Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2007 Lexus RX 350 AWDFACTORY OEM SERVICE PROCEDURE

Intake System: Inspection

INSPECT INTAKE AIR CONTROL VALVE

Fig 1: Applying Battery Voltage Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Inspection procedure when applying voltage between terminals
  1. Disconnect the connector from the intake air control valve.
  2. Apply battery voltage between terminals 1 (-) and 2 (+) of the intake air control valve.
    Check that a clicking sound is heard from the intake air control valve.
    
    If the result is not as specified, replace the intake air surge tank.
INSPECT AIR CLEANER ASSEMBLY

Fig 2: Applying Vacuum To Actuator
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Apply 26.6 kPa (200 mmHg, 7.9 in.Hg) of vacuum to the actuator. Check if the valve rotates open.
2. Apply vacuum for 1 minute. The actuator should continue to keep the valve open.
  If the result is not as specified, replace the air cleaner assembly.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.