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

Power Requirements

Operating current at the CCM's battery terminals should not exceed 1.0 amp while the CCM is awake; 200 milliamps is an approximately "normal" value. This may be higher if Delayed Accessory Bus (DAB) is active. The Delayed Accessory Bus system allows operation of the Audio System and/or power windows until the driver's door is opened or 15 minutes passes. When the CCM is asleep, the current should not exceed 15 milliamps. Operating current drawn by the IGN 1 and IGN 3 terminals of the CCM should not exceed 100 milliamps each.

For most CCM functions, the CCM will operate properly with a system voltage of 9-16 volts.