Malfunction Indicator Lamp Chevrolet Lacetti

Once you pull read this code you may begin diagnosis.

Malfunction indicator lamp chevrolet lacetti. The check engine light came on after the speedometer stopped working a problem that occurs with digital speed sensors is that they may malfunction and stop sending data to the car s computer. The check engine light also called the malfunction indicator comes only when the computer control unit called the pcm senses a fault in the electronic controls of the engine and or the emission system there are about 200 possible faults that turn the light on to know what has developed a problem you must have the system tested this is called an obd2 fault code test kragen and autozone parts stores do this testing for free. Whenever this warning light or any other stays on in the dash it is indicating that the systems control module or the system sensor in the case of lights like low oil pressure door open indicators etc has detected a fault it then disables the system this applies to abs tcs tcm srs tpms mil cel and bcm faults and others as long as the light is on. When a check engine light mil malfunction indicator lamp is turned on there is a dtc diagnostic trouble code set stored in the ecm pcm engine control module powertrain control module.

The only thing the light tell you is the computers sensors have seen a problem. Bought 05 lacetti february this year in april malfunction indicator lamp came on and started to lose power took it for diognostic test and they sorted it today june it has come on again before i take it in again does anyone know if it can be fixed for good thanks. When the computer tries to calculate road speed it does not receive any information and as a result the check engine light glows. This code identifies which engine management system component function experienced a malfunction.

You need to get the codes out of the cars computer you need the use of a scan tool some auto parts stores will scan your car for you for no charge. What does the engine malfunction warning light indicate. Chevrolet equinox owners manual instruments and controls warning lights gauges and indicators malfunction indicator lamp this light is part of the vehicle s emission control on board diagnostic system.