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6E1-16 ENGINE AND EMISSION CONTROL SYSTEM
1
1) Connect scan tool (1) to DLC with ignition switch OFF.
2) Warm up engine to normal operating temperature.
3) Check engine idle speed and "IAC duty" by using "Data List"
mode on scan tool to check "IAC duty".
4) If duty and/or idle speed is out of specifications, inspect idle
air control system referring to "Table B-4 Idle Air Control
System Check" in Section 6.
Engine idle speed and IAC duty
A/C OFF
700 ± 50 r/min (rpm)
10 – 55 %
5) Check that specified engine idle speed is obtained with A/C
ON if vehicle is equipped with A/C.
If not, check A/C request signal circuit and idle air control
system.
A/C ON
850 ± 50 r/min (rpm)
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