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)

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Throttle Position Sensor: Testing and Inspection

Throttle Position Sensor Test:




TPS Test Results Table:




1. Disconnect throttle position sensor harness connector.
2. Make sure that resistance between terminals (a) and (b), (d) and (e) changes when opening throttle valve manually.
3. If NG, replace throttle position sensor.