Circuit Description
HINT:
This IMRV position sensor is non-contact type.
The IMRV position sensor is mounted on the valve shaft axis (see DTC P2004 INTAKE MANIFOLD RUNNER CONTROL STUCK OPEN (BANK 1), DTC P2006 INTAKE MANIFOLD RUNNER CONTROL STUCK CLOSED (BANK 1) ) and is used to measure the opening angle of the IMRV. Since this sensor is electronically controlled with hall elements, accurate control and reliability can be obtained.
Voltage of approximately 0.6 V is applied to terminal IACA of the ECM when the IMRV is fully closed. The voltage applied to terminal IACA increases in proportion to the IMRV opening angle, approximately 3.6 V is applied to the terminal when it is fully opened.
The ECM detects a malfunction in the IMRV position sensor when its voltage output deviates from the standard range. When a malfunction is detected, the ECM fully opens the IMRV using the IMRV motor until the IMRV position sensor returns to normal.
The related DTCs are on P2004 AND P2006 , and P2009 AND P2010 .
HINT:
After confirming DTC P2014, P2016 or P2017, use the hand-held tester or the OBD II scan tool to confirm the IACV POSITION (IMRV position sensor output voltage) from "DIAGNOSIS / ENHANCED OBD II / DATA LIST/ALL".