Operation CHARM: Car repair manuals for everyone.

ECM




COMPONENT PARTS

ECM

- ECM (Engine Control Module) controls the engine.





- ECM consists of a microcomputer and connectors for signal input and output and for power supply.
- Battery voltage is supplied to the ECM even when the ignition switch is turned OFF for the ECM memory function of the DTC
memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc.