Rodeo S 2WD L4-2.2L (1999)
Step 6 - 13
Test Description
Number(s) below refer to the step number(s) on the Diagnostic Chart:
1. The IAC motor analyzer J 39027-A is used to extend and retract the IAC valve. Valve movement is verified by an engine speed change. If no
change in engine speed occurs, the valve can be resettled when removed from the throttle body.
2. This step checks the quality of the IAC movement in step 1. Between 700 revolutions per minute (RPM) and about 1500, the engine speed should
change smoothly with each flash of the tester light in both extend and retract.
If the IAC valve is retracted beyond the control range (about 1500 RPM), it may take many flashes to extend the IAC valve before engine speed
