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Home >> Volvo >> 2007 >> C70 Automatic >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Accessory Electronic Module (AEM), Accessory USB Unit (AUU) And Central Electronic Module (CEM) Diagnostic Trouble Codes >> AEM-6C50: Alarm Output P0. Signal Too Low Or Signal Missing (2006-2013) >> Signal Too Low Or Signal Missing >> Checking The Component And Wiring
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Checking The Component And Wiring

Check the signal cable for alarm output P0. Check between accessory electronic module (AEM) terminal #B15 and the connector for the alarm unit. Check for a short-circuit to ground. Check for an open-circuit.

Remedy as necessary.

Other information: 

Fig 1: Accessory Electronic Module Ground Terminals
GLL106164Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS CORPORATION