Millenia S V6-2.3L DOHC (Miller cycle) (2000)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
BAC Valve Operation Inspection
CAUTION: Connecting the wrong data link connector terminal may possibly cause a malfunction. Carefully connect the specified terminal only.
1. Using a jumper wire to turn on the test mode, perform the following:
Short the DLC terminal TEN to body GND using a jumper wire.
2. Connect a dwell tacho tester to the DLC terminal IG-.
3. Start the engine at engine cold condition.
4. Verify that the idle speed decreases gradually as the engine warms up.
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If not, inspect the water hose of the BAC valve.
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If water hose is okay, replace the BAC valve.