Condition for fault identification

Temperature precondition:

• Coolant temperature greater than 80 °C

Time precondition:

• None

Other preconditions:

• Constant-speed driving at an average engine speed (1100 RPM to 1300 RPM).
• No fault code memory entries that could cause a fault in the fuel-air mixture.

Control unit voltage: 9 V to 16 V.

Terminal 15 on