Closed Throttle Position Switch (Dohc) - Mitsubishi 1989-1993 GALANT Service Manual

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FUEL SYSTEM <DOHC>
CLOSED THROTTLE POSITION SWITCH <IS89 models>
Terminal
voltage
Throttle shaft
turning angle
OPERATION
The closed throttle position switch functions to
l
convert (to HIGH/LOW-level voltage) data as to
w h e t h e r t h e a c c e l e r a t o r i s d e p r e s s e d o r
leased, and to input that voltage (as signals) to
the engine control module. The engine control
module, based upon those signals, regulates the
idle air control motor.
TROUBLESHOOTING HINTS
If there is an abnormal condition of the closed throt-
tle position switch switch output even though the
results of the checking of the closed throttle posi-
tion switch harness and of the component itself in-
dicate a normal condition, the cause may be pre-
sumed to be one of the following.
Throttle position
sensor connector
Component side
connector
Harness side
connector
l
r e -
(1) Improper adjustment of the accelerator cable or
(2) Improper adjustment of the closed throttle posi-
TSB
Revision
Engine control module
Voltage within the engine control module is ap-
plied, by way of the resistance, to the closed
throttle position switch.
When the foot is taken off the accelerator, the
closed throttle position switch is switched ON,
so the current is grounded.
As a result, the closed throttle .position terminal
voltage changes from HIGH to LOW level.
the automatic-cruise-control cable.
tion switch (fixed SAS).