What is the detection method of connector terminal debounce pin short circuit fault?

Connector terminal short circuit fault detection: 1. Check the disconnection of the wires. Remove the terminals on both sides of the control computer ECU and sensor, then measure the resistance between the corresponding terminals. If the resistance is not greater than 1 ohm, the wires are normal for the next inspection. When measuring the resistance of the wires, it is recommended that the wires be gently shaken both vertically and horizontally to improve the accuracy of the measurement. At the same time, care should be taken to insert most wire terminals and multimeter sticks from the rear end of the connector, but not from the rear end of the waterproof terminal meter sticks with waterproof sleeves, because the slightest carelessness in insertion will deform the terminals.　　2. Check the short circuit resistance value. First of all, remove the control computer ECU and the sensor on both sides of the wire terminals, and then measure the resistance value between the two sides of the connector terminal rows and the body. Measurement, one end of the meter stick connected to the body, the other end of the wire connectors on both sides of the measurement. If the resistance value is greater than 1 ohm, it indicates that there is no short-circuit fault between the wire and the body.　　3, check the appearance of the terminals and contact pressure. First, each terminal should be removed one by one to check whether there is rust contact and dirt on the connector terminals and clean up corrosion and dirt. Then check whether the terminal piece is loose or damaged, and whether the terminal is fixed firmly. The terminals should not come loose when gently pulled. On the contrary, if it is easier to pull out the plug terminals in which seating hole than in other seating holes, the seating holes may cause poor contact failures in use.

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