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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Throttle Position Switch: Testing and Inspection

Throttle Valve Switch Testing:







1. Disconnect throttle valve switch harness connector.
2. Test continuity across the terminals with the accelerator pedal depressed in steps as shown on the chart.
3. If readings are not as indicated, adjust switch and check again (refer to ADJUSTMENT PROCEDURES). Replace switch if proper readings cannot be obtained.