|
|
Content .. 1728 1729 1730 1731 ..
CONSTRUCTION AND FUNCTION 7A1-17
ATF Thermo Sensor • The ATF thermo sensor detects the ATF temperature in the oil pan and sends signal to the TCM. • The ATF thermo sensor is of the thermister type that the resistance value changes according to the ATF oil temperature. • The lower is the ATF temperature, the larger is the resistance, and vice versa. • When the ATF temperature exceeds 145 ° C, the TCM lights up the ATF temperature warning lamp in the meter. When the ATF temperature decreases below 128 ° C, the ATF temperature warning lamp goes out. • The ATF thermo sensor is installed to the lower control valve body and integrated with the harness assembly.
10.0 100.0 1,000.0 10,000.0 100,000.0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 ATF Temperature (°C) Resistance ( )
Figure 29. Characteristic of Thermo Sensor
Figure 30. Location of Thermo Sensor ATF Temperature ( ° C) Resistance (Approximately) − 30 ° C 29,613.7 Ω 0 ° C 6,028.0 Ω 10 ° C 3,822.1 Ω 30 ° C 1,681.7 Ω 50 ° C 819.1 Ω 100 ° C 117.6 Ω 128 ° C 98.3 Ω 135 ° C 84.6 Ω 145 ° C 68.8 Ω |