FX35 RWD V6-3.5L (VQ35DE) (2003)
Idle Speed/Throttle Actuator - Electronic: Service and Repair
Perform If Throttle Actuator Is Replaced
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:
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Each time electric throttle control actuator or ECM is replaced.
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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.
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Battery voltage: More than 12.9 V (At idle)
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Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
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PNP switch: ON
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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.
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Steering wheel: Neutral (Straight-ahead position)
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Vehicle speed: Stopped
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Transmission: Warmed-up
For models with CONSULT-II, drive vehicle until "FLUID TEMP SE" in "DATA MONITOR" mode of "A/T" system indicates less than 0.9 V.
For models without CONSULT-II, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform "Accelerator Pedal Released Position Learning".
2. Perform "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.
5. Select "IDLE AIR VOL LEARN" in "WORK SUPPORT" mode.
6. Touch "START" and wait 20 seconds.