02 sensor wiring on 2003 Toyota Corolla

Question edited for clarity, and add Maker.
Question moved to model category.

1995-97 Toyota Corolla Stereo Wiring

The12Volt https://www.the12volt.com > installbay > stereodetail
1995-97 Toyota Corolla Stereo Wiring ; Ground, Brown ; Illumination, Green ; Dimmer, n/a ; Antenna, Driver's Pillar ; Front Speakers, 5 1/4" Doors.

In the links

2003 Toyota Camry Car Audio Wiring Diagram - MODIFIEDLIFE

MODIFIEDLIFE https://www.modifiedlife.com > 2003-toyota-camry-ca...
Our 2003 Toyota Camry radio wiring diagram shows you all the 2003 Toyota Camry radio wire colors and what they do. Use our 2003 Toyota Camry stereo wiring guide ...

Toyota Camry SE 2003 - SYSTEM WIRING DIAGRAMS

Automotive Electricians Portal https://portal-diagnostov.com > 2020/05/02 > radio-to...
May 2, 2020 - RADIO - Toyota Camry SE 2003 - SYSTEM WIRING DIAGRAMS Radio Wiring Diagram, with Built-in Amplifier. Get Access all wiring diagrams car.

Over my head! Radio wiring 2003 Camry - Toyota Nation Forum

Toyota Nation Forum https://www.toyotanation.com > threads > over-my-he...
Jun 4, 2017 - The only difference between the Gen4 to Gen5 JBL harness that I know is there is an additional wire that comes from the car harness to the amp.

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posted now 3 times.
no engine stated (of the 3)
no symptoms stated. or job.
front or rear , oBD2 sensor not stated.
on your other post, i answred for all 3 engine
front 02 sensor B1S1.
all 3 engines, the ECU schematics on the 02 pins.

go back and read. your other posts.

A Corolla in snake skins..

my guess is you found out , all 02 use different color wires.
yes, that is true. why not name the new sensor makers name.
BOSCH?
but the harness colors are unique. on the car.
so when is this.???? 1.6L SOHC, or the DOHC?

here is a prizm link page, it shows how to get all this. data.

http://www.fixkick.com/PRIZM.html


no all things i life are free. sorry.

Rules of road. 02
there are 4 pins
the 2 heater pins are not polarized, can be swapped.
in fact BOSCH , is 2 black wires, here.
but what are the cars harness colors ok,, i spin 1.6L SOHC
for you, i log into alldata.com and look.
some cars have 2 kinds, Calif, or Federal, and if in Canada that too!

The 4AFE USA, 1995
a day late and a dollar short.
ok the 4AFE shows ONLY a 2 pin 02>so must not be 4A engine.
the 7A shows. 4pin. per below.
toyota color codes, here. (im iffy on toy codes)
BR -ground. O2 Cell minus pin 4 (brown)?
B-R 12vd to heater pin 2. (black & red stripe)
B , ox2 CELL plus, pin 1 (black?)
L-B , heater switched ground from ECU. pin1 (light blue?)

7afe

this is what i found for you

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensorwaveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Most likely, the aftermarket cat they installed is a high flow cat. This commonly causes issues with throwing that code on our cars. You can either have an OE cat installed, or just have the code deleted from the PCM by someone that has a tuner.
Good Luck

This all depends on if it is a factory or aftermarket radio ,

The first thing would be to remove the radio and test wiring, with key off the memory wire needs power, this wire should be yellow but may be a different color.

check all the fuses even the under the hood fuse box.

There are many types of aftermarket modules, some doing a simple lock/unlock, others also activating horns, lights, alarms, etc.
So I'd suggest searching for "how to wire car locking module," then checking out the results (including many YouTube videos).
However, you'll probably install the unit inside the driver's door panel, because that door's exterior lock and interior lock button give orders to the locks in the other three doors.
Then, use a circuit tester to identify:
--one wire that is always hot, whether the engine is on or off. This will usually be colored. This wire should be connected (use a crimp-on connector) to the power supply for your aftermarket locking module.
--a black (usually) ground wire, that should be connected to the ground wire on the module.
--one or more trigger wires running from the lock switch on the door. There are different types of trigger setups and different ways to connect them, so there may be some trial and error involved. When you've got everything hooked up, though, make sure the "lock" button on your remote makes the doors lock (and vice versa for the unlock button). If the commands are reversed, simply swap the control connections.
--if your new module also has the capability of making your horn sound and your headlights and taillights flash ... well have fun. You'll have to figure out how to hook up the wiring on the module to the headlight and taillight circuits, which won't be obvious or easy. Personally, I'd skip that part and be happy with the remote lock/unlock.

Your aftermarket radio should have color-coded wires which identifies power, ground, speakers, etc. most depaetment stores carry a radio harness adapter kit. This will connect to your radio's exact color coded wires, and will plug right in to your factory's wiring plug. And don't forget electrical tape.

If there is not the same amount of wires it will not work. I can tell you from past experience they may be cheaper but it will cost you in the long run. Do yourself a favor and get the correct O2 sensor for your car. You don't have to get the O.E. sensor from the dealer, you should be able to find a reasonably priced aftermarket sensor that will plug right in.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

91 toyota corolla radio wiring

i checked 2 resources and they match , have you tries this schematic , see if you have a match to your cars wiring . actually this code matched corolla 88-92 , and also i checked all models of corolla and it matched , and from looking at the connector this is the order they are in
lt green
pink
grey
blue/yellow
blue
voilet
brown
red
black
white
yellow

looking at the connector , the only thing i don't see is the green illumination wire . if this is not a match , please comment back , what your wires are , and i will match them . thanks

J5