Toyota Sienna Service Manual: 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 the table. The suspected areas are listed in order of probability. A description of each of the chart's columns is shown in the table below.
HINT:
In some cases, the problem is not detected by the diagnostic system even though a problem symptom occurs. It is possible that the problem is occurring outside the detection range of the diagnostic system, or that the problem occurs in a completely different system.
| Item | Description |
| Problem Symptom | - |
| Circuit Inspection, Inspection Order | Indicates the order in which the circuits need to be checked |
| Circuit or Part Name | Indicates the circuit or part which needs to be checked |
| See Page | Indicates the page where the flowchart for each circuit is located |
Diagnostic trouble code chart
Look for output Diagnostic Trouble Codes (DTCs) (from the
DTC checks) in the appropriate section's Diagnostic Trouble
Code Chart. Use the chart to determine the trouble area and
the proper inspecti ...
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 co ...
Other materials:
Disassembly
1. REMOVE CENTER CLUSTER MODULE KNOB NO.1 (for Manual Air Conditioning
System)
(a) Remove the center cluster module knob No. 1.
2. REMOVE CENTER CLUSTER MODULE KNOB NO.2 (for Manual Air Conditioning
System)
(a) Release the 2 claws fittings and remove the center
cluster module knob No ...
Repair
1. INSTALL HEADLIGHT PROTECTOR RETAINER UPPER
HINT:
If the installation area of the headlight assembly is
damaged, use the supply bracket for low-cost repair.
Ensure that the headlight assembly is not damaged.
Cut off the part shaded in the illustration and sand
smoo ...
Removal
1. PRECAUTION
CAUTION:
Be sure to read "PRECAUTION" thoroughly before servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait for 90 seconds after disconnecting the cable to
prevent the airbag working.
3. REMOVE FRONT SEAT ASSEMBLY (for Manual Seat)
4. REMOVE F ...
