Idle Speed/Throttle Actuator - Electronic: Testing and Inspection

BAC/Air Valve
Perform this inspection when the engine is cold. (Engine coolant temperature below 20 °C ( 68 °F ).




1. Connect a tachometer to the data link connector terminal IG-. When using an externally powered timing light and/ or tachometer connect it to the power connector (Blue: i-pin).

CAUTION
- Grounding the power connector terminal (Blue: 1-pin) will burn out the 20 A wiper fuse.




2. Connect data link connector terminals TEN and GND by using a jumper wire.
3. Verify that the engine speed gradually decreases as the engine warms up.
4. Disconnect the jumper wire.

BAC/Idle Air Control Valve
1. Disconnect the idle air control valve connector.




2. Connect an ohmmeter between the terminals of the idle air control valve and measure the resistance.

Resistance: 11.5 ± 0.8 Ohms at 20 °C ( 68 °F)

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