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Daewoo SCAN-200 Diagnostic Manual
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Daewoo SCAN-200 Diagnostic Manual

Euro iii diesel
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EURO III DIESEL
System Diagnostic Manual

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Summary of Contents for Daewoo SCAN-200

  • Page 1 EURO III DIESEL System Diagnostic Manual...
  • Page 2 (SCAN200) for accurate and effective service and shorter service hours. If there is any incorrect information or type in this manual, feel free to contact Daewoo Bus Corporation.

  • Page 3: Table Of Contents

    Table of contents 1. Diagnostic device for system ..........7 2. How to check engine DTCs ..........9 3. Check sensor data ............11 3-1. Select by group ............11 3-2. Select by function ..........15 4. Special mode ............24 4-1. Oscilloscope ............24 4-2. Measuring frequency ..........32 4-3.
  • Page 4 3.9 : Faulty main relay in ECU ......... 76 4.1 : Fault due to abnormal engine shut-off ......78 4.2 : Faulty crank sensor..........80 4.3 : Faulty cam sensor ...........82 4.4 : Faulty engine RPM sensor ........84 4.5 : Faulty EEPROM in ECU ........86 4.6 : Recovery function when activation time in ECU is recognized and is faulty ..........88 4.7 : Pressure limit valve open due to excessive rail pressure ..90...
  • Page 5 1. Diagnositc device for system There are two ways to check DTCs of the DL08 and DV11 engines for the purpose of diagnosis: using the diagnosis device (SCAN-200) and checking the blinking number of the engine CHECK lamp. This manual mainly describes diagnosis procedures with the device (SCAN-200) for faster and accurate diagnosis.
  • Page 6 1. Connect the diagnostic adapter to the vehicle diagnosis adapter. 2. Push the vehicle main switch(Berrery main S/W)to the “ON” position. 3. Push the vehicle ignition switch to the “ON” position. 4. Push the diagnosis device (SCAN-200) “PWR(power)” switch “ON”.

  • Page 7: How To Check Engine Dtcs

    System Diagnostic Manual 2. How to check engine DTCs ■ Push diagnosis device (SCAN-200) ‘PWR’ S/W on Press MAIN MENU SySTEM SELECT Vehicle/engine diagnosis 1] Vehicle/engine diagnosis 1] Engine system diagnosis Press 2] General OBD-II Enter 2] Vehicle system diagnosis (ABS/ASR)

  • Page 8: Check Sensor Data

    System Diagnostic Manual 3 FAULTS FOUND CB 4.2 ENGINE RPM SENSOR(CRANKSHAFT SIDE) B=BLINK CODE, C=CURRENT FAULT, H=HISTORICAL FAULT B=BLINK CODE, C=CURRENT FAULT, H=HISTORICAL FAULT DV11 STEP3 engine ECU DV11 STEP3 engine ECU [SAE Code] : P0335 Press CB 4.2 Engine RPM sensor (Crankshaft side) [Possible cause] [HELP] HB 7.1 diagnostic lamp...

  • Page 9: Select By Group

    System Diagnostic Manual 3. Check sensor data 3-1. Select by group ■ Data group (02-1) Select check item Select sensor data type DV11 STEP3 engine ECU DV11 STEP3 engine ECU 1] Check DTC 1] Select by group 2] Check sensor data 2] Select by function Press 3] Erase DTC...

  • Page 10: Faulty Coolant Temperature Sensor

    System Diagnostic Manual Press [PgDn] key Check sensor data Check sensor data 31. Coolant temperature ················· 25.0 [°C] 41. Faulty cooling fan speed sensor ··········· 0 32. Faulty coolant temperature sensor ······· 0 42. Cooling fan speed ·················· 2000 [rpm] Press 33.
  • Page 11 System Diagnostic Manual ■ Data group (02-2) Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01] Data group [02-1] 01. Self-diagnosis lamp ······················· [OFF] 02. Engine RPM requested from ASR ··0 [rpm] 02] Data group [02-2] Press 03.
  • Page 12 System Diagnostic Manual ■ Data group (03) Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01] Data group [02-1] #1 Cyl Dynamic compensation fuel amount ·······0.0[mg/st] 02] Data group [02-2] #2 Cyl Dynamic compensation fuel amount ·······0.0[mg/st] Press #3 Cyl Dynamic compensation fuel amount ·······0.0[mg/st] 03] Data group [03]...
  • Page 13 System Diagnostic Manual 3-2. Select by function (01) Engine start data Select sensor data type Select sensor data LID DV11 STEP3 engine ECU DV11 STEP3 engine ECU 1] Select by group [01] Engine start data [02] Injector data 2] Select by function Press [03] Voltage data [Enter]...
  • Page 14 System Diagnostic Manual (02) Injector data Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01. Accelerator pedal depression ······ 0.0 [%] [01] Engine start data 02. Battery voltage ····························24.1 [V] [02] Injector data Press 03. ECU condenser #1 voltage ·········81.0 [V] [03] Voltage data [Enter] 04.

  • Page 15: Faulty Battery Voltage

    System Diagnostic Manual (03) Voltage data Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01. Battery voltage ····························24.1 [V] [01] Engine start data 02. Faulty battery voltage ··························· 0 [02] Injector data Press 03. ECU condenser #1 voltage ·········81.0 [V] [03] Voltage data [Enter] 04.
  • Page 16 System Diagnostic Manual (04) Fuel pressure data Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01. Accelerator pedal depression ······ 0.0 [%] [01] Engine start data 02. Battery voltage ····························24.1 [V] [02] Injector data Press 03. Engine RPM ································ 0 [rpm] [03] Voltage data [Enter] 04.

  • Page 17: Faulty Accelerator Pedal

    System Diagnostic Manual (05) Engine brake data Select sensor data LID Check sensor data DV11 STEP3 engine ECU 01. Accelerator pedal depression ······· 0.0[%] [01] Engine start data 02. Faulty accelerator pedal sensor ··········· 0 [02] Injector data Press 03. Engine brake #1 operation ············ [OFF] [03] Voltage data [Enter] 04.