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

Scan Tool Data Definitions

Audio Device: The scan tool displays Null/Tuner/CD Player. The radio detects the presence of the device that is operating.

Balance: The scan tool displays -50 to +50. The Balance between the right and left audio output.

Bass: The scan tool displays 0-100%. The percentage of bass selected at the radio.

Battery Voltage: The scan tool displays 0-18 Volts. The Voltage measured from the radio or amplifier's ignition positive voltage circuit to ground.

Chime Speaker: The scan tool displays Front Left, Front Right, LF Woofer, Back Left, Back Right, RF Woofer. The selected chime speaker is displayed.

Chime Volume: The scan tool displays 0-100%. The percentage at which the chime volume has been calibrated to.

External Audio Device: The scan tool displays Connected/Not Connected. The radio senses the presence of an external audio device.

Fade: The scan tool displays -50 to +50. The Fade between the front and rear audio output.

Ignition Since Current DTC: The scan tool displays 0-225 Cycles. The number of ignition cycles since a current DTC was set.

Microphone Level: The scan tool displays 0-100%. The percentage of microphone selected at the radio.

Midrange: The scan tool displays 0-100%. The percentage of midrange selected at the radio.

Noise Compensation: The scan tool displays On/Off. The selected switch position of the noise compensation system.

Signal Strength: The scan tool displays 0-225 dB. The signal strength of the radio frequency.

Treble: The scan tool displays 0-100%. The percentage of treble selected at the radio.

Volume: The scan tool displays 0-100%. The percentage of volume selected at the radio.