Conditions for Setting the DTC

Lean Test

• The PCM detects that the HO2S 2 Voltage parameter is less than 50 mV for 100 seconds.
• DTC P0137 sets within 100 seconds during the lean test when the above condition is met.

Power Enrichment Test

• The PCM detects that the HO2S 2 Voltage parameter is less than 700 mV for 100 seconds.
• DTC P0137 sets within 100 seconds during the power enrichment test when the above condition is met.