2007 TOYOTA SIENNA ad blue

coolant child lock oil viscosity bulb seat adjustment inflation pressure

Page 55 of 3000

TOYOTA SIENNA 2007 Service Repair Manual INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMSIN–43
IN
(d) HIGH ELECTRICAL LOAD METHOD: When a
malfunction seems to occur when electrical load is
excessive.
(1) Turn on the heater b

INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMSIN–43
IN
(d) HIGH ELECTRICAL LOAD METHOD: When a
malfunction seems to occur when electrical load is
excessive.
(1) Turn on the heater blower, headlight, rear
window defogger and all other electrical loads.
Check if the malfunction reoccurs.
5. 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 inspection procedure. A description of each of the
chart's columns is shown in the table below.
6. 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.
7. CIRCUIT INSPECTION
A description of the main areas of each circuit inspection
is shown in the table below.
B107149
Item Description
DTC No. Indicates the diagnostic trouble code
Detection Item Indicates the system or details of the problem
Trouble Area Indicates the suspect areas of the problem
See Page Indicates the page where the inspection procedures for each circuit is
to be found, or gives instruction for checking and repairs.
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
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.