Ambient Sensor Repair Procedures

Inspection

1. 1
   Ignition switch OFF
2. 2
   Disconnect the ambient temperature sensor.
3. 3
   Check the resistance of the ambient temperature sensor between terminals 1 and 2, and check whether it changes when the ambient temperature changes.

   

   1. Sensor Ground

   2. Ambient Sensor Signal

   
   Specification

   Ambient Temperature [°C(°F)]	Resistance between Terminals 1 and 2 (kΩ)
   -30(-22)	480,41
   -20(-4)	271,21
   -10(14)	158,18
   0 (32)	95,10
   10 (50)	58,80
   20 (68)	37,32
   30(86)	23,76
   40(104)	16.13
   50(122)	10,95

4. 4
   If the measured resistance does not conform to the specification, replace the ambient temperature sensor with a known good one and check that the operation is correct.
5. 5
   If the problem is resolved, replace the ambient temperature sensor.

Replacement

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Loosen the mounting bolts and remove the lower cover (A).

   

3. 3
   Disconnect the connector and remove the ambient air temperature sensor (A).

   

4. 4
   Installation is the reverse of removal.