9 time out of 10, the heater circuit internal to the sensor has failed. Replace the sensor.
Locate heater control valve in a 2001 Honda civic
Where is the LAF sensor located on a 92 honda civic?
4 wires, the black ones are the O2 heater (on the sensor side), the white and green are the O2 sensor itself
Trouble code P0141 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 2)
See for yourself in this pic for a 95 Honda Civic
Code P0135 means: Front HO2S Heater circuit Fault (Sensor 1)
The block heater, on your 2001 Honda Civic, can be found on the front of the engine block. The engine block heater cord is mounted just below the front grill.
There are a couple of reasons why a Honda Civic heater fan is not working. The fan motor may of blown or a fuse needs to be replaced.
where the oil pressure sensor located on 1997 Honda Civic EX 1.6L
how to reset a tire sensor for a 2008 Honda civic si
The 1995 Honda Civic speed sensor is located on the front passenger wheel. The speed sensor will be found on the inside of the brake rotor.