Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000YQW2
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: 2GR-FKS (INTAKE / EXHAUST): VACUUM SWITCHING VALVE(for ACIS): INSPECTION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSPECTION

PROCEDURE

1. INSPECT NO. 1 VACUUM SWITCHING VALVE (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)

33 to 39 Ω

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

Always

10 kΩ or higher

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

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

*a

Valve Body

*b

Component without harness connected

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

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

*a

Port (E)

*b

Port (F)

*c

Air