Toyota Sienna Service Manual: Inspection
1. Inspect water pump assembly
(a) Visually check the drain hole and air hole for coolant leakage.
(b) Turn the pulley, and check that the water pump bearing moves smoothly and noiselessly.
If the bearing does not move smoothly and noiselessly, replace the water pump.
Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
See page EM-26
2. SECURE ENGINE (See page EM-37)
3. REMOVE GENERATOR ASSEMBLY (See page CH-17)
4. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
(See page A ...
Installation
1. INSTALL WATER PUMP ASSEMBLY
(a) Install a new water pump gasket and the water
pump assembly with the 16 bolts.
Torque: Bolt A
21 N*m (214 kgf*cm, 15 ft.*lbf)
Bolts B and C
9.1 N*m (93 kgf ...
Other materials:
Communication Error from Distance Control
ECU to ECM
DTC P1615 Communication Error from Distance Control
ECU to ECM
DTC U1101 Lost Communication with Distance Control
ECU
DESCRIPTION
The distance control ECU receives information about the area in front of the
vehicle from the laser sensor
and then sends a brake control demand signal (decelerat ...
Front Occupant Classification Sensor RH Circuit
Malfunction
DTC B1781 Front Occupant Classification Sensor RH Circuit
Malfunction
DESCRIPTION
The front occupant classification sensor RH circuit consists of the occupant
classification ECU and the
front occupant classification sensor RH.
DTC B1781 is recorded when a malfunction is detected in the fron ...
Manual Up / Down Function does not Operate on Rear RH Only
DESCRIPTION
If the manual UP/DOWN function does not operate, the power window motor, the
regulator switch or the
wire harness may be malfunctioning.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS (POWER SOURCE)
Disconnect the P39 regulator switch connector.
Turn ...
