P0155 code
#1
P0155 code
I just bought a 2001 xtreme blazer has 160k. I tuned it up and it runs great. I got a code p0155 heater malufunction bank 2 sensor 1. I replaced the pass side sensor before the Y with a standard brand green box. Never had a problem with their sensors. AC delco are hard to find in the stores everybody has that crap bosch stuff. Anyway the light didn't go off after I changed the sensor. Should it go off if the problem is fixed or must it be reset?
#2
RE: P0155 code
To start diagnosing this problem, I would have first swapped sensors side to side. If the code follows the sensor, then replace the sensor. Since we are past that, you have a decision to make. And that is is the new sensor good or is it a problem with the wiring.
#3
RE: P0155 code
What I was wanting to know is should the light shut it self off or does it have to be reset. I still have the other sensor and can swap it but it is a little dark out now.
#4
RE: P0155 code
It should go away if the fault is repaired. How long ago did you replace the sensor?
#5
RE: P0155 code
I just changed it tonight. Bank 2 is the pass side correct? I have seen it refered to as the drivers side. I was always told bank one has cyl 1 and bank 2 has cyc 2 on it.
#6
RE: P0155 code
You are correct. If the new sensor did in fact fix the problem, then the light should go out after 3-4 drive cycles.
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Brandie
2nd Generation S-series (1995-2005) Tech
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11-01-2010 06:34 PM