I HAVE PERFORMED RESISTANCE TEST USING AN OHM METER ON MY IACV. IT GIVES VALUE 50.9 K OHM. IS IT BAD?
2007 Toyota Corolla
May, 4, 2012 AT 5:04 PM
I have cleaned throttle body many times with IACV, but still RPM drops when clutch is pressed. Nw finally I read an article in which resisitance check diagnostic was displayed. M hvng thz value kindly tell me is it normal for my IACV. And also tell me hw to check wiring of ECM to IACV?
Go to this walk thru link: How do you test the idle air control valve
May, 6, 2012 AT 1:26 PM
Dear tell me about this resistance reading of 50.9 kilo ohm. Is IACV bad or not?Thanx
May, 6, 2012 AT 2:49 PM
It is not as simple as that. The fact that it is not 0 ohms or infinity makes it ok as you are measuring the resistence of the windings in the motor. It is the controls that need checking from the ecm. You need a scan tool to manipulate the motor to work from full open to full closed.
As I said, it is not that simple and requires a scan tool for further checks.