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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TP Sensor

Scan tool range 0-100 percent. TP angle is computed by the PCM from the Throttle Position (TP) sensor voltage. TP angle should display 0 percent at idle and 100 percent at wide open throttle.

Scan tool range 0.00-5.00 Volts. The voltage being monitored by the PCM on the TP sensor signal circuit.