O2 Sensor Heater Issue All 4 Bad at Once?

[Jackie Woolfolk]

I'm having the same problem with my vehicle of the same year and model. It's been like this for over 2 years now. did you ever find out what the issue was?

 

[Brucell]

I can not find a solution to fix this confounded issue.

 

[Keepinitoldskool]

All 4 heaters aren't going to fail at the same time, this is a fuse or wiring issue. Don't buy 4 02 sensors.

 

[Brucell]

 

[Brucell]

In the picture above, this is C146. The green wire pin was corroded. Gave me all sorts of codes, P0446, P0155, P0135, P0161, P0141.

The corrosion was just a small green, blackish looking dot on the pin.
Good luck.
Thanks everyone for the post above.

 

[Yupster Dog]

The green wire pin was corroded.

After cleaning dont forget the dielectric grease. It will help it from hapening again.

 

[rangeboss]

In the picture above, this is C146. The green wire pin was corroded. Gave me all sorts of codes, P0446, P0155, P0135, P0161, P0141.

The corrosion was just a small green, blackish looking dot on the pin.
Good luck.
Thanks everyone for the post above.

For my first post in the forums...

THANK YOU.

I bought this 2012 knowing it had the CEL on and a few issues. Replaced all 4 O2 sensors anyway. Fought with the codes as stated above as well. Just now pulled open the plug to see a minor black smudge on the pin. Cleaned it, dielectric and put it back together. Cleared codes and haven't seen those pop up again. Thank you for answering your own post. It helped.

 

[bodabdan]

Good find

 

[deputyfroglegs]

For my first post in the forums...

THANK YOU.

I bought this 2012 knowing it had the CEL on and a few issues. Replaced all 4 O2 sensors anyway. Fought with the codes as stated above as well. Just now pulled open the plug to see a minor black smudge on the pin. Cleaned it, dielectric and put it back together. Cleared codes and haven't seen those pop up again. Thank you for answering your own post. It helped.

What do you clean it with?

 

[Logan97]

I had a p0155 code on my 07. Mechanic replaced the o2 sensor and that didn't work. Suggested it could be the pcm, replaced that, didn't work. Last mechanic I spoke to said that one of the wires to that sensor must be frayed, probably behind the engine, and the whole harness would need to be replaced. Idk what you've tried but good luck because I got rid of the 07 and got a 13 over that code.