What is OBD? How is it important?

Short for (On-board Diagnostics) is a system that analyzes engine performance and alerts the driver to the cause of both software and hardware failures. OBD diagnostics and alarms are a standard that automakers must follow in order to ensure compliance across all brands. in the past All cars must have an OBD I (OBD Level 1) system.

What is OBDII?

OBD I system is a basic engine diagnostic system when the ECU detects that any engine or system There is a malfunction will appear flashing light bulb on the wound dial but will not inform the cause that the malfunction What happened? This is the disadvantage of the OBD I system. If you need extra resources on OBD, browse around here.

The OBD I system has come into play since the early 1980's. The OBD function is embedded in the ECU and monitors the operation of various systems. Consequently, the International Automobile Federation (SAE) has recognized the importance of OBD and has pushed car manufacturers to develop a more consistent and advanced OBD system. Until it became OBD II that we can see widely in today's cars.

The advent of OBD II

The OBD II system has been developed from OBD I for OBDII that in addition to being able to notify about malfunctions. It can also indicate the cause of the problem as well. Therefore, it is considered beneficial for car users directly. Including the service center that serves to check the car. Usually the OBDII plug is installed in the cabin. the bottom of the console

In addition to the OBD II system will be able to detect and warn of malfunctions. Another objective that SAE enforces the OBD II system on all types of vehicles is that It is directly related to the exhaust emission standards. for example If a car There is an abnormal combustion system. or has a faulty exhaust filter system Until the amount of emissions exceeds the standard OBD II system will alert by showing a warning light on the dashboard immediately. So that the driver can bring the car to check at the service center to find the cause.

What is OBD II Scanner?

Today, OBDII scanners are widely used for various measurements. read from the engine rpm sensor The use of scanners (including processed data) is an indispensable tool for analyzing engine performance in today's automobiles. This will allow us to detect anomalies and analyze faults. As a result, it is possible to troubleshoot and repair the engine on the spot.

AEM OBDII scan reads erase DTCs codes

Gauge reads and clears X-Series OBDII codes
readable
-MAF
-Boost Boost
-Intake air temp
-Ambient air temp
-Engine coolant temp
-Fuel Rail Pressure
-EGT Temp Exhaust Temperature
-RPM tachometer
-Ethanol% %Ethanol
-Engine Fuel Rate, oil flow rate, liters / hour.
-OpenLoop/CloseLoop
-Throttle % Throttle opening rate
-VSS car speed Kph
-Lambda, lambda values
and so on

OBD II, from On-board Diagnostic, is a standard jointly defined by the SAE and ISO, which standardizes how digital data is exchanged. between the computer systems installed on the car related to the emissions (Emission) with the scanner data. Both hardware and software, the installation location of the detected fault code (Malfunction Indicator Light (MIL)) and show the value to the driver or technician to know about the problem.