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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, Accessory Electronic Module (AEM) >> Description Parameters >> Relay Engine Block Heater
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Relay Engine Block Heater

The value indicates the status of control module output terminal #5 for the relay for the engine block heater.

Low = Output not activated. The supply voltage is approximately 0 V and the relay is not activated.

High = Output activated. The supply voltage is approximately battery voltage and the relay is activated. The heater will start if it is connected.

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