Enable Criteria

General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperature must exceed -7°C.

Accepted transition diagnosis of oxygen sensor 1. Purge active. Idling. Max one change in status of brake light switch. Purge adaptation higher than -7%. Car stationary for 8s.

The diagnosis will start once the above conditions have been fulfilled. If the diagnosis is interrupted then the speed must exceed zero on one occasion before it is allowed to restart.