Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT: Troubleshoot in accordance with the procedures on the following pages.
1 VEHICLE BROUGHT TO WORKSHOP
2 DTC CHECK
- Check for DTCs and make a note of the code that is output (See page MP-14).
- Delete the DTC.
- Check if the DTC is output once again when the problem symptom is simulated based on the noted code.
- When no code is output (symptom check and simulation are possible), proceed to A.
- When a code is output, proceed to B.
3 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
- Terminals of ECU
4 ADJUST, REPAIR OR REPLACE
END
System description
1. MULTIPLEX COMMUNICATION SYSTEM (BEAN)
The BEAN communication line is used to control the
combination meter, the A/C amplifier, the airbag
sensor assembly, the multiplex network body ECU,
...
Terminals of ECU
1. MULTIPLEX NETWORK GATEWAY ECU
Disconnect the G4 ECU connector.
Measure the voltage between the specified
terminals on the wire harness side connector.
If the result is not as ...
Other materials:
Installation
1. INSTALL CENTER REAR SEAT LAP TYPE BELT
ASSEMBLY (for 8-Passenger)
HINT:
Refer to the instructions for reassembly of the rear No. 1
seat assembly (for center seat).
Install the center rear seat lap type belt assembly
with the bolt.
Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf)
2. IN ...
ACIS Control Circuit
DESCRIPTION
This circuit opens and closes the Intake Air Control Valve (IACV) in response
to changes in the engine
load in order to increase the intake efficiency (ACIS: Acoustic Control
Induction System).
When the engine speed is between 0 and 4450 rpm and the throttle valve opening
angl ...
Open in Front Passenger Side Squib Circuit
DTC B0106/54 Open in Front Passenger Side Squib Circuit
DESCRIPTION
The front passenger side squib circuit consists of the center airbag sensor
assembly and the front
passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0106/54 is rec ...
