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Home >> Volvo >> 1998 >> S70 L5-2.4L VIN 55 B5254S >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Description of On-Board Diagnostics >> General System Description >> Control Functions >> Fuel Pump Control
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Fuel Pump Control

FUEL PUMP CONTROL





The Engine Control Module (ECM) activates the main relay (2/32) when the ignition is switched on. At the same time the Fuel Pump Relay (2/23) is activated for one second to enable the Fuel Pump (FP) (6/31) to build up pressure.
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