toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Diagnostic Trouble Code Tests and Associated Procedures|Page 3397 > < Diagram Information and Instructions|Page 3394
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A/C Idle Up Valve: Diagnostic Trouble Code Tests and Associated Procedures

A/C Idle Up Circuit 

CIRCUIT DESCRIPTION 

When the air conditioning operates (increased engine Load),this Circuit switches the VSV ON and increases the amount of bypass air to increase
the idle speed, thus maintaining driveability.

WIRING DIAGRAM 

INSPECTION PROCEDURE 

Step 1

Diagnostic Trouble Code Tests and Associated Procedures|Page 3397 > < Diagram Information and Instructions|Page 3394