Conditions for Setting the DTC

P0030 or P0036

• The ECM detects that the affected HO2S heater low control circuit is not within a specified range.
• DTCs P0030 or P0036 set within 3 seconds when the above condition is met.

P0053

• The ECM detects that the affected HO2S heater low control circuit is not within a specified resistance range at engine start-up.
• DTC P0053 sets within 3 seconds when the above condition is met.

P0054

• The ECM detects that the affected HO2S heater low control circuit is not within a specified resistance range at engine start-up.
• DTC P0054 sets within 3 seconds when the above condition is met.

P0135

• The ECM detects that the HO2S 1 heater current is more than 3.125 amps or less than 0.25 amp.
• DTC P0135 sets within 120 seconds during the heater current test when the above condition is met.

P0141

• The ECM detects that the HO2S 2 heater current is more than 2.875 amps or less than 0.25 amp.
• DTC P0141 sets within 120 seconds during the heater current test when the above condition is met.