Display Group 018

DISPLAY OVERVIEW

VAG 1551 Display Overview, Display Group 018:

Note for display field 1:
The ECM internally specified duty cycle value is displayed without current or voltage correction.

Note for display field 2:
The current (amperage) actually drawn by the IAC valve is displayed.

Notes for display field 3:
^ Positive values indicate an increase in actual duty cycle in order to achieve specified current.
^ Negative values indicate reduction in actual duty cycle in order to achieve specified current.
^ If +60% (high value) is displayed for a long period of time, high connector resistance and/or an overheated IAC valve could be the cause. If -40% (low value) is indicated for a long period of time, a winding short circuit in the IAC valve could be the cause.