Highlander 2WD V6-3.3L (3MZ-FE) Hybrid (2006)
b. Middle pressure cut side:
Inspect pressure switch operation.
1. Set the manifold gauge.
2. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 3.
3. Check continuity between the terminals when refrigerant pressure is changed, as shown in the illustration.
If operation is not specified, replace the liquid tube sub-assembly A.