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SYSTEM EC-649 < SYSTEM DESCRIPTION > [MR EXCEPT FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O STARTER MOTOR DRIVE CONTROL : System Diagram INFOID:0000000012198223 STARTER MOTOR DRIVE CONTROL : System Description INFOID:0000000012198224 INPUT/OUTPUT SIGNAL CHART 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 handleability by transmit- ting a cranking request signal to IPDM E/R for activating the starter motor under the following conditions: • Selector lever: P or any position other than N • Idle switch: ON (Accelerator pedal not depressed) • Brake switch: ON (Brake pedal depressed) On the other hand, models with the Intelligent Key System transmit a control signal to IPDM E/R by way of BCM via CAN communication. IPDM E/R detects an operating state of the starter motor relay and the starter motor control relay and trans- mits a feed back signal to ECM via CAN Communication. EVAPORATIVE EMISSION SYSTEM JSBIA5976GB Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor (POS) • Engine speed Starter motor • BCM (Starter relay & start- Camshaft position sensor (PHASE) Engine coolant temperature sensor Engine coolant temperature Accelerator pedal position sensor Accelerator pedal position Transmission range switch Gear position Stop lamp switch Brake pedal position Combination meter CAN commu- Vehicle speed signal |