SYSTEM CONTROL
Cranking Hold Function (Models with Entry and Start System)
Once the engine switch is pressed, this function operates the starter until the engine starts, provided that the brake pedal is depressed and the shift lever is in the P or N position. This prevents application of the starter for an inadequate length of time and it also prevents the engine from being cranked after it has started.
The power management control ECU sends a drive signal (STAR) to the starter relay via the park/neutral position switch assembly upon the start signal (STSW) input from the engine switch and drives the starter. Then the power management control ECU turns the ACC relay operation signal (ACCD) off and prevents the accessory light from flickering when cranking.
The power management control ECU determines the cranking hold function operation time and the engine speed which indicates a successful start in accordance with the coolant temperature.
After the engine speed rises above approximately 500 rpm, the power management control ECU and ECM determines that the engine has started and stops the output of the STAR signal. This causes starter operation to stop and the power management control ECU to turn on the ACC relay.