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

TP Sensor

Display shows throttle angle from 0 to 100% and sensor voltage from 0.0 to 5.0 volts. The % display indicates the throttle angle opening from closed (0%) to fully open (100%). The AF ECU learns the closed throttle position whenever the TP sensor voltage is below about 0.9 volts. Learning the closed throttle position is necessary in order to adjust for production tolerances. The voltage display indicates the throttle angle opening from closed (about 0.5 volts) to fully open (about 4.0 volts).