Switching Solenoid Valve Signal Check
- Install tachometer. Warm engine to normal operating temperature. Allow engine to idle. Connect Checker Light (49 F018 001) to Green connector. See Figure .
- Disconnect hose at air control valve. See Figure . Cover valve port with finger and ensure Red checker light activates and air is drawn into valve under designated conditions. See RED CHECKER LIGHT OPERATION table.
RED CHECKER LIGHT OPERATION
| Engine Condition | Air Flow | Light Operation |
|---|---|---|
| Idle | Yes | Off |
| Acceleration | No | On |
| More Than 4200 RPM | No | On |
| Deceleration | Yes | Off |