Passat Sedan L4-1.8L Turbo (AWM) (2003)
The following operating conditions must be obtained during road test:
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Coolant temperature must rise to above 80 °C.
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Once the temperature is reached, the following conditions
Idle
Partial throttle
Wide Open Throttle (WOT)
Deceleration mode must be reached several times each.
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Engine speed must be increased to above 3500 RPM during Wide Open Throttle (WOT).
ECM, Adapting to Throttle Valve Control Module
Engine Control Module (ECM), Adapting to the Throttle Valve Control Module
The adaptation teaches the Engine Control Module (ECM) various positions of the throttle valve when the ignition is on and the engine is stopped. These
positions are stored in the control module Throttle valve position feedback takes place through the two throttle valve drive angle sensors.
The adaptation must be performed if:
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the throttle valve control module has been removed and reinstalled or was cleaned
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the throttle valve control module has been replaced
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another engine has been installed, and another throttle valve control module along with it
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the Engine Control Module (ECM) was replaced
Special tools and equipment
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V.A.G 1551 scan tool (or VAG 1552 mobile scan tool) with VAG 1551/3B cable
Test requirements
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Ignition switched on, engine not running
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All electrical consumers like, for example, lights and rear window heating must be switched off.
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Battery voltage must be at least 11.5 volts.
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If a cruise control system is present, it must be properly adjusted.
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The throttle valve must be in idle position (accelerator pedal must not be operated during test).
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Throttle valve control module must not be dirty (carbon deposits).
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There must not be any DTCs stored in DTC memory, checking DTC memory
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Coolant temperature must be 6 to 105 °C, See display group 04, display field 3
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Intake air temperature must be at least 6 °C, See display group 04, display field 4
Procedure
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Connect V.A.G 1551 scan tool (VAG 1552). Then switch ignition on and select the Engine Control Module (ECM) using address word 01.
(connecting scan tool and selecting ECM).
Indicated on display:
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -4- to select "Basic Setting" function 04. Press -Q- button to confirm input.
Indicated on display:
Basic setting
HELP
Enter display group number XXX
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Press buttons -0-, -6- and -0- to select "Display group number 60". Press -Q- button to confirm input.
Indicated on display: (1 to 4 = display fields)
Basic setting 60
->
xxx%
xxx%
x
ADP in progress
After pressing Q-button, throttle valve actuator will be switched on without current.
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Adaptation step 1: The Engine Control Module (ECM) checks whether all test requirements have been met.
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Adaptation step 2: The throttle valve control module will be switched to no voltage (emergency running position). The angle sensor values for