Condition for fault identification

Other voltage related preconditions:

• Supply voltage between 9 V and 16 V.

Temperature related-precondition:

• None

Time related-precondition:

• 5 s after engine on.

Other preconditions:

• Engine on.
• Heating of the catalytic converter (always takes place for at least 45 s after engine on)

Terminal status:

• Terminal 15 on.