A description of the main areas of each circuit inspection is below.
Item | Description |
description | The major role, operation of the circuit and its component parts are explained. |
Dtc no., Dtc detection condition, trouble area | Indicates the diagnostic trouble codes, diagnostic trouble code detection conditions, and trouble areas of 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. |
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. |
Inspection procedure connector illustrations |
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Emission inspection
and maintenance (i/m)
programs
Some states have vehicle emission inspection programs which
include obd (on board diagnostics) checks. The obd system
monitors the operation of the emission control system.
If the malfunction indicator lamp comes on
The obd system determines that a problem exists somewhere in the
emission contr ...
Precaution
Precaution for vehicle with srs airbag and
seat belt pretensioner
Some operations in this section may affect the srs
airbags and seat belt pretensioner. Prior to
performing the corresponding operations, read the
srs airbag notice (see page rs-1).
Components
...
Downhill assist control operation switch (test mode dtc)
Description
The downhill assist control switch is connected to the skid control ecu in
the abs and traction
actuator.
Dtc c1379/74 can be detected when the downhill assist control switch sends the
downhill assist control
switch signal or test mode ends. Dtc c1379/74 is output only in t ...