P0147 Honda -

Question

02sensor heater circuit bank 1 sensor3

Answer 1

P0147 Third H02S (Sensor 3) heater circuit malfunction

Check the fuse in the engine fuse box listed as No.4 FI-ECU.. if its good reset the code condition. If the code returns replace the 3rd H02S sensor, Honda at one time did a warranty for the 2nd and 3rd H02S sensor this was for 8 years , Being a 2004 it may just be too late, Contact the dealer check to see if the Campaign warranty applies to your vehicle TSB# 11-044 named Secondary / third 02 sensor warranty extension