P1135 Toyota Code - Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1

Does the VSC light come on with the Check Engine....is this a default indicator.....tried battery disconnect but VSC comes back on

What model and year is your Toyota? You may have a different problem that is triggering the VSC light.

2001 Avalon XLS...just got done changing o2 sensor code was p1135, tried unhooking battery but engine and vsc come back on

2001 avalon changed from universal bosch to a densco,,,,,,still have cel and vsc light coming on after reset

i had p1135 code on 2001 tocoma 2.7 changed 02 sensor closest to engine left battery unhooked for 48 hours advanced auto 173.99 light out and gas milage back to normal and idles great....FIXED

You can ignore the VSC light with CEL. What I have read and found to be true with my 01 Avalon is that any time there is a CEL condition, VSC will be disabled by the computer. Apparently VSC isn't considered reliable if there is any sensor fault. Fix the problem causing the CEL and the VSC light will go away too. VSC light without CEL is another matter.

I have es300 . 99 .
Code p0125. . p1135

You should replace the Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1,

01 tacoma 4x4 3.4 v6 p1135 pops up replaced b1 s1 o2 sensor, runs shittyer. now what?

tacoma random backfires out of intake and has a stalling problem after repair rpm0-1 hardly moves the truck and then bogs the rest of the way up there. thinking vacuum, ecm or mayve air fuel sensor or mass airflow?

Sounds more like a Mass Air Flow (MAF) sensor. You should start by cleaning the sensor and changing the air filter.

Where is this sensor located on a 2002 RAV4? Also where is sensor for P1155 located? I have both DTCs. Thanks

Here is the location of the sensors:

sorry if you were providing a photo or diagram i don't see it.

ok i see it know -- thank you!!!

I have a P1135 and P1155 check engine code indicating that I have two faculty upstream a/f sensor... After replacing them with OEM sensors from rock auto, and clearing the codes. I could still have a check engine light with these codes of P1135 and P1155. Any suggestions to fixing and solving this problem?

Are there any intake or exhaust leaks? What model and year is your Toyota?

I have 2002 camry replaced both o2 sensors and the mass air flow sensor but still have check engine light code P1135

Does your Camry have 4 or 6 cylinders? are there any exhaust leaks near the sensors? any aftermarket exhaust parts?

I have 2001 Toyota Rav4 with P1135 code. I had replaced the B1 S1 on the driver side, top, with a after-market part from Amazon. After two weeks, P1135 returns. I have tried to reset it a few times and it won't go away. I have measured the heater resistance at 1.3 Ohms. Does anyone know why? I just purchased a Denso 234-9023 from Amazon and see if it solve the problem.

Sensor resistance specifications:

68 F = 0.8-1.4 ohm
Above 68 F = 1.8-3.2 ohm

What was the temperature when you tested?

It is 4 cylinders as for exhaust leaks or after market parts not sure the car was bought used and had to replace the engine but this was done by a mechanic not me

What model and year? I need to check the factory service manual for more information and I need to know the model and year.

Its a 2002 camry but the engine is from a 2008 scion tc

Unfortunately, other than checking for intake or exhaust leaks there is nothing else I can recommend. One thing I know is that the 08 Scion engine uses A/F sensor and the 02 Camry uses regular O2 sensors

Hi I have a 2001 Lexus ES 300 with P1135. This appeared after changing oil 5/W30 Pennzoil synthetic and Fram oil filter, also changed the rear brake pad and bled the rear brakes. As soon as I started the car about 3-5 minutes the CEL and Traction control light came on. P code is P1135. I cleared the code several times and it keeps coming back.

I went ahead and rechecked the rear brakes area, bled the front brakes just to be sure. I disconnected the battery and left it off for several hrs. CEL and Traction control light returns a few start cycles later.

The A/F Sensor has nothing to do with the repair you did, I think is just pure coincidence.

2000 Avalon XLS P1135 TOYOTA - Air/Fuel Ratio Sensor Heater Circuit Response Malfunction and P1155 Sensor Heater Circuit Malfunction.
Originally I had (P0300, P0301, P0303, P0305, P1325, P0171, P0172 which are now corrected) along with the P1135 and P1155 codes which still remain.
I have changed all three O2 sensors and still getting these codes.
I have EQ 0.997on both B1S1 and B2S2 and 3.298v on both B1S1 and B2S2 Question is, is there a fusible link in the harness somewhere that could be causing the issue?
I have had to replace the fuel pump and injectors, cam position sensors and oil control valves, along with the pig tails on these parts due to Toyota mechanics stripping the wires to test the system in the past.
There are not any intake or exhaust leaks I replaced all intake gaskets when I changed the timing chain, that's when I found out the engine is a salvage engine that the previous owner had installed.
From my understanding a squirrel chewed up the wiring with the previous owner also.
Or is it time to push this piece off a cliff? Or give it and me a metal of honor for all its been through and put me through?

Location of bank 1 sensor 1 on a 2002 Toyota Avalon

Attached to the manifold on the back of the engine.

according to my book the heater should be 11-16 ohms

Hi
I have 2002 toyota camry v6 with p1135 & p1155 codes i have replaced both b1s1 & b2s1 with denso oem parts but still after i clear the codes they come back again within 1 minute. Any suggestions regarding this really appreciated

If both codes are set, the there must be a problem with the sensor fuse or relay. Start by checking the fuse (25 Amps)

Thank you for your feedback. I have checked this. After replacing this fuse also i am seeing same problem.

Next step is to check for power at the Sensor and the Sensors relay (swap relay if to test)

I tried that as well but it still comes back within 30 sec after clearing it

Relay is OK, but do you have power at the Oxygen Sensors? You should suppose to have battery voltage at the sensors with the ignition senor ON. If you don't have power, then there is a problem with the wire from the fuse to the sensor. If you do have power, then there is a problem with ECM or the new sensors.

check your rear cat converter for back pressure. I had a front converter go bad and plug the rear converter. this caused the sensors to read wrong and dump a rich fuel mixture in the cylinders and soot up the sensors. I also had a mutable random misfire which I cured by running a ground wire from the computer to the battery. you could always use seafoam the throttle body and oil then change oil. everything affects the O2 sensors from crank and cam position sensors the oil control valves maf sensor it could even be the camshaft actuator causing the issue. PS there are approximately 68 issues that can give a O2 sensor reading.

my 2002 Camry XLE V6 has a CEL on with a P1135 code . will this cause me to fail an Ohio Aims test?

Yes, you vehicle will fail the emissions test if you have bad sensor.

Tengo una luz y me dice que está malo el señor p1135
De una toyota4 runer.año01

Si tiene el codigo P1135, entoces le tiene que cambiar el sensor del oxigeno (Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1).

Toyota Camry v6 3.0 2006
Code P0125, P1125 P 1155 and locations please.
Thanks

P0125 TOYOTA - Insufficient Coolant Temperature for Closed Loop Fuel Control
Read more: https://www.autocodes.com/p...

P1125 TOYOTA - Throttle Control Motor Circuit Malfunction
Read more: https://www.autocodes.com/p...

P1155 TOYOTA - Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 2 Sensor 1
Read more: https://www.autocodes.com/p...

Thank you for your prompt response. Could you please tell me the location of the problems please and i have a P1135 code instead of P1125. Sorry

Code P1135: Air/Fuel Ratio Sensor Bank 2 Sensor 1 (Number 1 on the image)
Code P1155: Air/Fuel Ratio Sensor Bank 1 Sensor 1 (Number 2 on the image)
The P0125 could be trigger by both Air/Fuel Ratio Sensors.

The sensors are before the catalytic converters (between the engine and catalytic converter on the exhaust tube) Here is the only image I got, I hope that helps:

Thank you so much. Will look into that.