Possible Causes - DTC P0032 Or DTC P0052
WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when an excessively high voltage is sent to ECM through HO2S1 heater. Possible causes are:
- HO2S1 heater circuit shorted.
- Defective HO2S1.
NOTE:
Before proceeding, ensure battery voltage is 10.5-16.0 volts at idle.