System Description

When rapid deceleration occurs during engine runs or idle speed decreases due to heavy load conditions, ECM detects a decrease in idle speed and restarts the engine to secure reliability in handle ability by transmitting a cranking request signal to IPDM E/R for activating the starter motor under the following conditions:

• Selector lever: Other than P and N (CVT models)
• Shifter lever: Other than neutral position (M/T models)
• Idle switch: ON (Accelerator pedal not depressed)
• Brake switch: ON (Brake pedal depressed)

ECM transmits a control signal to IPDM E/R via BCM by CAN communication.

IPDM E/R detects an operating state of the starter motor relay and the starter motor control relay and transmits a feed back signal to ECM via CAN Communication.