Federal

DESCRIPTION
The closed throttle position switch converts data as to whether the accelerator is depressed or released to high/low voltage and to inputs that voltage as signals to the engine control module. The engine control module, based upon those signals, regulates the idle-speed control motor.
Voltage within the engine control module is applied to the closed throttle position switch. When accelerator is released the closed throttle position switch is switched ON grounding the current. As a result, the closed throttle position switch terminal voltage changes from HIGH to LOW level.

TROUBLESHOOTING HINTS
1. If there is an abnormal condition of the closed throttle position switch output even though the results of the checking of the closed throttle position switch harness and of the component itself indicate a normal condition, the cause may be presumed to be one of the following.
- Improper adjustment of the accelerator cable or the cruise-control cable.
- Improper adjustment of the fixed speed adjusting screw.