< Reference data >

ENGINE COOLANT TEMPERATURE REFERENCE

Engine coolant temperature °C (°F)

Voltage ⁽¹⁾ V

Resistance kΩ

- 10 (14)

4.4

7.0-11.4

20 (68)

3.5

2.1-2.9

50 (122)

2.2

0.68-1.00

90 (194)

0.9

0.236-0.260

⁽¹⁾	This data is reference value and is measured between ECM terminal 73 (Engine coolant temperature sensor) and ground.

Fig 1: Engine Coolant Temperature Graph

Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.