Code 25

IACV-AAC Test:

IACV - AUXILIARY AIR CONTROL VALVE (DTC: P0505)
For malfunction (a)
1) Turn ignition switch "ON" and wait for at least 2 seconds.
2) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.

For malfunction (b)
1) Start engine and warm it up sufficiently.
2) Turn ignition switch "OFF" and wait for at least 3 seconds.
3) Start engine again and run it for at least 30 seconds at idle speed.
4) Turn ignition switch "OFF", wait for at least 3 seconds and then "ON".

Switching Test Modes:

5) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECCS Control Module.