Toyota Sienna Service Manual: 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 the wire harness side or the seat heater switch
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 ...
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.
...
Other materials:
Optimal use of the audio
system
On the “Sound Settings” screen, sound quality (Treble/Mid/
Bass), volume balance can be adjusted.
How to adjust the sound settings and sound quality
1, 2, 3 Select “-” or “+” to adjust
the treble, mid or bass to
a level between -5 and 5.
4, 5 Select “Front” or “Rear” ...
Player Error
DTC 58-44 Player Error
DTC 80-44 Player Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
58-44
Map player error is detected
Radio and navigation assembly
80-44
Map player error is detected.
INSPECTION PROCEDURE
HINT: ...
Wiper Signal Circuit
DESCRIPTION
The distance control ECU detects wiper operation. If the windshield wipers
operate in the HI or LO mode,
the cruise control is canceled and the warning sound "pong" is emitted once. In
addition, the following
warnings will continue until the cruise control main switch is ...
