Fuel Pump Relay Module

Posted by Jennifer S. Green in Fuel
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Fuel Pump Relay Module

Fuel Pump Relay Module -
For most EEC IV equipped vehicles, the PIP signal is the primary input for the control of the fuel pump relay. Integrated Control Module The integrated control module (ICM) is a metal box, usually located on the radiator firewall, that contains This control of the fuel pump relay by the PCM allows other modules to affect the operation of the fuel pump. When diagnosing the relay, do not assume that the PCM is the cause of the issue, because something could be causing the PCM to If the ignition switch is on for 1/2 second and the engine is not cranked, the PCM opens the circuit from the ASD relay winding to ground. Under this condition, the ASD relay points open and voltage is no longer supplied to the fuel pump, This action

keeps.the fuel pump operating and the engine running, even though the fuel pump relay is defective. with a power module and logic module, the engine must be cranked before the power module grounds the ASD relay winding.The ignition key energizes the EEC power relay and, in most vehicles, a separate fuelpump relay. 7.1 FuelPump Relay (FPR) The FuelPump Relay turns on the fuel pump as signalled by the control module. See Fig. 71 . When the vehicle SAE J1930 Revised JUN93 Acceptable Fan Control Fan Control Module Fan Control Relay Fan Motor Control Ralay Fast Fuel Module Fuel Pressure Fuel Pressure Regulator Fuel Pump Fuel Pump Relay Fuel Quality Sensor Fuel Regulator  Fuel Level Sensor EE Module Fuel Pressure1 See Table 4 Fuel

Pressure.Regulator1 EE EE Relay EE Sensor1 Fuel Memory) Flexible Fuel Flexible Fuel Sensor Fourth Gear FP (Fuel Pump) FP (Fuel Pump) Module Freeze Frame Front In a latemodel General Motors fuel pump circuit, the powertrain control module (PCM) supplies voltage to the winding of the fuel pump relay when the ignition switch is turned on. This action closes the relay points and voltage is supplied One switch is vacuum controlled and the other is controlled by the EEC module, which provides power to the fuel pump under various operating conditions. On 198284 models, the electrical system has a single fuel pump control relay, Fig.Relays and modules 1986 1992 Electrical System Fuses, Relays, Modules Table i. seat heater relay,

left/right.All Beneath carpeting forward of left / right front seat Fuel pump power relays All gasoline Under right rear seat Fuel pump relay 

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