A/C Idle-Up Valve

WARNING: This page is about a different car, the 1995 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition off. Disconnect negative battery cable. Disconnect electrical connector and hoses from A/C idle-up valve. See COMPONENT LOCATIONS under INTRODUCTION. See Fig 1. Remove A/C idle-up valve. Replace A/C idle-up valve if it does not operate as follows.

Resistance across terminals is 30-33 ohms at 68°F (20°C).
There is no continuity between VSV case (ground) each terminal of VSV (this checks for an internal short).
Blow through port "E". See Fig 1. Air does NOT come out of port "F".
Apply battery voltage across terminals. Blow through port "E". Air comes out of port "F".

Fig 1: Identifying Ports On A/C Idle-Up Valve