Toyota Sienna Service Manual: Circuit inspection
A description of the main areas of each circuit inspection is shown in the table below.
| Item | Description |
| Circuit Description | The major role, operation of the circuit and its component parts are explained. |
| Diagnostic Trouble Code No. and Detection item | Indicates the diagnostic trouble codes, diagnostic trouble code settings and suspected areas for a problem |
| Wiring diagram | This shows a wiring diagram of the circuit.
Use this diagram together with ELECTRICAL WIRING DIAGRAM to thoroughly understand the circuit. Wire colors are indicated by an alphabetical code. B = Black, L = Blue, R = Red, BR = Brown, LG = Light Green, V = Violet, G = Green, O = Orange, W = White, GR = Gray, P = Pink, Y = Yellow, SB = Sky Blue The first letter indicates the basic wire color and the second letter indicates the color of the stripe. |
| Inspection Procedures | Use the inspection procedures to determine if the circuit is normal or abnormal. If abnormal, use the inspection procedures to determine whether the problem is located in the sensors, actuators, wire harnesses or ECU. |
| Indicates the condition of the connector of the ECU during the check | Connector being checked is connected.
Connections of tester are indicated by (+) or (-) after the terminal name. Connector being checked is disconnected. The inspections between a connector and body ground, information about the body ground is not shown in the illustration. |
Problem symptoms table
When a "Normal" code is output during a DTC check but
the problem still occurs, use the Problem Symptoms
Table. The suspected areas (circuits or parts) for each
problem symptoms are in th ...
Terms
...
Other materials:
Capacity and distribution
Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capacity) - (Total weight of occupants)
Steps for Determining Correct Load Limit
Locate the statement “The combined weight of occupants and
cargo should never exceed XXX kg or XXX lbs.” on your ...
Precaution
1. INSPECTION PROCEDURE FOR VEHICLE INVOLVED
IN ACCIDENT
Perform the zero point calibration and sensitivity
check if any of the following conditions occur.
The occupant classification ECU is replaced.
Accessories (seatback tray and seat cover, etc.)
are installed.
...
Replacing a flat tire
Chock the tires.
Slightly loosen the wheel nuts
(one turn).
Turn the tire jack portion A by
hand until the notch of the jack
is in contact with the jack point.
The jack point guides are located
on the side of rocker moulding.
They indicate the jack point po ...
