 V to 18 V
-20 °C to 70 °C while preventing condensation
Dimensions (W x D x H)
72 x 148 x 35 mm (including connectors and control elements)
The device complies with the VW80000 (2017-10) requirement for functional state A (all parameters OK) in operating mode II.c (maximum permissible load).
On request, we offer individual training and professional consultation with this product. For more information, please contact us.