Briggs & Stratton VANGUARD M490000, Repair Manual

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DTC P0230 Signal Voltage Low or Open (Non-Scan Diagnostics)
Step Action Yes No
1 1. Disconnect and reconnect fuel pump module and ECM J2 (Black) connectors.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
Go to step 2. Problem corrected.
2 1. Turn Ignition OFF, and then back ON.
2. Does fuel pump run for 2 seconds?
Fuel pump module OK. Go to step 3.
3 1. Turn Ignition OFF.
2. Back probe terminal 2 (Red wire) of fuel pump module connector.
3. Connect terminal 2 back probe to red meter test lead on DVOM.
4. Connect black meter test lead on DVOM to a known good ground.
5. Set DVOM to read volts DC.
6. Turn Ignition ON, Engine OFF.
7. Does DVOM read 12.2-13.5 volts DC?
Go to step 4. Perform visual
and continuity
check of Main
Power Relay and
20 amp Battery
fuse (Yellow).
4 1. Turn Ignition OFF.
2. Disconnect fuel pump module connector.
3. Remove probe from terminal 2, and back probe terminal 1 (Blue/Yellow wire) of
fuel pump module connector.
4. Connect terminal 1 back probe to red meter test lead on DVOM.
5. Disconnect ECM J2 connector.
6. Back probe terminal J2-09 (Blue/Yellow wire) of ECM J2 connector.
7. Connect terminal J2-09 back probe to black meter test lead on DVOM.
8. Set DVOM to read resistance.
9. Does DVOM read 0.5 ohm or less?
Replace fuel pump module. Resistance reading
is above 0.5 ohm.
Check terminals
for corrosion or
replace EFI wire
harness.
Fuel Pump Module Connector ECM J2 (Black) Connector
Not for
Reproduction