Operation CHARM: Car repair manuals for everyone.

Manual Trans.

OPERATIONAL INSPECTION



BAC/Air Valve
1. Verify that the engine coolant temperature is below 20°C (68°F)
2. Connect the SST to the data link connector.
3. Set switch [A] to position 1 and the test switch to SELF TEST.
4. Start the engine.
5. Verify that the idle speed decreases gradually as the engine warms up.




BAC/Idle-Air Control Valve
1. Connect the SST to the data link connector.
2. Set switch [A] to position 1 and the test switch to SELF TEST.
3. Verify that the idle speed is within specification.
4. Disconnect the idle air control valve connector with the test switch SELF TEST.
5. If the engine speed decreases, replace the BAC valve.
6. Perform the after-repair procedure.

COMPONENT INSPECTION



BAC/Air Valve
1. Remove the BAC valve.
2. Cool the BAC valve to below 0°C (32° F).
3. Heat the BAC valve at point [A] by using a blow drier, and verify that part [B] moves in the direction of the arrow in the figure.
4. If not as specified, replace the BAC valve.




BAC/Idle Air Control Valve
1. Disconnect the idle air control valve connector.
2. Measure resistance of the valve.

Resistance: 7.7-9.3 Ohms (at 23°C {73°F})

3. If not as specified, replace the BAC valve.