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

Electrical Specifications

HEATED OXYGEN SENSOR (HO2S) OUTPUT VOLTAGE:
Rich Condition [1] 0.7 - 1.0 Volts
Lean Condition [1] 0.0 - 0.3 Volts

H02S HEATER RESISTANCE
Resistance between terminals 3 and 4 10 - 40 Ohms

[1] with vehicle in closed-loop.