Toyota Sienna Service Manual: Terminals of ecm
1. Ecm
Hint: each ecm terminal's standard voltage is shown in the table below.
In the table, first follow the information under "condition".
Look under "symbols (terminal no.)" For the terminals to inspected. The standard voltage between the terminals is shown under "specific condition".
Use the illustration above as a reference for the ecm terminals.
(a) Waveform 1
Reference: 
(b) Waveform 2
Reference: 
(c) Waveform 3
Reference: 
(d) Waveform 4
Reference: 
(e) Waveform 5
Reference: 
(f) Waveform 6
Reference: 
(g) Waveform 7
Reference:
(h) Waveform 8
Reference: 
Problem symptoms table
HINT:
If a normal code is displayed during the diagnostic trouble
code check although the trouble still occurs, check the
electrical circuits for each symptom in the order given in
the chart ...
Diagnosis system
1. DESCRIPTION
(a) When troubleshooting OBD II vehicles, the only
difference from the usual troubleshooting procedure
is to connect an OBD II scan tool complying with
SAE J1987 or a intelligen ...
Other materials:
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*cm, 81 in.*lbf)
NOTICE:
Make sure that there is no oil on the threads
of bolts A.
...
Rear Occupant Classification Sensor RH Circuit
Malfunction
DTC B1783 Rear Occupant Classification Sensor RH Circuit
Malfunction
DESCRIPTION
The rear occupant classification sensor RH circuit consists of the occupant
classification ECU and the
rear occupant classification sensor RH.
DTC B1783 is recorded when a malfunction is detected in the rear oc ...
Installation
1. INSTALL FRONT SEAT ASSEMBLY LH
Place the seat assembly in the cabin.
NOTICE:
Be careful not to damage the body.
Connect the connectors under the seat assembly.
Tighten the 2 bolts on the front side of the seat
assembly.
Torque: 37 N*m (375 kgf*cm, 27 ft.*lb ...
