On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT INTAKE AIR CONTROL VALVE (for ACIS)
(a) Remove the V-bank cover sub-assembly.
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| (b) Disconnect the vacuum hose sub-assembly from the intake air control valve (for ACIS). |
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(c) Connect a hose and vacuum pump to the intake air control valve (for ACIS).
| (d) Using the vacuum pump, apply a vacuum to the intake air control valve (for ACIS). Check that the actuator rod operates when vacuum is applied. If the actuator rod does not operate when vacuum is applied, replace the intake air surge tank assembly. |
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(e) Using the vacuum pump, apply a vacuum to the intake air control valve (for ACIS). Check that there is no change in vacuum after 1 minute.
If the operation is not as specified, replace the intake air surge tank assembly.
(f) Disconnect the hose and vacuum pump from the intake air control valve (for ACIS).
(g) Connect the vacuum hose sub-assembly to the intake air control valve (for ACIS).
(h) Install the V-bank cover sub-assembly.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Cold Start Idle Control System Performance (P050A00)
MONITOR DESCRIPTION This monitor will run when the engine is started at an engine coolant temperature of -10 to 50°C (14 to 122°F). The DTC will be stored after the engine idles for 13 seconds (2 trip detection logic). The DTC is designed to monitor the idle air control at cold start. When the eng ...
