How to wire replacement coolant temperature sensor?

2007 MAZDA 6

92,000 MILES • 2.3L • 4 CYL • 2WD • AUTOMATIC

COBEALE32

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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

Dec 6, 2021 at 3:14 PM

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JACOBANDNICKOLAS

AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 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.

Images (Click to enlarge)

Dec 6, 2021 at 7:42 PM