Code Enable Criteria

PCM will run diagnostic for this DTC under the following conditions

• DTC P0107, P0108, P0122, P0123, P1106, P1107, P1121, or P1122 are not set.
• Engine has been running longer than 2 minutes.
• Engine coolant temperature is more than 167°F (75°C).
• MAP reading is less than 50 kPa for a TP sensor skewed high test, or more than 70 kPa for a TP sensor skewed low test.
• MAP reading is steady for at least 5 seconds.

DTC P0121 will set when:

• TP sensor reading is more than predicted value when MAP is less than 50 kPa.
• TP sensor reading is less than predicted value when MAP is more than 70 kPa.
• Conditions are present for 5 seconds.