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INSPECTION AND ADJUSTMENT EC-25 < BASIC INSPECTION > [VQ40DE] C D E F G H I J K L M A EC N P O VIN Registration INFOID:0000000007357946 DESCRIPTION VIN Registration is an operation to register VIN in ECM. It must be performed each time ECM is replaced. NOTE: Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M). OPERATION PROCEDURE With CONSULT 1. Check the VIN of the vehicle and note it. Refer to GI-21, "Identification Number" . 2. Turn ignition switch ON with engine stopped. Accelerator Pedal Released Position Learning INFOID:0000000007357947 DESCRIPTION Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel- erator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time the harness connector of the accelerator pedal position sensor or ECM is disconnected. OPERATION PROCEDURE 1. Make sure that accelerator pedal is fully released. Throttle Valve Closed Position Learning INFOID:0000000007357948 DESCRIPTION Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time the harness con- nector of the electric throttle control actuator or ECM is disconnected or electric throttle control actuator inside is cleaned. OPERATION PROCEDURE With CONSULT 1. Turn ignition switch ON. 2. Select “CLSD THL POS LEARN” in “WORK SUPPORT” mode of “ENGINE” using CONSULT. 3. Follow the instructions on the CONSULT display. 4. Turn ignition switch OFF and wait at least 10 seconds. Check that throttle valve moves during the above 10 seconds by confirming the operating sound. Without CONSULT 1. Start the engine. NOTE: Engine coolant temperature is 25 ° C (77 ° F) or less before engine starts. 2. Warm up the engine. NOTE: Raise engine coolant temperature until it reaches 65 ° C (149 ° F) or more. 3. Turn ignition switch OFF and wait at least 10 seconds. Check that throttle valve moves during the above 10 seconds by confirming the operating sound. Idle Air Volume Learning INFOID:0000000007357949 DESCRIPTION Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under the following conditions: August 2012 2012 Pathfinder |