New Beetle GLS L4-2.0L (AVH) (2001)
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Change to display group 32 as follows:
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Press C button.
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Press buttons 0, 3 and 2 for "Display group number 32" and confirm entry with Q button.
Indicated on display: (1 to 2 = Display zones)
Read measured value block 32
->
1
2
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Check oxygen sensor control learned value at idling (additive) in display zone 1.
Specification: -10.0 to 10.0 %
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Check oxygen sensor control learned value at part load (multiplicative) in display zone 2.
Specification: -10.0 to 10.0 %
If the specification is not obtained:
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Evaluating display group 32 Refer to "Scan Tool Testing/Measuring Value Blocks/Evaluating Measured Value Blocks/Display Groups 30 to 49,
107 (Oxygen Sensor Control)" See: Powertrain Management/Computers and Control Systems/Testing and Inspection
If the specification is obtained:
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Change to display group 33 as follows:
VAG 1551: Press button 3
V.A.G 1552: Press button Uparrow
Indicated on display (1-2 = Display zones)
Read Measuring Value Block 33
->
1
2
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Observe oxygen sensor control in display zone 1. Display must fluctuate at least 2 % in range
-10.0 to 10.0%
If the oxygen sensor control in display zone 1 does not fluctuate as stated:
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Press -> button.
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Press buttons 0 and 6 for "End data transfer" function and confirm input with Q button.
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Switch ignition off.
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Carry out a test drive to remove possible residue on oxygen sensor and repeat check.
Observe the valid safety precaution carrying out a road test.
If the specifications in display zone 1 are not obtained even after a test drive, or the value does not fluctuate by at least 2 %:
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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: Powertrain Management/Computers and Control Systems/Testing and
Inspection
Checking oxygen sensor wiring for oxygen sensor 1
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Remove inner plenum chamber cover, left: