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Relay, radiator fan castor
Relay, radiator fan castor
Sensor, wash water level
Sensor, wash water level
Headlight Motor
Headlight Motor
Temperature Switch, radiator fan
Temperature Switch, radiator fan
Fuel Pressure Regulator
Fuel Pressure Regulator
Fuel Level Sensor
Fuel Level Sensor
Control Unit, glow plug system
Control Unit, glow plug system
Control Unit, central locking system
Control Unit, central locking system
Alternator Regulator
Alternator Regulator
Switch, hazard light
Switch, hazard light
Starter Solenoid
Starter Solenoid
Control Valve, compressor
Control Valve, compressor
Relay, air conditioning
Relay, air conditioning
Exhaust Pressure Sensor
Exhaust Pressure Sensor
Pressure Switch
Pressure Switch
Sensor, intake manifold pressure
Sensor, intake manifold pressure
Oil Pressure Switch
Oil Pressure Switch
Sensor, fuel temperature
Sensor, fuel temperature
Indicator Relay
Indicator Relay
Camshaft Sensor
Camshaft Sensor
Pressure Converter
Pressure Converter
Relay, ABS
Relay, ABS
Coolant Temperature Sensor
Coolant Temperature Sensor
Sensor, longitudinal- / lateral acceleration
Sensor, longitudinal- / lateral acceleration
Relay, wipe- / wash interval
Relay, wipe- / wash interval
Relay, rear window heater
Relay, rear window heater
Parking Sensors
Parking Sensors
Water Sensor, fuel system
Water Sensor, fuel system
Brake Pad Wear Sensor
Brake Pad Wear Sensor
Reverse Light Switch
Reverse Light Switch
Throttle Position Sensor
Throttle Position Sensor
Lambda Sensor
Lambda Sensor
Fuel Pump Relay
Fuel Pump Relay
Sensor Speed
Sensor Speed
Control Unit, heating / ventilation
Control Unit, heating / ventilation
Window Switch
Window Switch
Control Unit, lights
Control Unit, lights
Control Unit, engine management
Control Unit, engine management
Control Unit, air conditioning
Control Unit, air conditioning
Knock Sensor
Knock Sensor
Control Unit, automatic transmission
Control Unit, automatic transmission
Oil Temperature Sensor
Oil Temperature Sensor
Relay, central locking system
Relay, central locking system
Sensor, engine oil level
Sensor, engine oil level
Sensor, exterior temperature
Sensor, exterior temperature
Crankshaft Sensor
Crankshaft Sensor
Idle Control Valve, air supply
Idle Control Valve, air supply
Control Valve, air intake
Control Valve, air intake
Tyre Pressure Control System
Tyre Pressure Control System
Sensor, exhaust gas temperature
Sensor, exhaust gas temperature
Blower Motor Resistor
Blower Motor Resistor
Overvoltage Protection Relay, ABS
Overvoltage Protection Relay, ABS
Steering Angle Sensor
Steering Angle Sensor
Sensor, pedal travel
Sensor, pedal travel
Brake Light Switch
Brake Light Switch
ABS Ring
ABS Ring
Control Unit, electric fan (engine cooling)
Control Unit, electric fan (engine cooling)
Relay, horn
Relay, horn
Window Regulator
Window Regulator
Relay, starter
Relay, starter
Steering Rack Oil Pressure Switch
Steering Rack Oil Pressure Switch
Air Quality Sensor
Air Quality Sensor
Fuel Cut-off, injection system
Fuel Cut-off, injection system
Sensor, Xenon light (headlight range adjustment)
Sensor, Xenon light (headlight range adjustment)
Sensor, accelerator position
Sensor, accelerator position
Sender Unit, interior temperature
Sender Unit, interior temperature
Mass Air Flow Sensor
Mass Air Flow Sensor
Multifunctional Relay
Multifunctional Relay
Temperature Switch, cold start system
Temperature Switch, cold start system
Temperature Sensor
Temperature Sensor
ABS Sensor
ABS Sensor

Sensors, Relays, Control units car parts - all important information about operating method, mounting, diagnostics and service life

Information system of a vehicle is an electronic digital computer the function of which is to increase the level of comfort while being in a car. This system combines several functions and provides possibility of getting information on location, navigation, access to the Internet, calls, running diagnostics on different vehicle systems, motion checkout, a media player, parking aid.

Types of information system of vehicles
  • Universal. Have a wide range of possibilities.
  • Sector-specific. Carry out a limited number of functions:
    • Diagnostic;
    • Control systems;
    • Communication systems;
    • Route control systems.
Structure of the information system of a car
  • Main liquid crystal display with a diagonal of 7” - 15”.
  • Sub displays in the instrument cluster (may vary depending on the vehicle model):
    • Oil pressure display;
    • Boost display;
    • Gear reduction display;
    • Oil and cooling liquid temperature display.
  • Diagnostic sensors and components:
    • Voltage meter;
    • Ampere meter;
    • Fuel injection sensor;
    • Engine operation analyzer;
    • Analyzer of route data (fuel volume in the tank, distance covered, fuel consumption, traffic forecast).
  • Alarm annunciator.
  • Indicating gauge.
  • Software.
Tips on exploitation of the car information system
  1. When using any type of system it is essential to first understand the basic graphic symbols.
  2. You should not overload the system with the files not concerning driving process or route. It will allow to analyze sensor readings faster and avoid possible mistakes.
  3. Estimated traffic forecast on the remaining amount of fuel is calculated taking into account the contingency reserve. So you better refill your car if the fuel-level indicator is near 0.
  4. Master or keep handy the computer codes chart. The system displays as two-digit numbers minor failures which do not require instant solving. There may be up to a hundred codes in the system.
Failures of information devices and communication systems
  • Disruption of the measuring sensors;
  • Breakdown of computer’s central processing unit, internal memory, non-volatile memory;
  • Display’s failures or mechanical damage;
  • Software breakdown.
Signs of information system parts’ failure
  • Indication of car components failure with no other signs of the breakdown;
  • Too long analysis of sensor value;
  • Frequent rebooting the system under load;
  • Incorrect values of route data.
Causes of information devices failure
  • Tear wear or damage of sensors;
  • Break or short circuit of electrical contact;
  • Damage to the system case, circuits and boards;
  • Ingress of moisture on system components;
  • Using low quality sensors or improper electronic system components;
  • Impact of high temperature swings;
  • Detachment or disconnection of circuit boards contacts, circuits and cables.
Repair of information and communication system of the car

Information system problems can be divided in 2 types: sensors failure or breakdown of the central computer. You can change the sensors in a service center. According to computer readings you can easily spot the failure of a certain sensor.

Breakdown of the main system is a more serious matter. In case of a software breakdown it is necessary to install a new operation system and customize analysis of the system information again. In case of board or circuit damage it is necessary to resolder the chips or replace it. It is essential that the new part is the full analog of the previous one. Otherwise no one can guarantee correct work of the whole system.

For analyzing the trip computer operation the service center runs computerized diagnostics. There are no definite instructions on the frequency of it. It is only recommended to remove the casing and dust the computer once in 1-2 years. You better leave it to professionals too in order not to damage the contacts.

Advantages of working with us

Searching for parts and sensors of information and communication system will not take long on our website. Specify the type of your system and order missing parts right away. We offer attractive prices, a convenient parts catalog and free delivery. All the items have warranty. Ask our support team employees any questions and place an order. Best cheap parts are only here!

Top 10 of best sellers from the Sensors, Relays, Control units section
Recommended spare parts from the Sensors, Relays, Control units section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.
  • BERU Control Unit, glow plug system
    Number of article: GSE102
    In stock
    -20%
    £ 65,67
    £ 52,54
    incl. 20% VAT
    • Number of Cylinders: 6
    • Voltage [V]: 12
    • Condition: New
  • A.B.S. Warning Contact, brake pad wear
    Number of article: 39590
    In stock
    -20%
    £ 2,37
    £ 1,90
    incl. 20% VAT
    • Warning Contact Length [mm]: 95
    • Number of wear indicators [per axle]: 1, 2
    • Weight [kg]: 0,02
    • Condition: New
  • BREMBO Warning Contact, brake pad wear
    Number of article: A 00 473
    In stock
    -20%
    £ 12,47
    £ 9,98
    incl. 20% VAT
    • Brake Type: Disc Brake
    • Number of wear indicators [per axle]: 1
    • Length [mm]: 675
    • Condition: New
  • ATE Warning Contact, brake pad wear
    Number of article: 24.8190-0410.2
    In stock
    -20%
    £ 7,24
    £ 5,79
    incl. 20% VAT
    • Warning Contact Length [mm]: 97,5
    • Brake Type: Disc Brake
    • Condition: New
  • BOSCH Warning Contact, brake pad wear
    Number of article: 1 987 473 070
    In stock
    -20%
    £ 4,63
    £ 3,70
    incl. 20% VAT
    • Brake Type: Disc Brake
    • Length [mm]: 95
    • Condition: New
  • TRISCAN Sensor Ring, ABS
    Number of article: 8540 10403
    In stock
    -20%
    £ 8,86
    £ 7,09
    incl. 20% VAT
    • Inner diameter [mm]: 79
    • Width [mm]: 13,1
    • Number of Teeth, ABS ring: 48
    • Outer diameter [mm]: 83
    • Condition: New
  • FEBI BILSTEIN Sensor, coolant temperature
    Number of article: 32510
    In stock
    -20%
    £ 9,81
    £ 7,85
    incl. 20% VAT
    • Number of connectors: 4
    • Weight [kg]: 0,038
    • Condition: New
  • MOBILETRON Wheel Sensor, tyre pressure control system
    Number of article: TX-P004
    In stock
    -20%
    £ 36,82
    £ 29,46
    incl. 20% VAT
    • Frequency Range [MHz]: 433
    • Condition: New
  • BERU Control Unit, glow plug system
    Number of article: GSE114
    In stock
    -20%
    £ 94,77
    £ 75,82
    incl. 20% VAT
    • Number of Cylinders: 6
    • Voltage [V]: 12
    • Glow Plug Design: Metal glow plug
    • Condition: New
  • FEBI BILSTEIN Sliding Shoe, window regulator
    Number of article: 23749
    In stock
    -20%
    £ 2,47
    £ 1,98
    incl. 20% VAT
    • Colour: White
    • Fitting Position: Front, Rear
    • Weight [kg]: 0,010
    • Condition: New