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INSPECTION AND ADJUSTMENT EC-129 < BASIC INSPECTION > [VK56DE] C D E F G H I J K L M A EC N P O Without CONSULT 1. Turn ignition switch ON. blinking and turned ON. 5. Fully release the accelerator pedal. Idle Air Volume Learning INFOID:0000000009886529 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 any of the following conditions: • Each time electric throttle control actuator or ECM is replaced. • Idle speed or ignition timing is out of specification. PREPARATION Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied. Learning will be cancelled if any of the following conditions are missed for even a moment. • Battery voltage: More than 12.9V (At idle) • Engine coolant temperature: 70 - 100 °C (158 - 212°F) • Select lever: P or N • Electric load switch: OFF (Air conditioner, headlamp) On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is start the headlamp will not be illuminated. • Steering wheel: Neutral (Straight-ahead position) • Vehicle speed: Stopped • Transmission: Warmed-up - With CONSULT: Drive vehicle until “ATF TEMP SE 1” in “DATA MONITOR” mode of “A/T” system indicates less than 0.9V. - Without CONSULT: Drive vehicle for 10 minutes. OPERATION PROCEDURE With CONSULT 1. Perform EC-128, "Accelerator Pedal Released Position Learning" . 2. Perform EC-128, "Throttle Valve Closed Position Learning" 3. Start engine and warm it up to normal operating temperature. Learning will not be carried out successfully. In this case, find the cause of the incident by referring to the DIAGNOSTIC PROCEDURE below. 8. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications. Without CONSULT NOTE: ITEM SPECIFICATION Idle speed 650 ± 50 rpm (in P or N position) Ignition timing 15 ± 5° BTDC (in P or N position) |