Question about 2002 Toyota Highlander

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I need an air-fuel heater sensor engine code P1135. But I dont know which one it is. There are 3 Is it the one in front of converter or behind or the one at the manifold.

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CODE P1135 - HEATED OXYGEN SENSOR HO2S - LH FRONT HEATER CIRCUIT MALFUNCTION.

Posted on Nov 06, 2010

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Which O2 sensor is needed for The code P1135 tOYOTA aVALON 2002


code p 0035 refers to heated oxygen sensor(HO2S)--LH front ---heater circuit malfunction===causes ---wiring--HO2S--air induction system---fuel pressure ----injector/s---ECM
heated oxygen sensors are always located in the exhaust manifold/pipe before the cat converter
they control the fuel/air ratio parameters for the ECM to get best burn of the mixture
Oxygen sensor (O2) is always after the cat converter and sets the parameters for the cat burn off

Dec 10, 2016 | 2002 Toyota Avalon

1 Answer

How many parts have the P1135 diagnostic code on a 2003Toyota Rav 4? I have replaced the air/fuel sensor and the code P1135 comes back on. I'm being told now that it's 2 sensors in the a/c


The air/fuel sensor and the a/c are two different entities. P1135 is the bank1 sensor 1 air fuel heater circuit code. If you have a four cylinder this sensor would be before the catalytic converter. Since this is a heater circuit issue I would check fuss to wake sure the heater fuse, if one is present, is not blown. Also what brand of sensor did you install? Did you clear the code with a scan tool after you installed the new part.

Aug 05, 2012 | 2003 Toyota RAV4

2 Answers

I have a p1135 code does that mean it the o2 sensor cause i have change the mass air sensor


Code P1135 is a vehicle specific code for selected Toyota vehicles - it really helps to know what car you are working on...Year, Make, Model, Engine Size, Automatic or Manual Transmission, etc. There may be Technical Service Bulletins that apply to your vehicle that cover things like reprogramming the engine controller to correct this code, etc. Nobody can give you that information if they don't know what kind of vehicle we are talking about.

In general, the code description for code P1135 is "Air Fuel Ratio Sensor Circuit (California Emissions )"
The possible causes are
1. Open or shorted Air Fuel Ratio Sensor (AF) circuit
2. Faulty AF sensor
3 AF sensor heater or heater circuit shorted or open
4. Engine Control Module (ECM) Fault

The Mass Airflow Sensor (MAF) cannot cause this code - this is a "CIRCUIT" code, not a not a "LEAN" or "RICH" Oxygen Sensor (or AF Sensor) code. The MAF can only cause lean or rich codes.

Most of the time, this code is caused by the sensor itself, however, as I mentioned earlier, there are Technical Service Bulletins for several Toyotas that involve reprogramming of the Engine Computer.

Mar 26, 2011 | Toyota Pickup Cars & Trucks

1 Answer

Code p1130 p1135 p1150 what are this ??? Thanks


p1130= bank one sensor one, Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (sensor is located underneath near the firewall) p1150= bank two sensor one, Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Directly behind the radiator) p1135=bank one sensor one, Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank one sensor one sensors run around $206 Bank two sensor one sensors run around $150
basically its o2 sensors if your mechanically inclined its a good weekend job to tackle yourself and safe a couple hundred dollars in labour, you would need to invest in an o2 socket and some pbblaster penetrating lubricant to get them out..hope this helps you and dont forget to rate if it does help thanks

Jan 07, 2011 | 2001 Lexus RX 300

2 Answers

Check engine light on reads p1135


On Toyota models the error code meansthe problem is as described below

P1135 Air/Fuel sensor heater circuit response (bank 1 sensor1).

It indicates the most common problem with your O2 sensor . Bank ! sensor indicates the upstream O2 sensor. It might be faulty and needs to be replaced.

Nov 15, 2010 | Toyota RAV4 Cars & Trucks

1 Answer

Error code P 1135. what part needs to be replaced?


P1135. Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1).

The P1135 code on your Toyota is Air fuel ratio sensor - heater circuit malfunction. Basically the problem there will be with the air/fuel ratio sensor (on other vehicles it is refered to as an O2 oxygen sensor), or the wiring/connectors leading to it. It could also be a problem with a fuse or relay on the heater circuit. Again, not a real difficult problem to solve.

Now, to specifically answer your question. I'm not familiar with the inspections in New Jersey, however just fixing the P1135 code will not cause the check engine light to stay off because there are other unrelated codes. If the code P1135 was causing the other problems then perhaps fixing that code would fix the others, but that's not the case here. The reality is you'll need to have all the problem areas looked at (IAT sensor, MAF sensor, Air/fuel ratio sensor) and repaired in order for your engine light to stay off. Normally if there are codes stored a vehicle cannot pass inspection. I would get a second opinion from another local mechanic as what you've been told may not be 100% correct.

Good luck.

Oct 02, 2010 | 2001 Toyota Sienna

2 Answers

How to change a fuel bank sensor #1 code p1135 on


P1135 Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1) ask any auto parts store what the fix is.

May 17, 2010 | 2002 Toyota Tacoma

1 Answer

My check engine light is on and I received code P1135, Manufacturer Control Fuel Air Metering is the defintion of the code. What parts do I need to get to fix problem myself?


Not sure where you got that definition for that code but this is what it is and means with possible causes for whichever motor you have:

Trouble Code: P1135 (2.4L L4 VIN - Auto)
A/F Sensor-11 (Bank 1 Sensor 1) Heater Circuit Malfunction Print this code dataprint_icon_codes.gif
Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details
Trouble Code Conditions:
Engine started, engine running, and the PCM detected the A/F Sensor-11 (A/FS-11) heater current was less than 0.25A, or that it was more than 8.0A at anytime during the CCM test.

Possible Causes:
  • A/F sensor heater circuit or ground circuit is open
  • A/F sensor heater power circuit is open
  • A/F sensor heater is damaged or has failed
  • PCM has failed

2001 Toyota Highlander - I4 - P1135, P1155


Trouble Code: P1135 (3.0L V6 VIN - Auto)
A/F Sensor-11 (Bank 1 Sensor 1) Heater Circuit Malfunction Print this code dataprint_icon_codes.gif
Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details
Trouble Code Conditions:
Engine started, engine running, and the PCM detected the A/F Sensor-11 (A/FS-11) heater current was less than 0.25A, or that it was more than 8.0A at anytime during the CCM test.

Possible Causes:
  • A/F sensor heater circuit or ground circuit is open
  • A/F sensor heater power circuit is open
  • A/F sensor heater is damaged or has failed
  • PCM has failed

2001 Toyota Highlander - V6 - P1135

Oct 21, 2009 | 2001 Toyota Highlander

2 Answers

My 02 toyota 4runner have code p1135


CODE P1135 AIR FUEL RATIO SENSOR HEATER OR CIRCUIT FAULT.THE AIR FUEL SENSOR AHEAD OF THE CATALYTIC CONVERTER.BASICALLY ITS THE UPSTREAM SENSOR LOCATED IN THE EXHAUST MANIFOLD.THIS IS THE PART YOU NEED IT LOOKS LIKE OXYGEN SENSOR .BUT ITS NOT.

Oct 06, 2009 | 2002 Toyota 4Runner

3 Answers

Getting code p1135 and p1155 on toyota rav4 2002


Here's what the codes mean:
P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1)
P1155 Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2

This is mainly related to the oxygen sensors. It maybe the sensors themselves or an open wire going to te sensors. They are mainly located on the exhaust pipe. One before and on after the catalytic converter.

Apr 15, 2009 | 2002 Toyota RAV4

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