20 Most Recent 2011 Toyota Sienna Questions & Answers

Can you hear the motor running when you spray? If you can, then the problem is likely partially plugged sprayers. If not, then the motor itself is shorting out. It is unlikely to be the fuse (if it is 'loose' then it isn't seated and the sprayers wouldn't work at all).

2011 Toyota... | Answered on Oct 04, 2017

This fix is for 2011 rear manual door.
You may experience some light turns on while driving over a bump or take a sharp turn. Your rear hatch indicator said door is opened.
The courtesy switch is located inside the rear hatch latch assembly. Nothing more but a simple thin lever line leave spring that contacts the ground pole to tell body ECU the door is opened.
The spring is so thin that it bent out of shape overtime therefore when you close the door it doesn't get pushed away from the ground pole far enough caused intermittently false door open alarm.
ALl you have to do is to remove the door latch assembly. Separate the actuator from the latch. Look into the latch you would see a copper like spring one end rests onto the ground pole. Jam your screw driver between the latch housing and spring lightly pride it away from the pole to unbend it. . Manually close the latch and look to see if it gets pushed away from the pole. If it doesn't try to unbend it again.
If you have or know how to use a ohm meter than check for continuity between spring and it housing. You should get 0.3-1.0. Ohm when the latch is open and no continuity when you closed the latch.
Any question shoot me a email [email protected]

2011 Toyota... | Answered on Jul 21, 2017

If all speakers quit at once i would suspect the amplifier has quit. Depending on the specific stereo system it may be inside the radio or an external amp.

2011 Toyota... | Answered on Oct 10, 2016

OBD-II code P1603 indicates an issue with TCU communication.
There are communications that exist between the engine control module, or ECM, and the transaxle control module, or TCM. This communication is done through a control area network, or CAN. With the communication of the CAN, an independent pin and wiring is needed to receive a signal that includes sensor information from the ECM. The more information there is to communicate, the more wiring that is needed. When it comes to CAN communication, all of the information communicated is done alone control modules like the ECM and TCM using CAN lines. When there is a problem with these lines, the ECM will detect the problem and store a P1603 trouble code; the storing of the trouble code is what causes the SES or check engine light to illuminate on the dash.
Possible causes of trouble code P1603 include:
  • Faulty transaxle control module (TCM)
  • Faulty engine control module (ECM)
  • Harness running from the TCM to the ECM has a short
  • There is a poor electrical connection between the TCM and ECM
Diagnosing the exact cause of the problem should always begin with a visual inspection that could reveal bad wiring, loose connections, or damaged parts. From there, it is a matter of running down the list to determine what needs to be replaced. In general, a bad ECM will cause a loss of power, poor fuel economy, and stalling engine. While a bad TCM will have more prevalent transaxle issues like erratic shifting
P1605 and P1605
These codes are indicating a starting problem and rough idling. Code p1604 is a very vague code and diagnosing it without having a symptom is very complicated. And code p1605 is rough idling which means that the computer have noticed a rough idle situation usually this code is accompanied by other codes or if it's alone then I would suspect a fuel pressure issue. These two codes involve diagnosis and we'll need to dig into this problem deeper to find out what's causing them, Unless you are an experienced technician who need assistance then I will suggest that you take your vehicle to your local toyota dealership and they should be able to find the problem.

2011 Toyota... | Answered on Apr 29, 2016

No there is not. You need to take it to a garage that does electical repair do not let someone fix this problem you woll end up with a worse problem then you have now. I can not stress enough use the dealer or a good garage that does electrical work.

2011 Toyota... | Answered on Sep 24, 2015

Easier way- Let vehicle sit overnight and keep bottles of new fluid outside at the same temperature
1. open fill plug- always do this first-if it is stuck you won't look stuped not being able to add fluid.
2. Place a clean drain pan under the transmission
3. open drain plug
4. Remove the stand pipe inside the drain hole.
5. Let all fluid drain for a while
6. Replace the stand pipe and drain plug
6. Carefully, precisely measure the dirty fluid in the pan. This is key. Get the measure down to the ounce if you can.
7. Using a funnel and vinyl hose pour precisely the same amount of new fluid into the transmission. As long as the new fluid and old fluid are at the same temperature, you do not have to worry about thermal expansion.
8. Start engine, go through gears, and drive away.
Do this two or three times to get most of the fluid changed. I find a single change makes a big difference.

2011 Toyota... | Answered on Jul 29, 2015

toyota sienna 2011 model has a sealed transmission that's why you cannot find dipstick. the transmission fluid is rated up 100k miles that you don't need to check the fluid.

2011 Toyota... | Answered on Jul 29, 2015

there are backup lights(bulbs) that have the warning sound built into them that you can buy from auto supply stores. to find the power wire if you use a test light at the socket wires and the car is in reverse with key on engine off you will find the wire. one wire will be power and the other ground.

2011 Toyota... | Answered on Jul 30, 2014

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