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:
Initialization
HINT:
The seatback position is initialized at the factory before
shipment, so initialization is not normally required.
There is an initialization function for cases when
reinitialization is required.
Before performing initialization procedure and initialization
release step ...
Short to GND in Side Squib RH Circuit
DTC B0112/41 Short to GND in Side Squib RH Circuit
DESCRIPTION
The side squib RH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0112/41 is recorded when a sh ...
Magnetic clutch relay
ON-VEHICLE INSPECTION
1. INSPECT MAGNETIC CLUTCH RELAY
(a) Remove the magnetic clutch relay.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
If the resistance is not as specified, replace the
magnetic clutch relay. ...
