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

INSPECTION
1. Disconnect the PCM connector.




2. Connect the SST NOS to the DLC.
3. Turn the ignition switch ON.




4. Select the PID/DATA monitor and record function of the NGS.
5. Select "TPS" on the NOS display. NOS measures and shows the voltages.
6. Rotate the throttle linkage by hand and verify that the voltage is within specification.




7. If not as specified replace the throttle position sensor.

Note: The throttle position sensor is not adjustable.