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How to wire replacement coolant temperature sensor?

Tiny
COBEALE32
  • MEMBER
  • 2007 MAZDA 6
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 92,000 MILES
All the coolant temperature sensor connectors I can find for my car have two wires while the original only has one. Bought one with two wires and now I’m at a loss on how to wire the thing up. TIA
Monday, December 6th, 2021 AT 3:14 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

Looking at a wiring schematic, it shows it to be a 2-wire sensor, one brown wire and one light green with a black tracer. See pic below.

Is the sensor you are replacing on the rear of the engine on the driver's side? Take a look at pic 2 below. It shows the location.

Let me know the wire color you are seeing.

Take care,

Joe

See pics below.
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Monday, December 6th, 2021 AT 7:42 PM

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