Conditions for Setting the DTC

Heater Current Test

• The PCM detects that the HO2S 2 Heater Current parameter is more than 1.5 amps or less than 0.199 amps.
• DTC P0141 sets within 115 seconds during the heater current test when the above condition is met.

Heater Resistance Test

• The PCM detects that the HO2S 2 heater calculated resistance is not within an expected range at engine start-up.
• DTC P0141 sets within 5 seconds during the heater resistance test when the above condition is met.