What are the common methods for automotive fault diagnosis?
1 Answers
Automotive fault diagnosis methods include visual inspection and inquiry, experience-based method, observation method, auditory method, and testing method. The specific introductions are as follows: Visual Inspection and Inquiry: When a vehicle develops a fault that requires diagnosis, the first thing a repair technician should do upon seeing the vehicle is to make a preliminary judgment about its model and age. The model can be identified by its appearance, while the age can be estimated by examining the exterior or by flipping open the engine compartment to expose the engine. Experienced technicians can often diagnose the fault immediately. Experience-Based Method: As the name suggests, the experience-based method relies on the basic skills and extensive experience of drivers and repair technicians to quickly and accurately diagnose automotive faults. Observation Method: The observation method involves the automotive technician carefully examining the fault phenomenon at the location indicated by the vehicle user and then making a judgment about the fault. This is one of the most widely used, fundamental, and effective fault diagnosis methods. Auditory Method: Using hearing to diagnose automotive and engine faults is one of the most common and straightforward methods. When a vehicle is running, the engine operates under different conditions, and the vehicle and engine together produce a noisy yet rhythmic sound. When a fault occurs in a particular part, abnormal noises will emerge. Experienced individuals can immediately diagnose the fault based on these abnormal sounds. Testing Method: Using the testing method to diagnose automotive and engine faults is another common approach. This method allows for checking the functionality of the vehicle and engine without or with minimal disassembly, thereby achieving the goal of fault diagnosis.
