Diagnostic procedures for a VAG diagnostics
Database for coding vehicle control units Volkswagen - VAG
Software versions
VIN - Code validator
Engines / Petrol / 1.4/110/125/103/118/132 kW TSI CAVA/CAVB/CAVC/CAVD/CAVE / creation of Readiness
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Mark 
Model
Control unit
Diagnostic operation
Diagnostic procedure
This operation was considered useful 2x.
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Conditions:
- exhaust system - tightness of line = OK
- intake air temperature > XX°C
- pedal switch: brake pedal + clutch pedal = OK
- engine temperature = XX°C
- air-conditioning = OFF
- appliances = OFF
- number of faults = X
Note:
- The readiness Code must be created as the last diagnostics task. Later deletion of the memory could also result in deletion of the created readiness Code.
Start the engine
wait XXXs
engine speed = idling
connect with the control unit XX - engine
XX - Measured values group XXX
required values
field X = XXXXXXXX
xxxxxxxX - engine temperature > XX°C
xxxxxxXx - engine speed < XXXX rpm
xxxxxXxx - throttle valve - closed
xxxxXxxx - lambda control = OK
xxxXxxxx - idling = OK
xxXxxxxx - air-conditioning = OFF
xXxxxxxx - catalyst temperature > XXX °C
Xxxxxxxx - number of faults = X
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
required values
field X = Test OFF -> TEST ON
wait
required values
field X = ADP-OK
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
wait
required values
field X = xXXXxXxX
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
wait
required values
field X = xXXXxXXX
upon achievement of values - continue
engine speed = idling
XX - Measured values group XXX
increase rpm to XXXX rpm
required values field X (Lambda-sensor upstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = readiness for operation
xx?xx = heating of lambda probe(s)
upon achievement of values - engine speed = idling
XX - Measured values group XXX
increase rpm to XXXX rpm
required values field X (Lambda-sensor upstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = readiness for operation
xx?xx = heating of lambda probe(s)
upon achievement of values - engine speed = idling
XX - Basic settings group XXX
activate default settings
follow the diagnostics instructions
may take several minutes
required values:
field X = Syst-OK
field X = Syst-OK
field X = Syst-OK
upon achievement of values - continue
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
upon achievement of values - continue
check download of the readiness code of the readiness functions
if values are not achieved:
check of error memory
do a test drive
- idling
- partial load
- full load (engine speed > XXXX rpm)
- deceleration
repeate this test
- exhaust system - tightness of line = OK
- intake air temperature > XX°C
- pedal switch: brake pedal + clutch pedal = OK
- engine temperature = XX°C
- air-conditioning = OFF
- appliances = OFF
- number of faults = X
Note:
- The readiness Code must be created as the last diagnostics task. Later deletion of the memory could also result in deletion of the created readiness Code.
Start the engine
wait XXXs
engine speed = idling
connect with the control unit XX - engine
XX - Measured values group XXX
required values
field X = XXXXXXXX
xxxxxxxX - engine temperature > XX°C
xxxxxxXx - engine speed < XXXX rpm
xxxxxXxx - throttle valve - closed
xxxxXxxx - lambda control = OK
xxxXxxxx - idling = OK
xxXxxxxx - air-conditioning = OFF
xXxxxxxx - catalyst temperature > XXX °C
Xxxxxxxx - number of faults = X
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
required values
field X = Test OFF -> TEST ON
wait
required values
field X = ADP-OK
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
XX - Basic settings group XXX
activate default settings
fully depress - brake pedal + accelerator pedal
wait
required values
field X = xXXXxXxX
upon achievement of values - release - brake pedal + accelerator pedal
XX - Basic settings group XXX
activate default settings
wait
required values
field X = xXXXxXXX
upon achievement of values - continue
engine speed = idling
XX - Measured values group XXX
increase rpm to XXXX rpm
required values field X (Lambda-sensor upstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = readiness for operation
xx?xx = heating of lambda probe(s)
upon achievement of values - engine speed = idling
XX - Measured values group XXX
increase rpm to XXXX rpm
required values field X (Lambda-sensor upstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = readiness for operation
xx?xx = heating of lambda probe(s)
upon achievement of values - engine speed = idling
XX - Basic settings group XXX
activate default settings
follow the diagnostics instructions
may take several minutes
required values:
field X = Syst-OK
field X = Syst-OK
field X = Syst-OK
upon achievement of values - continue
XX - Basic settings group XXX
activate default settings
required values
field X = Test OFF -> TEST ON
wait
required values
field X = Syst. OK
upon achievement of values - continue
check download of the readiness code of the readiness functions
if values are not achieved:
check of error memory
do a test drive
- idling
- partial load
- full load (engine speed > XXXX rpm)
- deceleration
repeate this test
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.