Toyota Sienna Service Manual: Vacuum switching valve

Vacuum tank

On-vehicle inspection 1. Inspect air cleaner cap sub-assembly (A) check that air flows from port b to port a. (B) apply 60 kpa (450 mm hg, 18 in. Hg) of vacuum to port b. Check that there is ...

Inspection

1. V (a) Inspect VSV operation. (1) Using an ohmmeter, measure the resistance according to the value(s) in the table below.V Standard resistance If the result is not as specified, replace t ...

Other materials:

Occupant Classification Sensor Power Supply Circuit Malfunction
DTC B1793 Occupant Classification Sensor Power Supply Circuit Malfunction DESCRIPTION The occupant classification sensor power supply circuit consists of the occupant classification ECU and the occupant classification sensors. DTC B1793 is recorded when a malfunction is detected in the occu ...

Inspection
1. INSPECT OIL PUMP ASSEMBLY (a) Turn the drive gear with the 2 screwdrivers and make sure that it rotates smoothly. NOTICE: Be careful not to damage the oil seal lip. 2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY (a) Push the driven gear to one side of the body. (b) Using ...

Terminals of ecu
Check tire pressure warning ecu HINT: Inspect the connectors from the back side while the connectors are connected. (a) Disconnect the tire pressure warning antenna and receiver connector. (b) Measure the voltage according to the value(s) in the table below. (c) Connect the tire pr ...