acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

Emission Control Systems > < Alternator FR Signal <--> [Voltage Signal]|Description and Operation|Page 5040
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This signals the ECM (Engine Control Module) or PCM (Powertrain Control Module) when the Alternator (ALT) is charging.

NOTE:  

The L and LS model radio has a coded theft protection circuit. Be sure you get the customer's code number before disconnecting the battery
cable.

Emission Control Systems > < Alternator FR Signal <--> [Voltage Signal]|Description and Operation|Page 5040