Toyota Sienna Service Manual: Pressing Power Switch does not Turn on System
INSPECTION PROCEDURE
1 CHECK VEHICLE CONDITION
- Check that conditions in the cabin are not likely to cause condensation.
HINT: This problem occurs when the cabin is humid and the temperature changes rapidly. This may produce condensation, resulting in a short circuit.
OK: Condensation is not likely to be produced.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Noise Occurs
INSPECTION PROCEDURE
1 NOISE CONDITION
Check in which direction the noise comes from (front left
or right, or rear left or right).
Check in which direction the noise comes from.
OK:
T ...
No Sound can be Heard from Speakers
INSPECTION PROCEDURE
1 CHECK RADIO RECEIVER
Check radio receiver setting.
Check that the volume is not set to "0".
Check that "MUTE" is off.
OK:
The vo ...
Other materials:
VC Output Circuit
DESCRIPTION
The ECM constantly uses 5 V from the battery voltages supplied to the +B (BATT)
terminal to operate the
microprocessor. The ECM also provides this power to the sensors through the VC
output circuit.
When the VC circuit is short-circuited, the microprocessor in the ECM and
sens ...
Window defogger switch
INSPECTION
1. INSPECT WINDOW DEFOGGER SWITCH
Check the defogger switch illuminates.
Standard
If the result is not as specified, replace the switch
assembly or bulb.
Check the defogger timer.
Connect the positive (+) lead from the battery
to terminal 2 and ...
Short to GND in Front Pretensioner Squib LH
Circuit
DTC B0137/71 Short to GND in Front Pretensioner Squib LH
Circuit
DESCRIPTION
The front pretensioner squib LH circuit consists of the center airbag sensor
assembly and the front seat
outer belt assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B ...