Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Throttle Position Switch: Testing and Inspection





Circuit Diagram

Troubleshooting Hints

If the idle position switch harness is OK, but the idle position switch output is abnormal, check for the following items.
- Poorly adjusted accelerator cable or auto-cruise control cable.
- Poorly adjusted idle position switch (fixed SAS).





Using Scan Tool





Harness Inspection Procedures

Sensor Inspection


1. Disconnect the idle position switch connector.





2. Check the continuity between terminal 1 and sensor ground.





3. If out of specification, replace the idle position switch.