Toyota Sienna Service Manual: VVT sensor
COMPONENTS
Installation
1. REMOVE MASS AIR FLOW METER
Install the mass air flow meter with the 2 screws.
Connect the mass air flow meter connector.
...
On-vehicle inspection
1. CHECK VVT SENSOR OUTPUT VOLTAGE
Turn the ignition switch to the ON position.
Check the voltage between the specified terminal
and body ground.
Standard voltage
While turning ...
Other materials:
ACIS Control Circuit
DESCRIPTION
This circuit opens and closes the Intake Air Control Valve (IACV) in response
to changes in the engine
load in order to increase the intake efficiency (ACIS: Acoustic Control
Induction System).
When the engine speed is between 0 and 4450 rpm and the throttle valve opening
angl ...
Inspection
1. INSPECT SEAT HEATER SWITCH LH
Measure the resistance of the seat heater switch
when the switch is operated.
Resistance
If the result is not as specified, replace the switch.
HINT:
As the dial is being turned, the resistance changes
gradually.
Push the seat h ...
On-vehicle inspection
1. CHECK SEAT HEATER CONTROL (WIRE HARNESS
SIDE)
Disconnect the connector from the seat heater
control.
Measure the voltage and resistance of each
terminal of the wire harness side connector.
Standard
If the result is not as specified, there may be a
malfunction on ...