Toyota Sienna Service Manual: Seat heater system
PARTS LOCATION
ECU Power Source Circuit
DESCRIPTION
The position control ECU and switch assembly (power seat control switch and
ECU) is contained in the
switch assembly.
During manual operation, only one switch signal is accepted. If ...
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "Suspected Area" column
of th ...
Other materials:
Vehicle load limits
Vehicle load limits include total load capacity, seating capacity,
TWR (Trailer Weight Rating) and cargo capacity
Total load capacity (vehicle capacity weight):
Total load capacity means the combined weight of occupants, cargo
and luggage.
Seating capacity
Without second center seat: 7 occupan ...
Terminals of ECU
1. CHECK OUTER MIRROR CONTROL ECU LH
Disconnect the O9 and O10 connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
Voltage
Resistance
If the result is not as specified, there may be a
malfunction on the wire harness side.
Recon ...
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The likely causes of the problem are
indicated in descending order. Check each suspected area
in order. Repair or replace faulty parts or perform
adjustments as necessary.
Inspect the fuse and rel ...
