Possible Causes - DTC P0037 (Bank 1) Or DTC P0057 (Bank 2)
WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when an excessively low voltage is sent to ECM through HO2S 2 heater. Possible causes are:
- HO2S 2 heater circuit open or shorted.
- Defective HO2S 2.