Toyota Sienna Service Manual: Power Source Circuit
DESCRIPTION
Power is supplied to the fold seat control ECU through the L-RR2 SEAT and R-RR2 SEAT fuses.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (L-RR2 SEAT, R-RR2 SEAT)
- Remove the fuses from the R/B No. 3.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (POWER SOURCE)
- Remove the fold seat control ECU.
- Disconnect the connectors from the fold seat control ECU.
- Measure the voltage according to the value(s) in the table below.
Standard voltage: LH side
RH side
3 CHECK HARNESS AND CONNECTOR (GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance: LH side
RH side
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Indicator Circuit
DESCRIPTION
This system has two indicator lights. One of the indicator lights is built
into the fold seat switch. This
indicator light receives power from the fold seat control ECU. It comes on or ...
Fold Seat Switch Circuit
DESCRIPTION
When the fold seat switch is operated, a switch operation signal is sent to
the fold seat control ECU. The
ECU receives switch operation signals from each switch and activates the fold ...
Other materials:
Inspection
1. INSPECT LOWER BALL JOINT ASSEMBLY FRONT LH
(a) As shown in the illustration, flip the ball joint stud
back and forth 5 times, before installing the nut.
(b) Using a torque wrench, turn the nut continuously at
a rate of 3 - 5 seconds per 1 turn and take the
torque reading on the 5th tur ...
Mirror Switch Circuit
DESCRIPTION
A switch signal of the outer mirror switch is transmitted to the
selected outer mirror control ECU by way
of the body ECU. Then, the outer mirror control ECU activates the mirror
motor to move the mirror UP,
DOWN, RIGHT and LEFT in response to the inputs.
HINT:
Th ...
Oxygen (A/F) Sensor Pumping Current Circuit
DTC P2238 Oxygen (A/F) Sensor Pumping Current Circuit
Low (Bank 1 Sensor 1)
DTC P2239 Oxygen (A/F) Sensor Pumping Current Circuit
High (Bank 1 Sensor 1)
DTC P2241 Oxygen (A/F) Sensor Pumping Current Circuit
Low (Bank 2 Sensor 1)
DTC P2242 Oxygen (A/F) Sensor Pumping Current Circuit
High (Bank ...
