Jetta L4-1.8L Turbo (AWP) (2004)
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Coolant temperature must be at least 80 °C, See display group 04, display zone 3.
Functional check
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Connect V.A.G 1551 Scan Tool ((V.A.G 1552). Start engine and select "Address word" 01 of engine control module. The engine must be running
at idling speed. (Connecting Scan Tool and selecting engine control module). Refer to "VAG1551 Scan Tool See: Powertrain
Management/Computers and Control Systems/Tools and Equipment
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press keys 0 and 4 for function "Introduction of basic setting" and confirm entry with Q key.
Indicated on display
Basic setting
Input display group number XXX
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Press keys 0, 4 and 3 for "Display group number 43" and confirm entry with Q key.
Indicated on display:(1...4 = Display zones)
System in basic setting 43
->
1
2
3
4
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Depress brake pedal and hold.
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Press accelerator pedal to wide open throttle position.
The engine speed is increased by control module to 1800...2200 rpm.
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Maintain engine speed at 1800...2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test ON". Catalyst temperature in display
zone 2 must be at least 300 °C.
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Continue to maintain speed at 1800.. .2200 rpm until specification "B1-S2 OK" appears in display zone 4.
If the specifications are obtained:
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Release accelerator pedal and brake pedal.
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Press -> key.
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Press keys 0 and 6 for function "End output" and confirm entry with the Q key.
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Switch ignition off.
If the specifications are not attained:
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Road test vehicle to free oxygen sensor of possible residues and repeat test.
Observe the valid safety precautions when carrying out a road test See: Powertrain Management/Computers and Control Systems/Service
Precautions/Technician Safety Information
If the specifications are again not attained:
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Replace oxygen sensor (O2S) behind three way catalytic converter (TWC) -G130-..
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Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory,Checking and Erasing DTC Memory. Refer to
"Displaying and Reading Trouble Codes/With Manufacturer's Scan Tool/Check DTC Memory (Function 02)" See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic
Trouble Codes/With Manufacturer's Scan Tool/DTC Memory Checking and Erasing/Check DTC Memory (Function 02)
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Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must
be generated again: Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/With Manufacturer's Scan Tool/Displaying and Creating
Readiness Codes/Readiness Code, Reading" See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors,
Trips, Drive Cycles and Readiness Codes
Engine code AWP, Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/With Manufacturer's Scan Tool/Displaying and Creating
Readiness Codes/ Readiness Code, Generating" See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors,
Trips, Drive Cycles and Readiness Codes
With Generic Scan Tool
Oxygen Sensor And Oxygen Sensor Control Behind Three Way Catalytic Converter (TWC), Checking