Electronic Control

ELECTRONIC CONTROL




a. REMOVAL AND INSTALLATION OF BATTERY TERMINAL
1. Before performing electronic work, disconnect the battery negative (-) terminal cable beforehand in order to prevent it from shorting and burning out.
2. When disconnecting and installing the terminal cable, turn the ignition switch and lighting switch OFF and loosen the terminal nut completely. Perform these operations without twisting or prying the terminal.
3. When the battery terminal cable is removed, all the data stored (clock, radio, DTCs, etc.) are erased. Before removing the cable, make a record of the settings of each memory system.
4. When the battery negative (-) terminal cable is disconnected, memories of various systems are erased. Refer to the PRE-CHECK for each system to make sure whether or not the system needs to be initialized after the battery negative (-) terminal cable is disconnected. If necessary, be sure to initialize the system.




b. HANDLING OF ELECTRONIC PARTS
1. Do not open the cover or case of the ECU unless absolutely necessary (If the IC terminals are touched, the IC may be rendered inoperative by static electricity).
2. To disconnect electronic connectors, pull the connector itself, not the wires.
3. Be careful not to drop electronic components, such as sensors or relays. If they are dropped on a hard floor, they should be replaced and not be reused.
4. When cleaning the engine with steam, protect the electronic components, air filter and emission-related components from water.
5. Never use an impact wrench to remove or install temperature switches or temperature sensors.
6. When checking the continuity at the wire connector, insert the tester probe carefully to prevent terminals from bending.