Conditions for Setting the DTC
P0196
The ECM detects the actual EOT is 40°C (104°F) colder than the calculated EOT of the controller, for greater than 4 seconds or a cumulative time of 30 seconds.
P0197
The ECM detects that the EOT circuit resistance is less than 25 Ω for greater than 50 s.
P0198
The ECM detects that the EOT circuit resistance is greater than 450 k Ω for greater than 50 s.
P0199
The ECM detects that the EOT circuit signal is erratic.