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COMPONENT DESCRIPTIONS
Component
Air valve
When cold, supplies bypass air into dy
namic chamber
Detects in-gear condition;
Clutch switch
sends signal to control unit
E/L control unit
Detects that E/L is being applied; sends
signal to control unit
Engine control unit
Detects signals from input sensors and
switches; controls solenoid valve (Idle
speed control)
Detects when throttle valve fully closed;
Idle switch
sends signal to control unit
(-)
Ignition coil
Detects engine speed; sends signal to
terminal
control unit
Detects in-gear condition; sends signal to
Inhibitor switch
EC-AT control unit
Detects in-gear condition; sends signal to
Neutral switch
control unit
P/S pressure switch
Detects P/S operation; sends signal to
control unit
Solenoid valve (Idle
Controls bypass air amount
speed control)
Test connector
For Self-Diagnosis Checker and idle
speed adjustment
Detects throttle valve opening angle;
Throttle sensor
sends signal to control unit
Function
•
• Thermo wax type
•
Switch ON when clutch pedal
released
Installed on throttle body
Switch ON in "N " or " P"
range
Switch ON when in-gear
P/S: ON when steering wheel
turned right or left
•
•
•
1-pin connector (Green)
Installed on throttle body
ISC SYSTEM
Remarks
Engine speed increased to
shorten warm-up period
Installed in BAC valve
Controlled by duty signal
from control unit
With integrated air valve
Works idle-up
4A
Application
New
Previous
model
model
O
O
O
o
o
X
o
o
o
0
o
o
o
o
o
o
o
o
o
X
o
X
o
o
86U04A-058
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Table of Contents
Troubleshooting
