Dtc P0230 Fuel Pump Module Fault; Circuit Description; Diagnostic Aids - Briggs & Stratton Vanguard EFI 380000 Repair Manual

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Circuit Description

The fuel pump module is controlled by the ECM via
the ground circuit of the fuel pump plug. If resistance is
unacceptable in that circuit the fuel pump DTC is set.
• DTC P0230 shows that the signal voltage is low,
which indicates voltage is lost to the pump, that circuit
resistance is high, or there is an open connection.
When power is supplied, the ECM activates the fuel pump
module. The fuel pump module delivers fuel to the fuel
rail and fuel injector.
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DTC P0230 FUEL PUMP MODULE FAULT

Diagnostic Aids

The following conditions may have caused the fuel pump
to malfunction:
1. Intermittent short in the fuel pump power feed circuit.
2. Fuel pump has an intermittent internal problem.
3. Poor ECM connection.
4. Inspect wire harness connectors for backed out
terminals, improper mating, broken locks, improperly
formed or damaged terminals, and poor terminal to
wire connection.
5. Inspect wire harness for damage.
Always clear DTCs after performing repairs.