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Battery Temperature Sensor

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Battery temperature sensor is integrated in battery current sensor. The sensor measures ambient temperature around the battery. The electrical resistance of the thermistor decreases as temperature increases.

< Reference data > 

REFERENCE DATA

Temperature [°C (°F)] Voltage(1) (V) Resistance (kΩ)
25 (77) 3.333 1.9 - 2.1
90 (194) 0.969 0.222 - 0.258
(1) These data are reference values and are measured between ECM terminals.
Fig 1: Temperature Vs Resistance Graph
G04874976Courtesy of NISSAN MOTOR CO., U.S.A.