Briggs & Stratton VANGUARD 810 EFI Repair Manual page 55

Section 2: Troubleshooting DTCs
Step
1. Disconnect and reconnect fuel pump module con-
nector.
2. Turn Ignition ON, Engine OFF.
1
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
1. Turn Ignition OFF.
2. Back probe terminal 1 (Blue/Yellow wire) of fuel
pump module connector.
3. Connect terminal 1 back probe to red meter test
lead on DVOM.
4. Connect black meter test lead on DVOM to a
2
known good ground.
5. Set DVOM to read volts DC.
6. Attempt to start engine while observing voltage on
DVOM.
7. Is reading below 1.0 volts DC?
NOTE: It is OK if engine starts.
Figure 2-40 Fuse/Relay Block.
DTC P0232 Fuel Pump Fault
Scan and Non-Scan Diagnostics
Action
Main Power Relay
Battery Fuse
Yes
Go to step 2.
System
performing OK.
1
1
Figure 2-41 Fuel Pump Module Connector.
No
Problem
corrected.
Reading is above
1.0 volts DC.
Replace fuel pump
module.
2
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