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

System Components

HORN ASSEMBLY AND BRACKET
The horn operates over a battery input range of 9-14 Volts at -25°C (-13°F) to 10-15 Volts at 75°C (167°F).

RELAY ASSEMBLY
The relay assembly is rated at 35 Amps. The coil resistance is 85 Ohms.