There is a ground in a harness between the operator
Go to Step 3.
panel and the fuel pressure switch. Replace the
3. Disconnect the harness from the fault alarm. Check for voltage between Pin 2 and
Socket 1 in the harness connector with a voltage tester or a digital multimeter.
Replace the fault alarm
Go to Step 4.
4. Check for voltage between Socket 1 in the harness connector and machine ground.
Replace the harness or make a ground wire to the
Go to Step 5.
5. Check for continuity through the harness between the operator panel and the fault
Make a connection between Socket 1 and Pin 2 in the harness connector that
connects to the fault alarm.
Disconnect the harness plug from the operator panel.
Check for continuity between connections 2 and 10 with a continuity tester or a digital
Go to Step 6
Harness has an open. Replace the harness.