P1137

Schematic:

DTC PARAMETERS
DTC P1137 will set if the HO2S sensor 2 voltage is less than 399 mV for 6 seconds when the following conditions have been met:
^ O2S sensor 1 voltage is greater than 700 mV
^ In power enrichment mode.
^ The system is in closed loop mode.
^ Fuel level is greater than 10%.
^ DTCs P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0336, P0440, P0442, P0446, P0506, P0507, P0601, P0602 or P1441 are not set.

DIAGNOSTIC AIDS
Replace HO2S Sensor 2.