Question about 2001 Toyota Sienna

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2001 toyota sienna 02 heater circuit bank 1 sensor 2

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  • Toyota Master
  • 17,970 Answers

Sound like a DTC P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)

A code P0141 may mean that one or more of the following has happened:
* open or short to ground in the wiring harness
* O2 heater circuit wiring high resistance
* O2 heater element resistance is high
* Internal short or open in the heater element

Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

Posted on Mar 16, 2011

  • ZJ Limited
    ZJ Limited Mar 16, 2011

    Current amperage in the rear heated oxygen sensor heater circuit is out of the normal range. (An improper voltage drop signal is sent to ECM through the rear heated oxygen sensor heater.)

    The rear heated oxygen sensor (or sensor 2), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank.

    Even if switching characteristics of the heated oxygen sensor 1 are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal from the heated oxygen sensor 2.

    This sensor is made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions.

    Under normal conditions the heated oxygen sensor 2 is not used for engine control operation.

    Symptoms:
    - Engine Light ON (or Service Engine Soon Warning Light)
    - High Fuel Consumption
    - Excessive Smoke from Exhaust

    Possible causes:
    - Harness or connectors (The sensor circuit is open or shorted)
    - Rear heated oxygen sensor (Bank 1) may be faulty

    Also could check this link information about Oxygen Sensor locations.

    Hope helps.

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Needdiagnosis on 02 toyota siena le 3.0 have problem codes p1135,po141


3.0L V6

Sienna
wild guess, the 1MZ engine?



141 fed code is. (it means B1S2 heater is bad,or wire to it cut or shorted.) below is fSM spec. worsd.





HO2S-12 (Bank 1 Sensor 2) Heater Circuit Malfunction








Number of Trips to Set Code: 2

Trouble Code Conditions:

Engine started, engine running, and the PCM detected the HO2S-12 heater current exceeded 2 amps, or that it was 0.25 amps or less.

Possible Causes:



  • * HO2S heater control circuit is open, shorted to ground or power


  • * HO2S heater power circuit is open (check power from the relay)


  • * HO2S heater is damaged or has failed


  • * PCM has failed



then the factory code p1135 same deal,same reasons B1S1





A/F Sensor-11 (Bank 1 Sensor 1) Heater Circuit Malfunction








Number of Trips to Set Code: 2

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




bar stool answer.

both bank 1 senors (oxygen) are bad. if wires are good.



easy answer ,no?



the PCM never lies. the current IS ILLEGAL,(BAD)

the why takes , inspection and ohms checks , FSM shows this..



your next question is where is bank 1,

its on cylinder 1 side.

your next question is , where is cylinder 1,

it the cylinder that sticks out further to crank front pulley.



front 134

front 246

Feb 27, 2014 | Toyota Sienna Cars & Trucks

1 Answer

Why the codes po125 & po135 &po155 keep coming back?


Hi there:

DTC P0125 - Insufficient Coolant Temperature For Closed Loop Fuel Control

The simplest thing to do is to reset the code and see if it comes back.
If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty ECT sensor, or a low coolant level).


DTC P0135 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
or
DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

A code P0135 and P0155 may mean that one or more of the following has happened:

  • O2 Heater element resistance is high
  • Internal short or open in the heater element
  • O2 heater circuit wiring high resistance
  • open or short to ground in the wiring harness

In order to solve just...
  • Repair short or open or high resistance in wiring harness or harness connectors
  • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)


  • Hopoe this helps.

    Aug 28, 2012 | 1999 Toyota Sienna

    1 Answer

    Code po161 which is bank 2 sensor 2


    That sensor bank 2 is the 02 sensor that monitor thhe catalytic convertor more than likey when you get a code heater circuit its a failed 02 sensor itself so a replacement is to replace the 02 sensor on the second bankcansmo_155.gifcansmo_156.gif

    Aug 29, 2011 | 2001 Toyota Highlander

    1 Answer

    My 96 nissian maxima turns off when driving down the road i try to turn the key ,lights in dash on horn blows but will not startcould it be alternater ,or what how does the 02 sensor go by functioning ...


    As of 1996,all cars sold in the US were required to have an OBD-II computer interface port.
    You may want to go to Advance Auto Parts, AutoZone, or Pep Boys, and get a free read
    of the code(s) that you computer may be posting to help with your diagnosis.

    The code coming from your vehicle's computer may be one or more of:


    P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
    P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
    P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
    P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
    P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
    P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
    P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
    P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
    P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
    P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
    P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
    P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
    P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
    P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
    P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
    P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
    P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
    P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
    P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
    P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
    P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
    P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
    P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
    P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
    P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
    P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
    P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
    P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
    P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
    P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
    P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
    P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
    P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
    P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
    P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
    P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

    Note: "Bank 1" is the side of the engine with cylinder 1. "Bank 2" is the other side.

    P0300 - Random/Multiple Cylinder misfire detected
    P0301 - Cylinder 1 misfire detected
    P0302 - Cylinder 2 misfire detected
    P0303 - Cylinder 3 misfire detected
    P0304 - Cylinder 4 misfire detected
    P0305 - Cylinder 5 misfire detected
    P0306 - Cylinder 6 misfire detected
    P0307 - Cylinder 7 misfire detected
    P0308 - Cylinder 8 misfire detected
    P0313 - Misfire detected with low fuel


    Maximas with the VE30DE and VQ30DE engines use a distributorless ignition system that is controlled by the Engine Control Module (ECM). The ECM receives a signal from the crankshaft sensor (the CPS - Crankshaft Position Sensor), and processes the signal based on inputs
    from other various engine sensors, including the Oxygen sensor.
    (this is the role of the O2 sensor in ECM operation).
    Then the ECM sends signals to each of the individual coils in the proper firing order.
    This system is more efficient than a distributor, and has fewer moving parts. The high voltage coils are directly attached to each spark plug, allowing a higher energy spark within the cylinder. A high energy spark means a faster, more thorough burning of the air/fuel mixture, which produces more power and lower emissions.


    SECONDARY SPARK TEST - works for all cars, including Maxima.


    1. Remove the spark plug.

    2. Install the spark plug to the ignition coil/coil pack, then attach the coil wiring.

    3. Ground the plug at a good ground location on the engine.

    4. Crank the engine and check for spark.

    5. If spark occurs, the ignition system is functioning properly.

    6. If no spark exists, test the ignition coil/coil pack, power transistor and related wiring.

    ----------------------------------------------------------------------------------------------------------------------------
    HEI Ignition Spark test - works for all cars, including Maxima.

    The next level test you may want to try is a HEI (high energy ignition) spark tester kit. Cost is
    about $30 at most auto parts stores. Harbor Freight Tools sells a chinese equivalent for about $16.
    Place the spark tester on each of the spark plugs, and watch as the little light in the tester will
    light up each time the spark plug is fired by the computer. You can actually see weak or
    intermittent sparking as the motor runs - you can tell by the relative strength of the light as
    you compare the intensity and duration of the light across all 6 cylinders.

    If your problem were the alternator (or its built-in voltage regulator), your battery would not be
    getting a proper charge, and you
    wouldn't be able to start the car after a drive, since the battery would have been drained during the
    drive - normally, the alternator will both charge the battery and run all electrical
    features of the car during a drive.

    To test your alternator, place your DMM (digital multimeter) across the battery terminals while the
    car is running - it should read 13.5VDC to 14.5VDC. With the car off, you can test your battery
    voltage with the same DMM - it should read 12.65 VDC (for a fully charged battery).

    Alternatively, you can take your car to Advance Auto Parts, AutoZone, or Pep Boys, and they'll
    attach their "charging system tester" to your car and give your car a nice test for free.
    I do this with my customers' cars just to get that nifty printout of the problem. Its nice
    to show a vehicle owner somethng in black & white when I'm recommending a new charging
    or ignition system component (some of which can be a bit pricey).

    Jul 15, 2011 | 1996 Nissan Maxima

    1 Answer

    Im getting code P2253 on my 04 Saturn vue with 3.5l V6. Anyway to tell which O2 sensor it is? Thxs Bill


    P0804 is the highest OBD-II trouble code.

    Here's your Oxygen sensor codes.

    P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
    P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
    P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
    P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
    P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
    P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
    P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
    P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
    P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
    P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
    P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
    P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
    P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
    P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
    P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
    P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
    P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
    P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
    P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
    P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
    P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
    P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
    P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
    P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
    P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
    P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
    P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
    P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
    P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
    P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
    P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
    P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
    P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
    P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
    P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
    P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

    Note: "Bank 1" is the side of the engine with cylinder 1. "Bank 2" is the other side.

    Jul 03, 2011 | 2004 Saturn VUE

    1 Answer

    Hi. I need help. What do you call the sensor p1135 of a Sienna 2001?


    Air/fuel sensor bank one sensor one heater circuit,you ll need a new one

    May 01, 2011 | 2001 Toyota Sienna

    1 Answer

    Where is an "02 sensor heater circuit bank 1


    the O2 bank 1 sensor 2 its located on the passenger side after the catalyst converter, you will see two sensors in this side of the exhaust its the second sensor

    Feb 10, 2011 | Ford E-150 Cars & Trucks

    2 Answers

    I have a 2001 Toyota Sienna with a P1135 code


    P1135 (for Toyota) means A/F Sensor Heater Circuit Malfunction Bank 1 Sensor 1 (Set when the heater operates, heater current exceeds 8A or heater current of 0.25A or less).
    The A/F sensor contains a ECU-controlled heater. At start-up, the heater helps warm the A/F sensors to quickly operating temperature. With minimal exhaust gas flow, the heater keeps the A/F sensor from cooling down.

    Sep 17, 2009 | 2001 Toyota Sienna

    1 Answer

    2001 Sienna VSC/Trac/Engine Light


    Toyota Specific Trouble Codes
    P1135 Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)
    If you have changed the proper sensor then you may need to have the cam shaft looked at.

    Dec 16, 2008 | 2001 Toyota Sienna

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