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Switches & Sensors

Articles

5 Wire Lambda Sensor Technology

Since the introduction of Euro 4 emissions standards*, the 5-wire Lambda sensor has become an essential comp...
ABS Sensor Technology

The anti-lock braking system is a safety-critical technology which prevents the wheels from locking and allo...
Air Mass Sensor

  Determines air mass delivered to the engine which allows the ECU to adapt the fuel injection acc...
Air Mass Sensor Function

Installed in every car for more than a decade, the air mass sensor is an essential component in the air supp...
Air Mass Sensor Troubleshooting

They have been installed in many motor cars for more than a decade: the air mass sensor has become...
Air Temperature Sensor

  Monitors the temperature of the air flowing into the engine The sensor can also be used to m...
Anti-lock Braking System (ABS) Sensor

Troubleshooting   Symptoms: ABS warning light will appear Wheel traction decr...
Brake Light Switch

  Causes brake lights to light up when the brakes are applied Operated mechanically or hydraul...
Camshaft Sensor / Crankshaft Sensor

Camshaft Sensor: Monitors the positions of the camshaft to allow for correct ignition timing Cranksh...
Clutch Control Switch

  Notifies the ECU when the clutch is depressed to disengage the cruise control function. Only use...
COLUMN SWITCHES

Column switches have been growing in popularity as they are now a MoT requirement. They are a high value pro...
Coolant Temperature Sensor

  Ensures the engine does not overheat by measuring the temperature of the engine coolant Troub...
Diesel Pre–flap & Throttle Body

Diesel Pre–flap: Designed for diesel engines, used to increase the vacuum in the exhaust manifold...
Diesel Pre–flap & Throttle Body

Diesel Pre–flap: Designed for diesel engines, used to increase the vacuum in the exhaust manifold...
Door Light Switch

Actuates the door light when the door is opened Troubleshooting: Symptoms:  Door ...
Engine Sensors Explained

Question: Do you know the difference between a crank angle sensor and a primary engine position sensor? If n...
Knock Sensor

Knock Sensor:   Detects the combustion of pockets of air and fuel outside the normal ignition cy...
Lambda Sensor (Oxygen Sensor)

  Monitors the oxygen content of exhaust gas to help maintain the correct air/fuel ratio Ensur...
Lambda Sensor Technology

While the fundamental design of combustion engines has changed very little over the last 150 years, a number...
MAP Sensor (Manifold Absolute Pressure)

  Determines the correct air/fuel ratio in vehicles which do not have an air mass sensor Uses ...
Oil Pressure Switch/Transmitter

  Warns the driver if the oil pressure in the engine becomes too low Troubleshooting: Symp...
Radiator Fan Switch

  When the radiator reaches a predetermined temperature, the switch triggers the electric fan to r...
Reversing Light Switch

  When the reversing gear is applied the switch will operate the reversing lights on the back of t...
Troubleshooting oil level sensors

An oil level sensor continuously monitors the oil level and oil quality in your engine. It will alert you if...

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