Diagnostic procedures for a VAG diagnostics
Database for coding vehicle control units Volkswagen - VAG
Software versions
VIN - Code validator
Engines / Diesel / 2.0/103kW TDI-CR CFFx;CFGx;CFHx;CLCx;CMGB UDS EDC17 C46 / Test - Change-over valve: Reducing agent SCR AD-Blue (N473)
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Model
Control unit
Diagnostic operation
Diagnostic procedure
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Conditions:
- engine speed = X rpm
- parking brake = ON
- automatic transmission = N or P
- Error memory empty
Note:
The control unit shall increase and reduce the pressure of the reducing agent. Visually check the system for leaks
connect with the control unit XX - engine
XX - Security access
enter value: XXXXX
Start
XX - Adaptation
select item in menu: IDEXXXXX - adaptation - Quantity measuring unit
TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window
new value -> enter value: XX
Start
XX - Basic settings
select item in menu: IDEXXXXX - Test - Quantity measuring unit SCR
Start
Note:
The control unit shall increase and reduce the pressure of the reducing agent. Visually check the system for leaks
In the Basic Settings window, click Measured values and select the items you want to visualize.
select item in menu:
IDEXXXXX-ENGXXXXXX - Reducing agent - regulator valve
IDEXXXXX - Reducing agent -pressure sensor - actual value
IDEXXXXX - Reducing agent - additive pump - excitation
TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window
desired condition
IDEXXXXX - Reducing agent - additive pump - excitation
required value = X - XX %
IDEXXXXX-ENGXXXXXX - Reducing agent - regulator valve
IDEXXXXX - Reducing agent -pressure sensor - actual value
required values:
X = Pumping - ON -> X.X bar
X = Pumping - back -> X.X - X.X bar
if values are not achieved, check part:
- Reducing agent - wiring (tightness? clogged?)
- additive pump
- check of error memory
back
XX - Basic settings - Stop
end
- engine speed = X rpm
- parking brake = ON
- automatic transmission = N or P
- Error memory empty
Note:
The control unit shall increase and reduce the pressure of the reducing agent. Visually check the system for leaks
connect with the control unit XX - engine
XX - Security access
enter value: XXXXX
Start
XX - Adaptation
select item in menu: IDEXXXXX - adaptation - Quantity measuring unit
TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window
new value -> enter value: XX
Start
XX - Basic settings
select item in menu: IDEXXXXX - Test - Quantity measuring unit SCR
Start
Note:
The control unit shall increase and reduce the pressure of the reducing agent. Visually check the system for leaks
In the Basic Settings window, click Measured values and select the items you want to visualize.
select item in menu:
IDEXXXXX-ENGXXXXXX - Reducing agent - regulator valve
IDEXXXXX - Reducing agent -pressure sensor - actual value
IDEXXXXX - Reducing agent - additive pump - excitation
TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window
IDEXXXXX - Reducing agent - additive pump - excitation
required value = X - XX %
IDEXXXXX-ENGXXXXXX - Reducing agent - regulator valve
IDEXXXXX - Reducing agent -pressure sensor - actual value
required values:
X = Pumping - ON -> X.X bar
X = Pumping - back -> X.X - X.X bar
if values are not achieved, check part:
- Reducing agent - wiring (tightness? clogged?)
- additive pump
- check of error memory
back
XX - Basic settings - Stop
end
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.