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EC-50
[QR (WITH EURO-OBD)]
BASIC SERVICE PROCEDURE
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
Throttle Valve Closed Position Learning BBS0019H
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal. It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume Learning BBS0019I
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 - 95°C (158 - 203°F)
● PNP switch: ON
● Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
● Steering wheel: Neutral (Straight-ahead position)
● Vehicle speed: Stopped
● Transmission: Warmed-up
– M/T models: Drive vehicle for 10 minutes.
– A/T models
• With CONSULT-II: Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T” system indi-
cates less than 0.9V.
• Without CONSULT-II: Drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-49, "Accelerator Pedal Released Position Learning" .
2. Perform EC-50, "
Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
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