Evaporator Temperature Sensor / Switch: Service and Repair

The Evaporator Temperature Sensor is located on the lower right side of the heater housing.

REMOVAL

Negative Battery Cable Remote Terminal:

1. Open hood and disconnect the negative battery cable remote terminal from the remote battery post.
2. Remove right under panel silencer.
3. Disconnect wiring connector for evaporator probe.
4. At center of heater housing, locate evaporator probe access plate. Using a flat blade pry tool, pull back on the locking tab. Twist the access plate counter clockwise one-quarter turn and remove plate.
5. Pull probe out of evaporator core. This plate must be pushed inside the A/C unit and orientated in such a way that the plate can be removed.

INSTALLATION

Evaporator Probe Needle:

For installation, reverse the above procedures. The new probe must not go into the same hole (in the evaporator coil) that the old probe was removed. The evaporator is manufactured with three holes for probe insertion. Insert the probe in the uppermost hole.