What does it mean when the driver alert system is activated?
1 Answers
Driver alert system activation means that the engine's exhaust emissions exceed the standard, and the OBD system sends a signal to activate the alert system. Below is more information about the driver alert system: 1. OBD Introduction: OBD is the abbreviation of On-Board-Diagnostics, which translates to "On-Board Diagnostics System" in Chinese. This system continuously monitors the engine's operating conditions to check if the vehicle's exhaust emissions exceed the standard. If they do, it immediately issues a warning. 2. Fault Condition: When the system detects a fault, the Malfunction Indicator Lamp (MIL) or Check Engine warning light will illuminate. At the same time, the Powertrain Control Module (PCM) stores the fault information in memory. Through a specific procedure, the fault code can be read from the PCM. Based on the fault code's prompt, maintenance personnel can quickly and accurately determine the nature and location of the fault.