1-MBE900-05A.PDF - TROUBLESHOOTING - …

1 TROUBLESHOOTING THE ELECTRONIC ENGINE CONTROLSYSTEM .. GENERAL TROUBLESHOOTING .. FUEL INJECTION TROUBLESHOOTING .. MISFIRING CYLINDER .. STARTING DIFFICULTY (ENGINE ROTATES) .. NO START (ENGINE WILL NOT ROTATE) .. EXCESSIVE OIL CONSUMPTION .. EXCESSIVE CRANKCASE PRESSURE .. EXCESSIVE EXHAUST SMOKE (BLACK OR GRAY) .. EXCESSIVE BLUE SMOKE .. EXCESSIVE WHITE SMOKE .. ROUGH RUNNING OR STALLING .. LACK OF POWER .. LOW OIL PRESSURE .. HIGH ENGINE COOLANT TEMPERATURE .. LOW COOLANT TEMPERATURE .. POOR FUEL ECONOMY .. 15-165(Rev. 2005)All information subject to change without Bulletin 1 mbe900 056SE414 0404 Copyright 2005 DETROIT DIESEL CORPORATIONMBE900 SERVICE TROUBLESHOOTING THE ELECTRONIC ENGINE CONTROL SYSTEMP rior to performing TROUBLESHOOTING tasks familiarize yourself with Safety Instructions andPrecautions found in the General Information the electronic engine control system detects a fault, it broadcasts a message on the dash display will show the code "128.

2 " indicating there is an engine problems and solutions for the MBE 900 engine are listed in Table 15-1 and SolutionThe Engine Will Not CrankListed in Table 15-10 The Engine Turns SlowlyListed in Table 15-11 The Engine Cranks, But Won't StartListed in Table 15-12 The Engine Starts Only After Cranking for a Long TimeListed in Table 15-13 The Engine Starts, But DiesListed in Table 15-14 The Engine Fan Doesn't WorkListed in Table 15-15 The Engine Fan is Constantly OnListed in Table 15-16 Fuel Consumption is Too HighListed in Table 15-17 The Engine Performs Poorly, Does Not Develop FullPowerListed in Table 15-18 The Engine is in Emergency Running Mode (constantspeed 1300 rpm)

3 Listed in Table 15-19 The Coolant Temperature is Above NormalListed in Table 15-20 The Coolant Temperature is Below NormalListed in Table 15-21 The Cooling System is Losing CoolantListed in Table 15-22 There is Coolant in the Engine OilListed in Table 15-23 There is Foam in the Engine OilListed in Table 15-24 The Engine Oil Pressure is LowListed in Table 15-25 The Engine Exhaust is WhiteListed in Table 15-26 The Engine Exhaust is BlackListed in Table 15-27 The Engine Exhaust is BlueListed in Table 15-28 The Engine Brake Performance is PoorListed in Table 15-29 Cruise Control is Not WorkingListed in Table 15-30 The Fuel Pressure is Too High Downstream of the FuelFilterListed in Table 15-31 Fuel Flows Out of the Fuel Return LineListed in Table 15-32 Table 15-1 Engine TROUBLESHOOTING Problems and Recommended Solutions(1 of 2)All information subject to change without notice.

4 (Rev. 2005)6SE414 0404 Copyright 2005 DETROIT DIESEL CORPORATIONFrom Bulletin 1 mbe900 TROUBLESHOOTING THE ELECTRONIC ENGINE CONTROL SYSTEMP roblemRecommended SolutionFuel Flow Quantity is Too Low at the Overflow Valve andToo High at the FilterListed in Table 15-33 Fuel Flow Quantity is Too Low at the Overflow Valve andWithin Range at the FilterListed in Table 15-34 The Fuel Inlet Pressure is Too LowListed in Table 15-35 The Fuel Inlet Pressure is Too HighListed in Table 15-36 The Low Pressure Fuel System is LeakingListed in Table 15-37 Table 15-2 Engine TROUBLESHOOTING Problems

5 And Recommended Solutions(2 of 2)NOTE:To read the complete fault code, use a minidiag2 or Diagnostic Data Reader (DDR). Fault CodesThe engine fault codes and their causes are listed in Table 15-3:J1939 SPNJ1587 PIDJ1587 SIDFMID escription4545 3 Grid Heater Open Circuit4545 4 Grid Heater Shortened to Ground4545 14 Grid Heater Special Instructions4545 12 Grid Heater Defect8484 1 Vehicle Speed Sensor Anti-tamper Fault 18484 5 Vehicle Speed Sensor Anti-tamper Fault 28484 0 Vehicle Speed Sensor Data Valid but Above NormalRange8484 3 Vehicle Speed Sensor Open Circuit8484 4 Vehicle Speed Sensor Short to Ground8484 2 Vehicle Speed Sensor Data Erratic (Output shaft speedfrom J1939 ETCI not in normal range)

6 8484 14 Vehicle Speed Sensor not Plausible8686 14 Adaptive Cruise Control Fault9191 3 Accelerator Pedal Voltage Above Normal or Shorted High9191 4 Accelerator Pedal Voltage Below Normal or Shorted Low9191 2 Accelerator Pedal Data ErraticTable 15-3 DDEC-VCU and DDEC-ECU Fault Codes (1 of 7)(Rev. 2005)All information subject to change without Bulletin 1 mbe900 056SE414 0404 Copyright 2005 DETROIT DIESEL CORPORATIONMBE900 SERVICE MANUALJ1939 SPNJ1587 PIDJ1587 SIDFMID escription9494 3 Fuel Pressure Sensor Open Circuit9494 4 Fuel Pressure Sensor Short to Ground9494 0 Fuel Pressure High9494 1 Fuel Pressure Low9494 2 Engine Fuel Pressure Sensor Data Not Correct9494 14 Engine Fuel Pressure Sensor Measured Data NotCorrect9595 0 Fuel Restriction High9595 3 Fuel Restriction Circuit Failed High9595 4 Fuel Restriction Circuit Failed Low9898 14 Engine Oil Level Data Valid but

7 Very low9898 0 Engine Oil Level High9898 1 Engine Oil Level Low9898 3 Engine Oil Level Sensor Voltage High9898 4 Engine Oil Level Sensor Voltage Low9898 5 Engine Oil Level Sensor Open Circuit9898 2 Engine Oil Level Too High or Too Low100100 1 Engine Oil Pressure Low100100 3 Engine Oil Pressure Sensor Open Circuit100100 2 Engine Oil Pressure Sensor Data Erratic100100 4 Engine Oil Pressure Sensor Short to Ground100100 14 Engine Oil Pressure Too Low102102 0 Boost Pressure High102102 1 Boost Pressure Low102102 2 Boost Pressure Sensor Data Erratic102102 3 Boost Pressure Sensor Open Circuit102102 4 Boost Pressure Sensor Short to Ground102102 13 Boost Pressure Out of Range103103 7 Turbocharger 1 No Rev103103 14 Turbocharger 2 No Rev105105 3 Intake Manifold Temperature Sensor Open Circuit105105 4 Intake Manifold Temperature Sensor Short to Ground105105 0 Intake Manifold Temperature High107107 0 Air Filter Restriction HighTable 15-4 DDEC-VCU and DDEC-ECU Fault Codes (2 of 7)All information subject to change without notice.

8 (Rev. 2005)6SE414 0404 Copyright 2005 DETROIT DIESEL CORPORATIONFrom Bulletin 1 mbe900 TROUBLESHOOTING THE ELECTRONIC ENGINE CONTROL SYSTEMJ1939 SPNJ1587 PIDJ1587 SIDFMID escription107107 3 Air Filter Sensor Open Circuit107107 4 Air Filter Sensor Short to Ground110110 14 Engine Coolant Temperature Very High110110 0 Engine Coolant Temperature High110110 4 Engine Coolant Temperature Sensor Short to Ground110110 3 Engine Coolant Temperature Sensor Open Circuit111111 1 Coolant Level Low111111 3 Coolant Level Sensor Open Circuit111111 4 Coolant Level Sensor Short to Ground111111 14

9 Coolant Level Very Low 123 7 Optimized Idle (OI) Loop Fault158158 0 Switched Battery Voltage High158158 1 Switched Battery Voltage Low158158 2 Switched Battery Voltage Does Not match DDEC-ECUand DDEC-VCU168168 3 Battery Voltage High168168 4 Battery Voltage Low174174 3 Fuel Temperature Sensor Open Circuit174174 4 Fuel Temperature Sensor Short to Ground175175 3 Engine Oil Temperature Sensor Open Circuit175175 4 Engine Oil Temperature Sensor Short to Ground190190 0 Engine Speed High216 21614 Other DDEC-ECU Fault (Missing Information)230230 1 Idle Variation Switch (IVS) Wired Backwards404404 0 Turbo Compressor Out Temp High404404 1 Turbo Compressor Out Temp Low527 25412 Cruise Control DDEC-VCU Internal Error558 2305 Idle Validation Switch (IVS) Open Circuit558 23012 Both Idle Validation Switches ClosedIdle Validation Switch (IVS) not Idle and AcceleratorPedal Signal IdleIdle Validation Switch Idle (IVS) and Accelerator PedalSignal not Idle599 24212 Cruise Control Switch Contact Set + Coast Both SETand RES Contacts Closed at the Same TimeTable 15-5 DDEC-VCU and DDEC-ECU Fault Codes (3 of 7)(Rev.)

10 2005)All information subject to change without Bulletin 1 mbe900 056SE414 0404 Copyright 2005 DETROIT DIESEL CORPORATIONMBE900 SERVICE MANUALJ1939 SPNJ1587 PIDJ1587 SIDFMID escription601 24312 Cruise Control Switch Contact Resume & Accel Bothcontacts are closed at the same 2332 Anti-Theft Device Wrong Key609 2339 Anti-Theft No Transponder Code on Hardwire609 23311 Anti-Theft Calibration Error609 2330 Anti-Theft No Additional Key Can be Learned609 23312 DDEC-ECU Failure609 23314 DDEC-ECU Calibration Error611151 4 Oil Separator Diagnosis Short to Ground611151 12