How to Deal with Internal ECU Failure in the Engine?

1 Answers
McHadley
07/30/25 1:00am
Engine ECU internal failure handling method: Go to a repair shop to replace the ECU. The following are methods to diagnose the faulty part of the ECU: 1. Visual Inspection Method: The visual inspection method involves observing circuits, components, etc., with the naked eye to identify abnormalities and directly locate the faulty part and cause. 2. Contact Inspection Method: The contact inspection method involves the inspector directly touching the ECU while it is operational to locate the fault point. By sensing temperature through touch and detecting odors through smell, abnormal symptoms can be confirmed. To avoid causing new faults, during the inspection, the ECU should be placed steadily, ensuring that the circuit board or electronic components maintain a safe distance from other parts (especially the vehicle chassis) to prevent short circuits that could lead to irreparable damage. 3. Fault Reproduction Method: The fault reproduction method intentionally allows the fault to recur, aiming to slow down the occurrence, development, and transformation process of the fault. This provides ample opportunities, frequency, time, and process for observation, helping to identify factors influencing the fault and thereby determining the faulty part and cause.
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