Conditions for Setting the DTC

P0131

• The ECM detects that the HO2S 1 Voltage parameter is less than 50 mV.
• DTC P0131 sets within 100 seconds during the lean test when the above condition is met.

P0132

• The ECM detects that the HO2S 1 parameter is more than 1,050 mV.
• DTC P0132 sets within 15 seconds during the rich test when the above condition is met.

P0137

• The ECM detects that the HO2S 1 voltage parameter is less than 50 mV.
• DTC P0137 sets within 100 seconds during the lean test when the above condition is met.

P0138

• The ECM detects that the HO2S 1 voltage parameter is more than 1,050 mV.
• DTC P0138 sets within 100 seconds during the rich test when the above condition is met.