Conditions for Setting the DTC

P0030 or P0036

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

P0031 and P0037 

The ECM detects a short to ground in the heater control circuit of the heated oxygen sensor when the heater is commanded OFF. The condition exists for greater than 7 s.

P0032 and P0038 

The ECM detects a short to voltage in the heater circuits of the heated oxygen sensor when the heater is commanded ON. The condition exists for greater than 7 s.

P0053 or P0054

• The ECM detects that the affected HO2S heater low control circuit resistance is not within a specified range at engine start-up.
• DTCs P0053 and P0054 set within 1 s when the above condition is met.

P0135

• The ECM detects that the affected HO2S 1 heater current parameter is more than 2.5 A or less than 0.3 A.
• DTC P0135 sets within 60 s when the above condition is met.

P0141

• The ECM detects that the affected HO2S 2 heater current parameter is more than 2.5 A or less than 0.3 A.
• DTC P0141 sets within 60 s when the above condition is met.