Control Flow
During Engine Start with Ignition Switch
*: Fuse and Fusible Link Block
When the engine is started with ignition switch operation, ECM turns ON the starter relay to activate the starter motor. This allows the starter motor to start the engine.
During Engine Restart by Stop/Start System
*: Fuse and Fusible Link Block
When engine is restarted, ECM turns ON the starter relay. At the same time, EMCM turns ON the engine restart bypass control relay and activates the engine restart bypass relay. When the starter motor is rotating, EMCM turns OFF the engine restart bypass control relay to deactivate the engine restart bypass relay.
Relay Activation Matrix
|
Condition |
Relay |
||
|
Starter relay |
Engine restart bypass relay |
Sub battery relay |
|
|
Engine start with ignition switch |
ON |
OFF |
OFF |
|
Engine restart by start/stop system |
ON |
ON * -> OFF |
OFF |
|
Engine running |
OFF |
OFF |
ON |
*: Instantaneously right after the restart.