Idle Air Control Valve Wiring Diagram. If meter reading rises but the co does not check frequency valve wiring and replace valve if wiring is ok. 1 check other dtc output.
The idle air control iac valve controls the engine idle speed and dashpot functions. The iac has a plunger or shutter that moves to open or close the bypass air passageway. But the pins on my valve dont have a number on them.
Reconnect the iac valve connector.
9 inspect idle air control valve. I traced it to the idle air control solinoid. Honda cr v element cr v at b20 aic valve wire colors can unfortunately and before installing another ecu id like to verify if those two valve or iac. 4 check ac signal circuit.