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Code P0031 and P0037

Tiny
JOSE RODRIGUEZ2
  • MEMBER
  • 2010 CHRYSLER TOWN AND COUNTRY
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 109,000 MILES
I got these two codes out of my van, it has been like a four day now. How can I fix it? Can I still drive it at least three more days without worry of damage something? I read that I need to buy OEM parts, because aftermarket does not work well. The dealer is closed for weekend, but I need the van for transportation. Help please!
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Saturday, March 18th, 2017 AT 2:06 PM

8 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Test all the fuses in the car using a test light with the key on.
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Saturday, March 18th, 2017 AT 2:55 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
P0031= Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1
P0037= Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2

Check the fuses and check the wiring harness that leads to the sensors. These codes can be caused by power failure to the heater circuit or an open circuit to ground.
Both of those share the same ground wire and are spliced partway up the harness before they reach connector C111. Check for continuity between the grounds of the sensors and the chassis. No ground = broken wire or bad connector.

Got the Versa figured out yet?
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Monday, March 20th, 2017 AT 7:30 PM
Tiny
JOSE RODRIGUEZ2
  • MEMBER
  • 18 POSTS
Change both sensor but light still on, use a small scanner to erase codes but still coming back, can I damage something by driving it like that?
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Sunday, March 26th, 2017 AT 4:21 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Did you test the fuses as I suggested in the first response?
You got 2 responses and neither of them suggested replacing any sensors.
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Sunday, March 26th, 2017 AT 4:23 PM
Tiny
JOSE RODRIGUEZ2
  • MEMBER
  • 18 POSTS
I check the ones close to the battery, all fine Where are connector C111 located?? Can I drive the car on freeway? Need to go out of town like 500 ml round trip
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Sunday, March 26th, 2017 AT 10:20 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
C111 is in the harness coming from the O2 sensors under the vehicle. Not near the battery. The grounds both break out and are attached at ground point G100 which is on the transmission.
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Monday, March 27th, 2017 AT 3:29 AM
Tiny
JOSE RODRIGUEZ2
  • MEMBER
  • 18 POSTS
Check the grounds, fuses, everything's fine, including disconnecting the ground from the battery what else?
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Wednesday, April 5th, 2017 AT 11:56 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

It sounds like its time to check some wiring, here is a wiring diagram and a guide so you can do some testing.

https://www.2carpros.com/articles/how-to-check-wiring

Please run this test and get back to us so we can continue helping you.

Best, Ken
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Saturday, April 8th, 2017 AT 11:50 AM

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