Engine Diagnostic Chart (cont.) DTC SPN
FMI
Trouble Code Type
Error Description
523470
11
Pressure Relief Valve (PRV) Error
Rail pressure relief valve can’t be opened due to rail pressure; PRV error; rail pressure out of tolerance range; average rail pressure is outside the expected tolerance range
523470
12
Pressure Relief Valve (PRV) Error
Rail pressure relief valve open; PRV forced to open; system reaction initiated, fault path indicating shutoff condition in case of open PRV; power reduction may result
523470
14
Pressure Relief Valve (PRV) Error
Rail pressure relief valve open;PRV is open; PRV in rail is open; power reduction may result
523550
12
T50 Start Switch Error
Terminal 50: ECU receives a permanent signal; T50 start switch active for too long; Start information to starter T50 Switch erratic/defect
523601
13
Sensor Supply Voltage Monitor 3 Error
Internal Hardware Monitoring: the ECU detects a deviation of the target range of the power supply voltage of sensor output 3
523605
9
Timeout Error (CAN)
Timeout Error of CAN-Receive-Frame TSC1AE; Traction Control
523606
9
Timeout Error (CAN)
Timeout Error of CAN-Receive-Frame TSC1AR; Retarder
523612
3
Electrical Error
Reported supply over-voltage
523612
4
Electrical Error
523612
12
Software Error
Reported supply under-voltage ECU Internal software error; power reduction may result. Internal ECU monitoring detection reported error
523612
523613
523613
14
0
1
50950233/G0221
Software Error
Internal Hardware Monitoring: ECU CPU reset and cause is logged internally; no item created in error memory; software reset CPU, software visibility resets in DSM
Rail Pressure Error
Rail Pressure: fuel pressure in rail below target range dependant on engine speed; rail pressure disrupted, Positive governor deviation; maximum positive rail pressure deviation exceeded concerning set fuel flow; power reduction may result
Rail Pressure Error
Rail Pressure: fuel pressure in rail exceeds target range dependant on engine speed; rail pressure disrupted, maximum negative rail pressure deviation with metering unit on lower limit is exceeded
97
