Ambient Temperature Sensor Test
AMBIENT TEMPERATURE SENSOR TEST1. Turn the ignition OFF.
2. Disconnect and isolate the battery negative cable.
3. Disconnect the ATS harness connector.
4. Measure the resistance of the ATS using the following Min/Max values:
TEMPERATURE SENSOR RESISTANCE
0 °C (32 °F) 29.33 - 35.99 Kilohms
10 °C (50 °F) 17.99 - 21.81 Kilohms
20 °C (68 °F) 11.37 - 13.61 Kilohms
25 °C (77 °F) 9.12 - 10.86 Kilohms
30 °C (86 °F) 7.37 - 8.75 Kilohms
40 °C (104 °F) 4.90 - 5.75 Kilohms
The sensor resistance should read between these min/max values. If the resistance values are not OK, replace the Sensor.