Integrated Control Relay Module: Locations

For applications with two speed fuel pumps, a normally closed low speed fuel pump relay is wired into the fuel pump ground circuit. With the low speed fuel pump relay contacts in the normally closed position, there is no extra resistance in the ground circuit for high speed operation. For low speed fuel pump operation, the PCM will ground the Low Fuel Pump (LFP) circuit, which opens the relay contacts. With the relay contacts open, the fuel pump ground circuit now passes through a resistor that is wired into the circuit.







The Constant Control Relay Module is mounted on bracket, behind engine coolant reservoir. This model also uses a Fuel Pump Driver Module. Fuel Pump Relay