PUMP GP-PISTON 1763963 - Caterpillar

This code indicates that the 5 volt supply is missing from the sensor connector.System Response:During normal engine operation, the boost pressure fluctuates slightly. When the 5 volt supply is missing from the boost pressure sensor, the signal from the boost pressure sensor goes to a midrange value. The signal does not fluctuate. If the signal from the boost pressure sensor remains abnormally steady for more than 30 seconds, the Engine Control Module (ECM) activates this code.A snapshot is triggered. The ECM sets the value of the boost pressure to 100 kPa (14.5 psi).Possible Performance Effect:The engine power is reduced.Troubleshooting:Test Step 1. Repair the Open Circuit
Repair the open circuit on the supply wire between the ECM and the sensor. Expected Result:The problem is resolved.Results:
OK - The problem is resolved.STOP
Not OK - The problem is not resolved.Repair: Replace the sensor.STOP