New Beetle L4-2.0L (AZG) (2003)
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If the specifications are not attained:
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Carry out a road test to free oxygen sensor of possible residues and repeat the test.
Observe the valid safety precautions when carrying out a road test.
If the specifications are again not attained:
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Replace oxygen sensor before catalyst (G39)
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Check DTC memory, if necessary, repair any malfunctions and then erase DTC memory. Refer to "Displaying and Reading Trouble Codes/With
Manufacturers Scan Tool/DTC Memory Checking and Erasing" See: Computers and Control Systems/Testing and Inspection
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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 Code, Displaying" See: Computers and Control Systems/Testing and Inspection
Refer to "Monitors, Trips and/or Drive Cycle/Readiness Code, Generating" See: Computers and Control Systems/Testing and Inspection
Oxygen Sensor Aging After TWC, Check
Oxygen Sensor After Catalyst Aging, Checking
Special tools and equipment
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Scan tool VAG 1551 or vehicle system tester V.A.G 1552 with cable VAG 1551/3B
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V.A.G 1788/10 Engine speed adjuster
Test conditions
Coolant temperature must be at least 85 °C See display group 04, display zone 3
Functional check
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Connect scan tool VAG 1551 (V.A.G 1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idle
speed.
Connecting scan tool and selecting Engine Control Module (ECM). Refer to "Scan Tool Testing/Scan Tool Connecting and Initial
Checks/VAG1551 Scan Tool" See: Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons 0 and 4 for function "Basic Setting" and confirm entry with Q button.
Indicated on display
Basic setting
Input display group number XXX
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Press buttons 0, 4 and 3 for "Display group number 34" and confirm entry with Q button.
