P0156

NOTE: The diagnostic trouble code "P0156/16540" is set 123 sec after engine start, at a coolant temperature over 80°C (17°F) and 45 sec after the probe heater behind the Three Way Catalytic Converter (TWC) is switched on, as soon as the signal voltage during a deceleration fuel shut off is greater than 300 m V. The length of the deceleration fuel shut off must be longer than 4 sec.