Toyota Sienna Service Manual: On-vehicle inspection
1. CHECK RADIATOR RESERVOIR CAP SUBASSEMBLY
a) Measure the valve opening pressure.
(1) If there are water stains or foreign matter on rubber packings 1, 2 or 3, clean the part(s) with water and finger scouring.
(2) Check that rubber packings 1, 2 and 3 are not deformed, cracked or swollen.
(3) Check that rubber packings 3 and 4 are not stuck together.
(4) Apply engine coolant to rubber packings 2 and 3 before using the radiator cap tester.
(5) When using the cap tester, tilt it to 30° or more above the horizontal.
(6) Pump the cap tester several times, and check the maximum pressure*.
Pump speed: 1 pump per second
*: Even if the cap cannot maintain the maximum pressure, it is not a defect.
Judgment criterion
If the maximum pressure is less than the minimum standard value, replace the radiator reservoir cap sub-assembly.
Radiator
COMPONENTS
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On-vehicle cleaning
1. INSPECT RADIATOR ASSEMBLY
(a) Check that the radiator and condenser are not
blocked with leaves, dirt, or insects. Clean the hose
connections.
If the fins are blocked, wash them with water or ...
Other materials:
Horn
To sound the horn, press on or
close to the mark.
WARNINGCaution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an
accident,
resulting in death or serious injury.
After adjusting the steeri ...
Monitor result information
If you use a generic scan tool, multiply the test value by
the scaling value listed below.
...
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-78
An error occurs during the decode process (MP3/
WMA).
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INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Thi ...
