The EPC warning {light|gentle|mild} is an instrument cluster {based|based mostly|primarily based} LED {found|discovered} on all Volkswagen, Audi, Seat and Skoda {vehicles|automobiles|autos} fitted with a drive-by-wire system and EPC stands for Electronic Power Control. However the EPC warning {light|gentle|mild} {is not|is just not|isn't|just isn't|shouldn't be|will not be} {exclusive|unique} {to these|to those} VAG {cars|automobiles|vehicles}, most {other|different} motor manufacturers {also have|even have} them, since {it's|it is} legislated to be {part of|a part of} the OBDII system. This EPC {light|gentle|mild} when lit {displays|shows} the letters EPC and primarily warns the driver {that there is|that there's} {problems|issues} {in the|within the} engine's torque system - (acceleration system). When this EPC {light|gentle|mild} comes on, the vehicle抯 throttle valve (butterfly) {may be|could also be} {limited|restricted} {in order|so as} {to protect|to guard} the engine from {damage|harm|injury}. It prevents the engine from revving above 2000rpm. This {is known as|is called|is named} limp mode and the ECU permits {just|simply} {sufficient|adequate|ample|enough} {power|energy} to drive the {vehicle|automobile|car} to a service {center|heart|middle} for repairs. To {remedy|treatment} {the problem|the issue}, the vehicle抯 ECU {should be|must be|needs to be|ought to be} scanned with an automotive diagnostic too, {in order to|as a way to|in an effort to|so as to|to be able to|with a purpose to|with a view to|with the intention to} extract the DTC's {related|associated} to the torque {problem|downside|drawback}. Cars with an accelerator cable are {also|additionally} fitted with an EPC {light|gentle|mild} {but the|however the} ECU {software|software program} {is quite|is kind of|is sort of} {different|completely different|totally different}, {yet|but} {the overall|the general} principal {remains|stays} {the same|the identical}.
All Volkswagen (VAG) {vehicles|automobiles|autos} have {a whole|a complete|an entire} array of dashboard warning lights {in their|of their} instrument panels, {specifically|particularly} designed to alert the driver to any {vehicle|automobile|car} malfunctions or {problems|issues}. {In fact|Actually|In actual fact|In reality|In truth|The truth is} so does all most {modern day|modern-day} {automobiles|cars|vehicles}. Having {said|mentioned|stated} that, {it is only|it is just|it's only} a matter of time {before|earlier than} these lights {start|begin} lighting up. Invariably and inevitably all {cars|automobiles|vehicles} will breakdown at {sometime|someday} or {the other|the opposite} {but|however} its {nice|good} to be warned {about a|a couple of|a few} mechanical {problem|downside|drawback} {before|earlier than} it {actually|really|truly} {occurs|happens}. The one warning {light|gentle|mild} that puzzles most drivers is the VW EPC warning {light|gentle|mild}. Driver {often|typically|usually} ask, {what is the|what's the} VW EPC warning {light|gentle|mild}? When it lights up {whilst|while} driving and {the trouble|the difficulty} {is related|is expounded|is said} to a {safety|security} {issue|challenge|concern|difficulty|problem|situation|subject}, the {car|automobile|automotive} will {more than|greater than} {likely|doubtless|possible|probably|seemingly} go into limp mode. {This may|This may increasingly|This may occasionally|This will|This will likely} sound {quite|fairly} {serious|critical|severe} {but|however} {in most cases|generally|most often|normally|typically|usually} {it's not|it is not|it isn't}. There are {several|a number of} {reasons why|explanation why|the explanation why|the reason why} EPC Dashboard Warning Light turns on, {but|however} {through|by|by means of|by way of|via} a {process of|means of|strategy of|technique of} elimination the {cause|trigger} {can be|could be|may be|might be|will be} tracked down {fairly|pretty} {easily|simply}. The Engine Speed Sensor {is known|is thought|is understood} to {cause|trigger} the EPC {light|gentle|mild} to {turn on|activate}.
The engine {speed|pace|velocity} sensor is a proximity magnetic transducer counting the revolutions of the flywheel / crankshaft and sends {a steady|a gentle|a gradual} stream of pulses to the ECU. So when this stream {of data|of information|of knowledge} is interrupted for {whatsoever|by any means|in any respect|in any way|in anyway} {reason|cause|motive|purpose} {for only|for less than|for under} a fraction of a second, the ECU detects this and turns on the EPC {light|gentle|mild} and cuts {power|energy} to the engine. It does this {to protect|to guard} the engine from {damage|harm|injury}. {If you have|If in case you have|In case you have|When you have|When you've got|You probably have} a scan {tool|device|instrument|software}, {check|examine|test|verify} for DTC errors. The Accelerator Pedal itself {is often|is commonly|is usually} {the main|the primary|the principle} {culprit|offender|perpetrator|wrongdoer} that causes EPC {problems|issues}. A telltale {sign|signal} is that the engine idles {a lot|loads|lots|quite a bit|rather a lot|so much|too much} {faster|quicker|sooner} than it aught to. To {verify|confirm} this, {physical|bodily} pull the accelerator pedal away from the {floor|flooring|ground} board {while|whereas} the {car|automobile|automotive} is idling. If it reduces the engine's revs {back|again} to {normal|regular}, then {it is time to|it's time to} {replace|change|exchange|substitute} it, {because|as a result of} the potentiometers {that's|that is} {built|constructed} into the the accelerator pedal, have gone {faulty|defective}.
Mass air {flow|circulate|circulation|move|movement|stream} sensor is {another|one other} engine {component|element|part} that {can cause|could cause|may cause} the EPC {light|gentle|mild} to {turn on|activate}. Cleaning the mass air {flow|circulate|circulation|move|movement|stream} sensor with compressed air does {often|typically|usually} {solve|clear up|remedy|resolve} {the problem|the issue} {but if|but when} {the issue|the difficulty|the problem} persists, its time to {replace|change|exchange|substitute} mass air {flow|circulate|circulation|move|movement|stream} sensor. But {before|earlier than} {changing|altering} it, {check|examine|test|verify} to see if any of the rubber hoses in its {vicinity|neighborhood} {isn't|is not} perished. An leak in Air Intake System wil {allowing|permitting} air unmonitored to enter the intake {which will|which can|which is able to} throw a P2279 / 15093 error or a P0068 / 15101 error. The Throttle {body|physique} is by far {the most common|the commonest|the most typical} {cause|trigger} of an EPC {problem|downside|drawback} {though|although} {in many|in lots of} {cases|circumstances|instances} {it is not|it isn't|it's not} the throttle {body|physique} {that's|that is} at fault {but|however} {rather|fairly|moderately|quite|reasonably|relatively|slightly|somewhat} that it the {needs to be|must be} recalibrated (adaptation). The scan codes like P2135 / P2136 / P2137 / P2138 / P2139 and P2140, will give {a good idea|a good suggestion} as to {whether|whether or not} or not the throttle {body|physique} require {replacement|alternative|substitute}.
