P0135 on Mitsubishi galant 2003
Definition:
HO2S 11 Heater condition (Heated Oxygen Sensor Bank 1 Sensor 1)
Explanation:
The powertrain control module monitors the oxygen sensor heater. The computer has recognized a failure in this ciricuit.
Probable Causes
1. -Oxygen sensor defective
2. -Poor connection at oxygen sensor
3. -Check circuit-fuse
the heater core for a 2002 Mitsubishi Galant is located behind the fire wall under the dashbord in the center the heater core for a 2002 Mitsubishi Galant is located behind the fire wall under the dashbord in the center
Usually a heater core problem.
Trouble code P0135 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 1)
if you are refering to a/c igt is located in the heater box inside the vehicle
Replace the heater control valve motor, a dealer part, costs around $166.00.ish
Heated oxygen sensor heater circuit malfunction (bank 1, sensor 1): Open or short in heated oxygen sensor heater circuit Heated oxygen sensor heater malfunction (Haynes Repair Manual)
O2 sensor heater circuit malfunction, Bank 1 Sensor 1.
The oxygen sensor is "done". It should be replaced.
It's a much better idea to replace it. You can try the radiator flush, but no guarantee.
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
Trouble code P1155 means: A/F Sensor Heater Circuit Malfunction
Bank 2, sensor 1, O2 sensor heater circuit malfunction.