ECT wire diagram one wires brown second wire is white have

2006 MAZDA 3
11,600 MILES • 2.3L • 4 CYL • 2WD • MANUAL
Avatar
MICHAEL SEIBER
  • MEMBER
  • 2 POSTS
When taking the clip off temperature sensor it shattered to pieces I have no idea what wire goes where. I can't find a diagram anywhere on the internet. can you please help?
Apr 9, 2021 at 3:30 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

Both wires go to the powertrain control module (PCM). If you look at the pic below, it shows the sensor and wiring.

Here is a link you may find helpful:

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

I hope this helps. Let me know if you have other questions.

Take care,

See pic below
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Apr 9, 2021 at 3:43 PM
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,330 POSTS
To add to the above, the brown wire is the ground to the sensor while the white wire is the signal to the PCM it measures the resistance in the circuit to determine coolant temperature. On the part that the connector plugs into the clip side up, the brown wire goes to the left pin white on the right pin.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Apr 9, 2021 at 4:35 PM
Avatar
MICHAEL SEIBER
  • MEMBER
  • 2 POSTS
Thanks. that is perfect exactly what I needed.
Apr 10, 2021 at 12:13 AM
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,330 POSTS
That is a standard connector that most parts stores should be able to get for you as a pigtail to replace the bad one. Just be sure to replace it correctly to keep the resistance correct. Here are a couple videos on methods. You don't need the fancy tools in the first video.
https://www.youtube.com/watch?v=6EiIDNEiB_U
https://www.youtube.com/watch?v=r7GlDBge_WU
Apr 10, 2021 at 3:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.