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Home >> Volvo >> 2009 >> C30 R-Design, Automatic >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Accessory Electronic Module (AEM), And Accessory USB Unit (AUU) - Specifications, Other >> Vehicle Communication Information, Central Electronic Module (CEM) (2010-2013) >> Description Of Parameters >> Automatic Start/Stop Of Engine >> Secondary Battery Relay
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Secondary Battery Relay

Shows if the Central electronic module (CEM) requests from Engine control module (ECM) that the secondary battery relay should be activated or not. Central electronic module (CEM) requests activation of the relay when the secondary battery needs to be charged.

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