Turn the ignition switch OFF.
Disconnect ambient temperature sensor.
Check the resistance of ambient temperature sensor between terminal “+” and “-” whether it is changed by changing of the ambient temperature.
Ambient temperature [℃(℉)] | Resistance [㏀] | Voltage [V] |
-30(-22) | 507 | 4.720 |
-20(-4) | 284.5 | 4.522 |
-10(14) | 164.2 | 4.225 |
0 (32) | 97.5 | 3.821 |
10 (50) | 59.6 | 3.322 |
20 (68) | 37.46 | 2.772 |
30(86) | 24.18 | 2.227 |
40(104) | 16 | 1.735 |
50(122) | 10.83 | 1.323 |
If the measured resistance is not specification, substitute with a known-good ambient temperature sensor and check for proper operation.
If the problem is corrected, replace the ambient temperature sensor.
Disconnect the negative (-) battery terminal.
Remove the engine room under cover (A).
Disconnect the ambient temperature sensor connector (A).
Remove the ambient temperature sensor (A) after loosening the bracket mounting bolt.
Install in the reverse order of removal.
