toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 3733 > < Diagram Information and Instructions|Page 3731
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A/C Idle Up Valve: Testing and Inspection

INSPECTION PROCEDURE

1. REMOVE AIR CONDITIONING IDLE-UP VALVE.

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Disconnect the following connector and hoses:
1. Air Conditioning Idle-Up Valve connector. 
2. Air hose from air intake chamber.
3. Air hose from air tube. 

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Remove the 2 bolts and Air Conditioning Idle-Up Valve together with the 2 air hoses.

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Disconnect the 2 air hoses from the Air Conditioning Idle-Up Valve.

2. INSPECT AIR CONDITIONING IDLE-UP VALVE FOR OPEN CIRCUIT. 

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Using an ohmmeter, check that there is continuity between the terminals.

Resistance (Cold):  30 - 34 Ohms 

If there is no continuity, replace the Air Conditioning Idle-Up Valve.

3. INSPECT AIR CONDITIONING IDLE-UP VALVE FOR GROUND. 

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Using an ohmmeter, check that there is NO continuity between each terminal and the body. 

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If there IS continuity, replace the Air Conditioning Idle-Up Valve.

4. INSPECT AIR CONDITIONING IDLE-UP VALVE OPERATION.

Diagram Information and Instructions|Page 3733 > < Diagram Information and Instructions|Page 3731