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Tell-tale (automotive) A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine". Graphical tell-tales. A tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.
Various angles and details of a "MaxScan OE509" – a fairly typical onboard diagnostics (OBD) handheld scanner from the first decade of the 21st century. Used to connect to the SAE J1962 Data Link Connector (DLC) found in many cars of the era. On-board diagnostics ( OBD) is a term referring to a vehicle's self-diagnostic and reporting capability.
An engine control unit ( ECU ), also called an engine control module ( ECM ), [1] is a device which controls multiple systems of an internal combustion engine in a single unit. Systems commonly controlled by an ECU include the fuel injection and ignition systems. The earliest ECUs (used by aircraft engines in the late 1930s) were mechanical ...
Image Credits: Tesla. Thanks to three vulnerabilities chained together, malicious hackers could remotely hack into a Tesla, turn off the lights, honk the horn, open the trunk, activate the ...
Trionic. Trionic is an engine management system developed by Saab Automobile. It consists of an engine control unit (ECU) that controls 3 engine aspects: Acts as a boost controller. The numerical prefix ' tri- ' yes (Tri being three) in Trionic. 'Ion' comes from the fact that it uses ion current, measured by the spark plugs between combustion ...
Electronic throttle control ( ETC) is an automobile technology that uses electronics to replace the traditional mechanical linkages between the driver's input such as a foot pedal to the vehicle's throttle mechanism which regulates speed or acceleration. This concept is often called drive by wire, [1] [2] and sometimes called accelerate-by-wire ...
Image Credits: Tesla. Tesla has enabled the in-car camera in its Model 3 and Model Y vehicles to monitor drivers when its Autopilot advanced driver assistance system is being used. In a software ...
A traction control system ( TCS ), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicles, designed to prevent loss of traction (i.e., wheelspin) of the driven road wheels. TCS is activated when throttle input and engine power and torque transfer are mismatched to the road ...