1-SECM-03-83.PDF - FLASH CODE 83 – EGR TEMP, EGR DELTA .

83 FLASH CODE 83 – EGR TEMP, EGRDELTA-PRESSURE, EXHAUST TEMP, OREXTERNAL PUMP PRESSURE HIGHSectionPage83.1DESCRIPTION OF FLASH CODE 83 .83-383.2SAE J1587 EQUIVALENT CODE FOR FLASH CODE 83 .83-683.3TROUBLESHOOTING FLASH CODE 83 .83-7

(Rev. 2/03)83-2From Bulletin 1-SECM-03All information subject to change without notice.6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATION

DDEC III/IV SINGLE ECM TROUBLESHOOTING GUIDE83.1 DESCRIPTION OF FLASH CODE 83Flash Code 83 is used to identify exhaust temperature, or external pump pressure high.Flash Code 83 is used to identify EGR Delta-Pressure high, or EGR temperature high. Theseconditions are typically due to:EGR valve stuck openEGR valve stuck partly openFor EGR valve assembly, see Figure 83-1, Series 50 engines. For Series 60 engines,see Figure 83-2.All information subject to change without notice.(Rev. 2/03)6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATIONFrom Bulletin 1-SECM-0383-3

83.1DESCRIPTION OF FLASH CODE 831. PWM Valve Assembly6. Coolant Lines2. EGR Temperature Sensor7. Bracket3. EGR Pressure Sensor8. Pressure Sensor Connection/Hoses4. EGR Cooler9. Bolts5. ClampsFigure 83-1EGR Exhaust-to-Rear Assembly, Series 50 Engine(Rev. 2/03)83-4From Bulletin 1-SECM-03All information subject to change without notice.6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATION

DDEC III/IV SINGLE ECM TROUBLESHOOTING GUIDE1. Delta-P Sensor8. Clip2. Stud9. Delta-P Tube3. Isolator10. Nut4. Hose Clamp11. Bracket5. Delta-P Tube12. Thermostat Housing6. Nut13. Bolt7. Delivery PipeFigure 83-2Delta-P Sensor and Related Parts, Series 60 EngineAll information subject to change without notice.(Rev. 2/03)6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATIONFrom Bulletin 1-SECM-0383-5

83.2SAE J1587 EQUIVALENT CODE FOR FLASH CODE 8383.2 SAE J1587 EQUIVALENT CODE FOR FLASH CODE 83Changes to PIDs now have identifiers 412 or 154 for EGR temperature and 411 or 155 for EGRDelta-P, depending on ECM software used.Codes 411/412 are used with ECM software 33 or higher.Codes 154/155 are used with ECM software 32 or lower.The SAE J1587 equivalent code for Flash Code 83 is p 173/0, exhaust temperature high; s411/155/0, EGR Delta-Pressure high, 412/154/0, EGR temperature high, and p 73/0, externalpump pressure high.For all EGR related codes, always perform the basic checks in EGR-1. Refer to section 10.16 forSeries 50 engines. For Series 60 engines, refer to section 10.18.(Rev. 2/03)83-6From Bulletin 1-SECM-03All information subject to change without notice.6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATION

DDEC III/IV SINGLE ECM TROUBLESHOOTING GUIDE83.3 TROUBLESHOOTING FLASH CODE 83This code indicates the component temperature or pressure went above calibrated limits. Possiblecauses include:1. Code 173/0Restricted muffler/converter, exhaustInjector (s)2. Code 412/154/0EGR valve leakingEGR coolerLow coolantRestricted air filterInjector (s)3. Code 411/155/0EGR valve leakingRestricted exhaust components (muffler/converter)The following procedure will troubleshoot Flash Code 83 for the EGR system.83.3.1Check for Other Codes1. Turn ignition ON.2. Plug in DT.3. Read active codes.[a]If a codes 63 (s 060) or 31 (s 52) are logged with 412 or 411 (or 154/155), servicethose codes first.[b]If codes 63 (s 060) or 31 (s 52) are not logged, continue this procedure.Refer to section 83.3.2.83.3.2Vehicle Air TestThe test for vehicle air system was performed during EGR-1. Refer to section 10.16 for Series 50engines. For Series 60 engines, refer to section 10.18.1. If the test for vehicle air system performed during EGR-1 did not pass, resolve low vehicleair pressure.2. If the test for vehicle air system performed during EGR-1 passed, replace the EGR valveand refer to section 83.3.3.All information subject to change without notice.(Rev. 2/03)6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATIONFrom Bulletin 1-SECM-0383-7

83.3TROUBLESHOOTING FLASH CODE 8383.3.3Verify RepairsPerform the following steps to verify repairs for the EGR valve:1. Connect all connectors.2. Start and run the engine.3. Road test the engine.[a]If code 83 was not logged, no further troubleshooting is required.[b]If code 83 was logged, please review this section from the first step to find the error.Refer to section 83.3.1. If this is the second time through the procedure, call DetroitDiesel Technical Service, or try a test ECM.(Rev. 2/03)83-8From Bulletin 1-SECM-03All information subject to change without notice.6SE497 0207 Copyright 2003 DETROIT DIESEL CORPORATION

Dec 23, 2013 · DDEC III/IV SINGLE ECM TROUBLESHOOTING GUIDE 1. Delta-P Sensor 8. Clip 2. Stud 9. Delta-P Tube 3. Isolator 10. Nut 4. Hose Clamp 11. Bracket 5. Delta-P Tube 12. Thermostat Housing 6. Nut 13. Bolt 7. Delivery Pipe Figure 83-2 Delta-P Sensor and Related Parts, Series 60 Engine All