Step 1: according to the owner’s description, the vehicle cannot be started occasionally, and the fault is irregular. This is an occasional symptom, so I took a taxi and found that the key was turned to the “start” gear, the vehicle did not respond, and the starter did not work plug is rusty.
Step 6: because the master didn’t know where the start request signal switch was at that time, he tried to unplug other switches. After all, these switches are public plug is rusty grounding. When the water contained in the oil is removed, it is found that the plug has been corroded and has copper green. At this time, try to start the vehicle and it can be started plug is rusty.
Step 7: rewire and replace the plug to solve the problem. This vehicle is mainly used for loading salt. It is highly corrosive and can easily corrode the plug plug is rusty.