Diagnostic procedures for a VAG diagnostics
Database for coding vehicle control units Volkswagen - VAG
Software versions
VIN - Code validator
Engines / Petrol / ME 7.1.1 general / creation of Readiness (BBK)
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Mark 
Model
Control unit
Diagnostic operation
Diagnostic procedure
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connect with the control unit XX - engine
Electronic accelerator pedal - Adaptation
XX - Measured values group XXX
required values:
field X = X-XX% (throttle valve angle sensor X)
field X = X-XX% (throttle valve angle sensor X)
field X = X - X (Adaptation)
field X = ADP-OK (may take several minutes)
initial conditions / engine temperature - Test
Conditions:
- engine speed = idling
XX - Measured values group XXX
required values:
field X = XXX - XXX rpm (engine speed)
field X = XX - XXX °C engine temperature
field X = lambda control value
field X = lambda control value
aeration of fuel tank - Test
Conditions:
- engine speed = idling
XX - Measured values group XXX
required values:
field X = X - XXX% (opening angle TEV - alternating)
field X = lambda control value ( mean value)
field X = idle speed controller %
field X = TEV OK (may take several minutes)
cylinder row X - Lambda-sensor upstream of catalyst - monitoring of ageing
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = XXX°C - XXX°C (temperature of exhaust gases - cylinder row - X)
field X = > X,X (cylinder row - X - dynamic value)
field X = BX-SX-OK
cylinder row X - Lambda-sensor upstream of catalyst - monitoring of ageing
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = XXX°C - XXX°C (temperature of exhaust gases - cylinder row - X)
field X = > X,X (cylinder row - X - dynamic value)
field X = BX-SX-OK
Lambda-sensor downstream of catalyst - readiness for operation
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = X - X V (Lambda sensor(s) - cylinder row - X - voltage)
field X = BX-SX-OK
field X = X - X V (Lambda sensor(s) - cylinder row - X - voltage)
field X = BX-SX-OK
Lambda-sensor downstream of catalyst - mistaking
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
XX - Measured values group XXX
field X = > XX g/s (Intake air mass sensor)
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = Syst.OK
cylinder row X - Lambda-sensor downstream of catalyst - monitoring of ageing
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = >XXX °C (temperature of exhaust gases - cylinder row - X)
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = BX-SX-OK
cylinder row X - Lambda-sensor downstream of catalyst - monitoring of ageing
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = >XXX °C (temperature of exhaust gases - cylinder row - X)
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = BX-SX-OK
Lambda sensor(s) - cylinder row X - delta-lambda
XX - Measured values group XXX
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = load %
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = -X,XX - +X,XX (cylinder row - X - delta-lambda)
field X = BX-SX-OK
Lambda sensor(s) - cylinder row X - delta-lambda
XX - Measured values group XXX
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = load %
field X = X - X V (Lambda sensor(s) X - cylinder row - X - voltage)
field X = -X,XX - +X,XX (cylinder row - X - delta-lambda)
field X = BX-SX-OK
catalyst - cylinder row - X - check of conversion
Conditions:
- tests in these groups successfully completed XXX,XXX ,XXX,XXX,XXX,XXX,XXX,XXX
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = XXX°C - XXX°C (catalyst temperature cylinder row - X)
field X = > X (catalyst - conversion)
field X = Kat.BX OK
catalyst - cylinder row - X - check of conversion
Conditions:
- tests in these groups successfully completed XXX,XXX ,XXX,XXX,XXX,XXX,XXX,XXX
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = XXX°C - XXX°C (catalyst temperature cylinder row - X)
field X = > X (catalyst - conversion)
field X = Kat.BX OK
secondary air system - cylinder row X - Test
Conditions:
- tests in these groups successfully completed XXX,XXX
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = Intake air mass sensor
field X = -XX - +XX% (relative secondary air mass - cylinder row X)
field X = Syst.OK
secondary air system - cylinder row X - Test
Conditions:
- tests in these groups successfully completed XXX,XXX
XX - Basic settings group XXX
Start
depress - brake pedal
depress briefly - accelerator pedal
the control unit increases the engine speed - XXXX rpm
required values:
field X = TestON
wait XXs
required values:
field X = XXXX rpm (engine speed)
field X = Intake air mass sensor
field X = -XX - +XX% (relative secondary air mass - cylinder row X)
field X = Syst.OK
readiness - Test
XX - readiness
required values: XXXXXXXX
XX - end of communication
Created on: XX.XX.XXXX XX:XX:XX (hnz) Copyright © XXXX-XXXX, AutoComSoft Ltd All rights reserved.
You are not logged! System works in DEMO mode only now where numbers are replaced with X characters. For 49 EUR only You will get access into full system. You can pay by credit card or bank transfer. Click BUY button for purchase and You will get login to diagnostic procedures database imediatelly.