Beetle L4-1781cc 1.8L Turbo (APH) (1999)
Display Group 56
Significance of 5 digit number block
If the specification is obtained:
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Press -> key.
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Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
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Switch off ignition.
Continuation
If the idle speed is not obtained:
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Adapt ECM to throttle valve control module.
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Carry out test drive.
Observe the valid safety precautions when carrying out a road test.
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Again check the control module DTC memory.
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Repeat the idle check.
If the specifications are not obtained again:
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Check throttle valve control module. See: Computers and Control Systems/Electronic Throttle Control Module/Testing and Inspection
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Check intake air system for unmetered air. See: Fuel Delivery and Air Induction/Testing and Inspection
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Check the operating condition of engine. Refer to "Scan Tool Testing/Measuring Value Blocks/Engine Operating Modes, Checking", See:
Computers and Control Systems/Testing and Inspection
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Check the signals from/to air conditioner. See: Computers and Control Systems/A/C Signal/Testing and Inspection