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Home >> Volkswagen >> 2003 >> Jetta GLI >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> 2.8L - Fuel Injection Ignition [BDF] - [01-On Board Diagnostic] >> 01 On Board Diagnostic (OBD) >> Readiness code >> Readiness code, generating (overview)
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Readiness code, generating (overview)

Work steps 1 to 5: 

Work step/ Diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
1 Check DTC memory 02/---
  • Ignition on
--- --- --- ---
2 Erase DTC memory 05/---
  • Ignition on
--- --- --- ---
3 Adapting Throttle Valve Control Module 04/60
  • Ignition on
Throt. valve angle angle sensor 1 Throt. valve angle angle sensor 2 Learning step counter Result
      Specification: 3...93 % 97...3 % 8 ADP OK.
4 Requesting temperature 08/4
  • Idle speed
Idle speed Voltage supply for Motronic Engine Control Module (ECM) J220 Coolant temperature Intake air temperature
      Specification: 640...720 rpm 11.5...15.0 V 85.0...110.0 ° C Less than 80.0 ° C
5 Leak diagnosis 04/071
  • Idle speed
Reed condition Text Text Result
      Specification: Reed open --- Check END Syst. OK.

Work steps 6 to 9: 

Work step/ Diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
6 Oxygen Sensor (O2S) control status 08/30
  • Idle speed
Before Three Way Catalytic Converter (TWC) After Three Way Catalytic Converter (TWC) No display No display
      Specification: 111 xxx --- ---
7 Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) (Oxygen Sensor (O2S) aging) 04/34
  • Brakes operated
  • Accelerator in wide open throttle position.
Engine speed Three Way Catalytic Converter (TWC) temperature Dynamic factor of Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) Result
      Specification: Approx. 2300 rpm Greater than 380 ° C 1.00...2.50 B1-P1 OK.
8 Fuel supply system (part load) 04/216
  • Brakes operated
  • Accelerator in wide open throttle position.
Engine speed Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) lower part load Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) idle speed Result
      Specification: --- --- --- xxxxx100
Work step/ Diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
9 Oxygen Sensor (O2S) control status 08/30
  • Idle speed
Before Three Way Catalytic Converter (TWC) After Three Way Catalytic Converter (TWC) No display No display
      Specification: xxx 111 --- ---

Work steps 10 to 11: 

Work step/ diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
10 Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (Oxygen Sensor (O2S) aging) 04/43
  • Brakes operated
  • Accelerator in wide open throttle position.
Engine speed Three Way Catalytic Converter (TWC) temperature Oxygen Sensor (O2S) voltage, Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) Result
      Specification: Approx. 2300 rpm Greater than 380 ° C 0.100...0.900 V B1 P2 OK.
11 Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (operational readiness) 04/36
  • Idle speed
Oxygen Sensor (O2S) voltage, Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) Result No display No display
      Specification: 0.100...0.900 V B1 P2 OK. --- ---

Work steps 12 to 13: 

Work step/ diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
12 Three Way Catalytic Converter (TWC) 04/46
  • Brakes operated
  • Accelerator in wide open throttle position.
Engine speed Three Way Catalytic Converter (TWC) temperature Three Way Catalytic Converter (TWC) conversion rate Result
      Specification: Approx. 2300 rpm Greater than 380 ° C 0.00...0.99 Cat. B1 OK.
13 Fuel supply system (idle speed) 04/216
  • Idle speed
Engine speed Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) lower part load Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) idle speed Result
      Specification: --- --- --- xxxx1100

Work steps 14 to 16: 

Work step/ diagnosis Function/group Test prerequisites Display zone 1 Display zone 2 Display zone 3 Display zone 4
14 Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 (Tank ventilation system) 04/70
  • Idle speed
Evaporative Emissions (EVAP) Canister regulator valve 1 duty cycle TBV quality No display Result
      Specification: --- --- --- TBV OK. * See note
15 Secondary air system 04/77
  • Idle speed
Idle speed Air mass drawn in Air mass, secondary air system Result
      Specification: 640...720 rpm --- --- Syst. OK.
16 Read readiness code 15/---
  • Idle speed
--- --- --- ---

* TBV stands for Evaporative Emission (EVAP) Canister Purge Regulator Valve N80.