Toyota Sienna Service Manual: How to proceed with troubleshooting
The intelligent tester can be used in steps 4, 6, 8 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 PASSENGER AIRBAG ON/OFF INDICATOR CHECK
4 DTCs CHECK (Present and Past DTCs)
- Check for DTCs.
Result
GO TO PROBLEM SYMPTOMS TABLE
5 DTCs CHART
6 CIRCUIT INSPECTION
7 REPAIR
8 CLEAR DTCs (Present and Past DTCs)
- Clear DTCs.
9 DTCs CHECK (Present and Past DTCs)
- Check for DTCs.
Result
Go to step 5
10 SYMPTOM SIMULATION
- Check the passenger airbag ON/OFF indicator condition.
Result
Go to step 5
11 CONFIRMATION TEST
END
System description
1. DESCRIPTION OF OCCUPANT CLASSIFICATION SYSTEM
GENERAL DESCRIPTION.
In the occupant classification system, the
occupant classification ECU calculates the
weight of the occu ...
Initialization
1. ZERO POINT CALIBRATION
NOTICE:
Make sure that the front passenger seat is not
occupied before performing the operation.
HINT:
Perform the zero point calibration and sensitivity check if
any o ...
Other materials:
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 a
steam cleaner.
NOTICE:
If the distance between the steam cleaner and
core is ...
Installation with LATCH system (second seat)
Fold the seatback while pulling
the lever and move to the rearmost
recline position.
Widen the gap between the seat cushion and seatback slightly.
Type A
Latch the hooks of the lower
straps onto the LATCH
anchors. If the child restraint
has a top tether strap, the ...
Air-fuel ratio (a/f) and heated oxygen (ho2)
sensor heater monitors (front a/f and rear ho2 sensor
type)
(a) Preconditions
The monitor will not run unless:
The MIL is OFF.
(b) Drive Pattern
(1) Connect an intelligent tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Clear the DTCs.
(4) Start the engine.
(5) Allow the engine to idle for 10 minutes or more.
...
