Golf GL L4-2.0L (AZG) (2001)
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All fuses must be OK.
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Battery voltage must be 11.5 V minimum.
Checking
Observe safety precautions.
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Connect V.A.G 1551 Scan Tool ((V.A.G 1552) and select "01" for engine control module. Ignition must be switched on:
display will appear as shown
Rapid Data Transfer
HELP
Select Function XX
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Push keys 0 and 8 for functions "Measured value block" and press "Q" key.
display will appear as shown:
Read measured value block
HELP
Input display group number XXX
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Press keys 0, 6 and 2 for display group "62" and press "Q". display will appear as shown: (1 - 4 = display field)
Read measured value block 62
->
1
2
3
4
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Check reading of sensor 1 -G79- at idling stop in display field 3
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Specification: 12 to 97 %
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Check reading of sensor 2 -G185- at idling stop in display field 4
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Specification: 4 to 50 %
NOTE: The engine control module calculates voltage values of the angle sensor in percent, based on 5 Volts, and shows this percentage (5 Volts supply
voltage is equivalent to 100%).
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Push accelerator down slowly until reaching Wide Open Throttle position and watch percentage in display fields 3 and 4 during this process:
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Percentage in display 3 must increase constantly. The tolerance range of 12 to 97% is not covered completely.
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Percentage in display 4 must increase constantly. The tolerance range of 4 to 50% is not covered completely.
NOTE: The value shown in dispay field 3 must always be approximately double the value shown in display field 4.
If values are different from those described:
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Check power supply voltage and wiring connections to throttle position sensor. Refer to "Power Supply and Cables Check", See: Electronic
Throttle Control Module/Testing and Inspection/Power Supply and Cables Check