DISC 7D8185 - Caterpillar

PID 0102 FMI 03Conditions Which Generate This Code:The Engine Control Module (ECM) detects the following conditions:
The signal voltage from the boost pressure sensor is greater than 4.95 VDC for more than two seconds.
The ECM has been powered for at least two seconds.
The engine is not running or the rack position is less than 50 percent with the engine retarder off.System Response:The ECM will log the diagnostic code and the ECM will trigger a snapshot. The check engine lamp will illuminate while this diagnostic code is active. The ECM will default to 100 kPa (14.5 psi) for boost pressure.Note: The boost pressure that is displayed on the Caterpillar Electronic Technician (ET) is the default value for boost pressure minus the atmospheric pressure.Possible Performance Effect:The engine will experience low power when this diagnostic code is active.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Engine Pressure Sensor Open or Short Circuit - Test"Results:
OK - STOP