Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

20°C (68°F)

37 to 44 Ω

1 - No. 1 vacuum switching valve assembly (for ACIS) body ground

Always

10 kΩ or higher

2 - No. 1 vacuum switching valve assembly (for ACIS) body ground

If the result is not as specified, replace the No. 1 vacuum switching valve assembly (for ACIS).

*a

Valve Body

*b

Component without harness connected

(No. 1 Vacuum Switching Valve Assembly (for ACIS))

(b) Check the No. 1 vacuum switching valve assembly (for ACIS) operation.

(1) When vacuum is applied to the port (E), check that air is sucked into the filter.

If the result is not as specified, replace the No. 1 vacuum switching valve assembly (for ACIS).

*a

Filter

*b

Port (E)

*c

Air

(2) Apply battery voltage across the terminals. When vacuum is applied to the port (F), check that air is sucked into the port (E).

If the result is not as specified, replace the No. 1 vacuum switching valve assembly (for ACIS).

*a

Port (E)

*b

Port (F)

*c

Air

    Removal
    REMOVAL PROCEDURE 1. REMOVE V-BANK COVER SUB-ASSEMBLY Click here 2. REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) (a) Disconnect the No. 1 vacuum switching valve assembly (for ACIS) ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) (a) Install the No. 1 vacuum switching valve assembly (for ACIS) to the intake air surge tank assembly with the bolt. ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Driving procedures: Hybrid transmission
    Shifting the shift lever While the power switch is in ON mode, move the shift lever with the brake pedal depressed. When shifting the shift lever between P and D, make sure that the vehicle is completely stopped. Shift position purpose *1: To improve fuel efficiency and reduce noise ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: Assist Map Number Un-Writing (C1581)
    DESCRIPTION This DTC will be stored if the power steering ECU assembly determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581 Assist Map Number Un-Writing Assi ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0173