Pcode 1155

[awakumr]

My 2001 Sienna just popped up with a 1155 error code. It say A/F Sensor Heater Circit Malfunction. Which O2 sensor is it.

[Qslim]

P1155 is a heater circuit malfunction on bank 2, sensor 1. That'll be the sensor in the manifold closest to the front of the car or the radiator (the easy one to get to).

[awakumr]

Thanks, I already got one on order to replace. I'll let you know how it goes.

[Qslim]

Do yourself a favor and spray the sensor down with some penetrating fluid or the like and let it soak in for several hours before you replace it. That will make sure the sensor doesn't seize in the manifold and ruin the threads.

[awakumr]

Recieved the sensor via USPS today at 2:00pm. Van up and running by 2:15pm. I used the anti-seize compound that came with the sensor. I ordered it from OxygenSensors.com for $170. The local toyota dealer wanted $253 for the sensor. Qlsim, thanks for your support.

[camlex]

from toyota, internet price was $110

[npcomplete]

Originally Posted by awakumr

Recieved the sensor via USPS today at 2:00pm. Van up and running by 2:15pm. I used the anti-seize compound that came with the sensor. I ordered it from OxygenSensors.com for $170. The local toyota dealer wanted $253 for the sensor. Qlsim, thanks for your support.

I have exact same code 1155, do you remember the part number?

[sma10]

Would appreciate if you could give the part #?

Here is some confusion with my Sienna 2000 XLE check engine light
I had P1135 code Bank 1 Sensor 1. Called Toyota dealer and they send me Air Fuel Ratio Sensor part # 89467-41011. After replacing the sensor the car again got a check engine light now with 1555 code(Bank 2 Sensor 1). However when I called another dealer he mentioned me that in case of B2S1 you would need the 89467-41011 and the part that is actually for B1S1 is 89467-41021.. My Question is there any difference between these 2 parts?

Also if you give the details on the part # It will be of great help to me...

Thanking in anticipation.

[sam_wynn]

B1S1 OR B2S1 are both A/F sensors. The only difference is the wire length.