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2001 TOYOTA 4 RUNNER HAS A CODE 1135 BANK 1 SENSOR 1. DO I NEED TO REPLACE FRONT AND REAR SENSOR OR 2 REAR SENSOR. HOW MANY SENSOR IS THE 4 RUNNER HAVE. WHY EVERY TIME I ERASE THE CHECK ENG LIGHDT CODE 1135, THE OTHER LIGHTS LOOK LIKE EVS OR VVS TURNS "OFF" AT THE SAME TIME AND WHEN THE CHECK ENG LIGHT CODES 1135 COMES "ON" THE EVS OR VVS ALSO COMES ON. PLEASE HELP

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According to the Service Manual for a 2000 5VZ-FE (same engine, I think), the P0125 code actually has nothing to do with the coolant temp, even though that's the name of the code!
Possible causes for P0125 include a problem with air flow sensor Bank 1, Sensor 1 (that's a heated oxygen sensor, I believe), fuel pressure, or an injector.
P1135 is a malfunction in the heater for the air flow sensor Bank 1, Sensor 1, indicating that either the sensor's heater is bad or the circuit supplying power to the heater has a problem.
Together, it sounds like the sensor. __________________

Posted on Aug 06, 2010

  • Rudy Cordova
    Rudy Cordova Aug 06, 2010

    I JUST WANT TO KNOW IS WHICH 02 SENSOR NEED TO BE REPLACE AND WHERE IS THE SENSOR LOCATED. SINCE YOU MENTION CODE P0125 , IS THE COOLANT SENSOR IS BAD THAT IS WHY THE CODES 1135 KEEP SHOWING. WHICH SENSOR IS NEEDED TO BE REPLACE, THE COOLANT SENSOR OR THE OXYGEN SENSOR. I AM COMFUSE.

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Part no code p1135


is this a suzuki or a toyota? or a frenza that is really a POS Daewoo?
wow ! no car even stated only a maker, Suzuki. ouch.
and worse ,no year, ouch.
p1135
(my worst guess ever....)
P1 means mfg code.
1135 is oxygen sensors reading wrong, (they can be good)
what engine? suzuki has 56 engines.
the engines have 2 to 4 oxygen sensors.
best i can tell its the 02 heater is bad(wires cut?)
best i can tell it is B1S1 (left bank front sensor) bank 1 sensor 1.?
post car make, car brand model and engine?
and for sure displacment or at least the number of cylinders.
i can then post the full FSM spec, on 1135s

Nov 28, 2013 | Suzuki Cars & Trucks

1 Answer

2001 Toyota Sequoia Oxygen sensors


No the wires won't likely be the same length

The front upstream sensors, are not the same
Part # as the rear,downstream monitor sensors

Go to Rock Auto.Com & look up your oxygen sensors
I would get the NTK or Bosch,if they have that

You do not replace the rear sensors, until they fail

You replace the front ones at 100,000 miles or sooner,
if they fail

Jun 02, 2012 | 2001 Toyota Sequoia

3 Answers

P1155 code for a toyota rav4 2002, engine lite came , took to parts store, put on diognostic machine , this code came up. wat does it mean?


Bank 2 sensor 1 Air fuel sensor heater circuit. This sensor is NOT an O2 sensor, though it operates like one and in the same location(in exhaust stream). Basically the PCM detected that the heater circuit was drawing excessive amperage or no amperage. Usually it's a bad a/f sensor and replacing it will fix it, however, it doesn't rule out the possibility of damaged wiring or an open in the power or ground circuit, or a short in the power or ground circuit.

Hope helps (remember rated this).

Aug 17, 2010 | 2002 Toyota RAV4

1 Answer

Error P0125 and 1135 on obd2 reader


125 insufficient coolant temp for closed loop 1135 sensor heater circuit response bank 1 sensor 1--both can be caused by same problem code can go off for insufficient warm up -low coolant level-thermostat leaking/stuck open or faulty sensor reset code and see if problem returns code sometimes known to go off if vehicle didnt warm up before being turned off short distance drive

Oct 21, 2009 | 1999 Toyota Camry

1 Answer

How do I fix a bank2, 02 sensor?


just a quick note: bank 2 is LEFT side (drivers) on a rear wheel drive vehicle ,on front wheel drive vehicles it would be the front side when looking down from the front of the vehicle ,Sensor 2 is after the cat converter! if you replace that sensor, clear the codes or have someone clear them for you and you should be all set.
the 2 of bank 2 is the 2nd oxygen sensor that is located after the catalytic converter.usually closer to the tailend of the header pipe.
The sensor I believe you are looking for is in the exhaust pipe or exhaust manifold, usually the right bank which is on the right side of the car (driver is left), or close to the firewall if engine is mounted sideways. Some cars are equipped with a sensor behind the catalytic converter that tells the computer the HEALTH of the converter only. It has nothing to do with running of the engine per say.
Bank 1 is which ever side has cylinder 1. It could be left or right. Bank 2 would be the other side. Bank 1 sensor 1 would be before the catalytic converter. Bank 1 sensor 2 would be after the converter. The same applies with bank 2.

Oct 10, 2009 | 2001 Toyota RAV4

2 Answers

Trouble code meanings for 2000 toyota avalon


the bank 1 is in the front of your car close to the radiator, the other one is the bank 2. I think you have to replace the bank 1 and bank 2 sensor and the po115 is the coolant temperature sensor, after you replace all these sensors and have the machanic reset or turn off the CHECK ENGINE light. check with the emmission inspector before you begin to replace all these parts. good luck

Jul 29, 2009 | 2000 Toyota Avalon

3 Answers

TOYOTA TACOMA 2001 PROBLEMS


That code is for your Air/Fuel Sensor Heater Circuit Malfunction (Bank
1 Sensor 1). Basically that circuit is either getting to much current or not enough. That can be cause by a couple things i can think of off the top my head like open or short in that circuit, or a faulty Engine control Module (ECM), Or Possibly your A/F sensor heater could be faulty. Without looking at the data and testing your truck its hard to be exact but i hope this helps.

Jun 14, 2009 | 1999 Toyota Camry

2 Answers

Code: P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1


is this a 4 or 6 cylinder?
if a 4 cylinder it will only have 2 o2 sensors
V6 will have 4 o2 senors which the sensor will be the right side of the engine first sensor.
1st sensor on exhaust, I recommend if you change one change all, as this will make the computer when it rechecks the system you have all clean/fast responding sensors.

if you have a slow response it means the sensor is dirty and not reading well, which is usually caused by minor misfires that the engine computer dismisses, so a tune up would be recommended too.

May 06, 2009 | 2001 Saturn SC

1 Answer

I have problem with code 1126 (toyota 4 runner 2001


Manufacturer Specific Codes

P1100
BARO Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1120 Accelerator Pedal Position Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1121 Accelerator Pedal Position Sensor Range/Performance Problem

P1125 Throttle Control Motor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1126 Magnetic Clutch Circuit

P1127 ETCS Actuator Power Source Circuit

P1128 Throttle Control Motor Lock

P1129 Electric Throttle Control System

P1130 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1133 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1150 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 2)

P1153 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 2) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1155 Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)

P1200 Fuel Pump Relay Circuit

P1300 Igniter Circuit Malfunction - No. 1

P1305 Igniter Circuit Malfunction - No. 2

P1335 No Crankshaft Position Sensor Signal - Engine Running

P1349 VVT System

P1400 Sub-Throttle Position Sensor

P1401 Sub-Throttle Position Sensor Range/Performance Problem

P1405 Turbo Pressure Sensor Circuit

P1406 Turbo Pressure Sensor Range/Performance Problem

P1410 EGR Valve Position Sensor Circuit Malfunction - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1411 EGR Valve Position Sensor Circuit Range/Performance - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1500 Starter Signal Circuit

P1510 Boost Pressure Control Circuit

P1511 Boost Pressure Low

P1512 Boost Pressure High

P1520 Stop Lamp Switch Signal Malfunction

P1565 Cruise Control Main Switch Circuit

P1600 ECM BATT Malfunction

P1605 Knock Control CPU

P1630 Traction Control System

P1633 ECM

P1652 Idle Air Control Valve Control Circuit

P1656 OCV Circuit

P1658 Wastegate Valve Control Circuit

P1661 EGR Circuit

P1662 EGR Bypass Valve Control Circuit

P1700 Vehicle Speed Sensor '2' Circuit Fault

P1705 Direct Clutch Speed Circuit Fault

P1765 Linear Shift Solenoid Circuit Fault

P1780 Park/Neutral Position Switch Malfunction (Only For A/T)

Back To Top Of Toyota Check Engine Light Codes Page

Mar 21, 2009 | 2002 Toyota 4Runner

1 Answer

Catalytic converters


If you are going to change the convertors I would just replace the first one closest to the engine. But when a computer code says "bank" they usually are refuring to the Oxygen sensor that is there , they are classified as bank 1 and bank 2. 1 being closest to the engine and 2 being farther down the exhaust. If its a computer code that told you bank 1 you might need to look at your oxygen sensor instead of your catalitic converter.

Dec 04, 2008 | 1996 Toyota Camry

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