2012年4月18日星期三

what is obd2

obd2 is an advance over obd1 in both adequacy and standardization. The obd2 accepted specifies the blazon of analytic adapter and its pinout, the electrical signalling protocols available, and the messaging format. It as well provides a applicant account of car ambit to adviser forth with how to encode the abstracts for each. There is a pin in the adapter that provides ability for the browse apparatus from the car battery, which eliminates the charge to affix a browse apparatus to a ability antecedent separately. However, some technicians ability still affix the browse apparatus to an abetting ability antecedent to assure abstracts in the abnormal accident that a car adventures a accident of electrical ability due to a malfunction. Finally, the obd2 accepted provides an adaptable account of DTCs. As a aftereffect of this standardization, a individual accessory can concern the on-board computer(s) in any vehicle. This obd2 came in two models obd2A and obd2B. obd2 acclimation was prompted by emissions requirements, and admitting alone emission-related codes and abstracts are appropriate to be transmitted through it, a lot of manufacturers accept fabricated the obd2 Abstracts Link Adapter the alone one in the car through which all systems are diagnosed and programmed. obd2 Analytic Trouble Codes are 4-digit, preceded by a letter: P for engine and manual (powertrain), B for body, C for chassis, and U for network.

1 条评论:

  1. This means that they used a map sensor and various other sensors to perform the calculations that the maf sensor on newer vehicles will do. Can't always remember obdmate om520.autel maxidas ds708 everything, only reason I know if it has a maf sensor is because we have to Chevy trucks like his on our ranch. Hope you will be able to figure out your problem. Could be a defective idle air control valve (IAC) or vacuum leak. Any suggestion what to do now? Most likely your replacement catalytic converter will not satisfy the catalyst monitor parameters once a working 02 sensor is installed!

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