Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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Power Requirements

The BCM will operate properly with a system voltage of 9-16 volts.

Operating current measured at the BCM battery terminals in the awake mode should not exceed the following values:
^ 75 milliamps with the ignition switch in the OFF position
^ 250 milliamps with the ignition switch in the RUN position

Operating current measured at the BCM battery terminals in the sleep mode should not exceed the following values:
^ Two milliamps on vehicles without theft deterrent (Theft Deterrent System)
^ Three milliamps on vehicles with theft deterrent (Theft Deterrent System)

Operating current measured at the BCM IGN1 and IGN3 terminals should not exceed 15 milliamps.