Passat L4-1.8L Turbo (AWM) (2004)
System in basic setting 56
->
1
2
3
4
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Check operational readiness in display field 4. Specification: 0x000 (Significance). Refer to "Scan Tool Testing/Measuring Value Blocks/Display
Groups 50 to 69 -RPM Regulation-". Refer to "Scan Tool Testing/Measuring Value Blocks/Display Groups 0 to 9 - Basic Functions-". Refer to
"Scan Tool Testing/Measuring Value Blocks (Function 08)/Evaluating Measured Value Blocks/Evaluating Display Groups 50 to 69", See:
Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Manufacturer's Scan Tool/Read Measuring Value
Blocks (Function 08)/Evaluating Measuring Value Blocks/Display Groups 50-69 (Speed / RPM Regulation)
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Check specified idle speed (RPM) in display field 2. Specification: 800 RPM
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Check idle speed (RPM) in display field 1. Specification: 740 to 920 RPM
NOTE: During the idle test, the A/C system is turned off and adaptation is performed for oxygen sensor control.
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Press -> button.
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Press buttons -0- and -6- to select "End data transfer" function 06. Press -Q- button to confirm input.
If idle speed (RPM) is not obtained:
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Adapt Engine Control Module (ECM) to throttle valve control module.
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Perform a road test.
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Check control module's DTC memory again.
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Repeat idle test.
If specified values are still not obtained:
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Check the throttle valve control module. See: Computers and Control Systems/Electronic Throttle Control Module/Testing and Inspection
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Test operating conditions of engine. See: Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/Engine Operating Conditions, Checking
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Check intake system for false air. See: Testing and Inspection