Camry Sedan 2-Door V6-3.0L (1MZ-FE) (1994)
Idle Up Control Valve: Initial Inspection and Diagnostic Overview
INSPECTION
1. Verify initial conditions:
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Engine at normal operating temperature
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Idle speed set correctly
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Transmission in neutral position
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Air Conditioning switch ON
Ignition Timing Connector
2. Using jumper connect terminals TE1 and E1 of the Data Link Connector 1. check that idle-up occurs for approximately 3 seconds. (SST
09843-18020)
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Valve operation is faulty if during the idle-up period the engine speed drops by 100 rpm or more, rough idle occurs, or the engine stalls.
3. Observe the idle speed for approximately 3 to 15 seconds. During this time the Idle-Up Valve should go off, the Idle Air Control Valve half-open
and idle-up should occur.
4. Check that the idle speed after approximately 15 seconds, does not vary greatly from the idle speed observed in step 3. The Idle-Up Valve should
now be in the ON position.