Beetle L4-2.0L (AEG) (2000)
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Fuse 43 must be OK.
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Battery Voltage must be 11.5 Volts minimum
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Fuel pump relay must be OK
Test sequence
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Connect VAG 1551/1552 Scan Tool. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks" See: Testing and Inspection
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Start engine and let idle.
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Press 0 and 1 buttons to select "Engine Electronics" address word 01.
Indicated on display (example only)
06A906018AB Motronic M5.9.2 HS V06
->
Coding 00000
WSC 00000
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Press -> button.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press 0 and 8 buttons to select "Read Measuring Value Block" function 08.
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Press Q button to enter input.
Indicated on display
Read measuring value block
Input Display group number XXX
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Press 0, 4 and 1 buttons to select "Display group 41"
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Press Q button to enter input.
Indicated on display (1 to 4 = Display fields)
Read measuring value block 41
->
1
2
3
4
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Observe resistance in Display field 1 for Oxygen sensor heater before Three Way Catalyst.