Jetta GLS L4-1.8L Turbo (AWP) (2002)
System in basic setting 56
->
1
2
3
4
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Check the operating mode in display zone 4
Specification: 0X000 (Significance) Refer to "Scan Tool Testing/VAG1551/Evaluating Display Group 50 to 69, 99, 107 (Speed Regulation)",
See: Computers and Control Systems/Testing and Inspection
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Check the specified idling speed in display zone 2.
Specification:
Manual transmission 760 RPM
Automatic transmission 700 RPM
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Check idling speed in display zone 1.
Specification:
Manual transmission 700 to 820 RPM
Automatic transmission 640 to 760 RPM
NOTE: During idling check the EVAP canister purge regulator valve and the air conditioner are switched off and the oxygen sensor control learning
procedure is initiated.
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Press -> key.
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Press keys 0 and 6 for the "End data transfer" function and confirm input with the Q key.
If the idling speed is not obtained:
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Adapt the engine control module to the throttle valve control module, Refer to "Engine Control Module, Adapting to Throttle Valve Control
Module" See: Computers and Control Systems/Engine Control Module/Service and Repair
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Carry out test drive.
Observe the valid safety precautions when carrying out a road test See: Computers and Control Systems/Service Precautions/Technician Safety
Information
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Again check the control module DTC memory.
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Repeat the idling 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 the operating condition of engine. Refer to "Scan Tool Testing/VAG1551/Engine Operating Mode Check", See: Computers and Control
Systems/Testing and Inspection
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Check the intake air system for unmetered air. Refer to "Non-Trouble Code Procedures/Checking for Leaks in the Intake Air System" See:
Computers and Control Systems/Testing and Inspection