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P0050 HO2S Heater Circuit Bank 2 Sensor 1 Past that, I have few clues how to proceed. It is a heated O2 sensor (bank 2 is closest to firewall?) not sure whether sensor 1 is the upstream or downstream sensor. Check that the heater connection has continuity.
Easy way to reset all the codes is to pull the controls B+ fuse in the under-hood fuse block for 20 seconds. reset the codes and see if it comes back.
Oppie ('01 LW300)
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