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

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Throttle Position Sensor: Testing and Inspection

Throttle Position Sensor Terminals:




Throttle Position Sensor Output Voltage:





- Disconnect negative cable at battery and TPS wires at the connector.
- Using ohmmeter, check the resistance between each two terminals.
- If idle switch check result is not satisfactory, adjust installation angle of TPS and then check again. Refer to ADJUSTMENT PROCEDURES.

- If found defective in above check, replace.
- Connect TPS connector securely and battery negative cable to battery.