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 Sensor: Testing and Inspection

Inspection




1. Connect the SSTs to the PCM.




2. Verify that the throttle valve is closed throttle position.
3. Turn the ignition switch to ON.
4. Measure the PCM terminal 3F voltage.

Specification:
Closed throttle position: 0.1-1.1 V
Wide open throttle: 2.8-4.5 V
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)


5. If not as specified, adjust the throttle position sensor.