Jetta GLS L4-2.0L (AVH) (2001)
Alarm Module: Reading and Clearing Diagnostic Trouble Codes
With Manufacturer Scan Tool
Diagnostic Trouble Code (DTC) Memory, Checking (function 02)
NOTE: DTCs stored in memory along with corresponding malfunction descriptions can only be displayed by initiating the On Board Diagnostic
program and checking DTC memory (function 02).
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Connect VAG 1551 Scan Tool, select operating mode 1 "Rapid data transfer", switch on ignition and enter address word 17, "Instrument cluster".
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Press -Q- button to confirm input.
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Press -> button until "Select function" appears in display.
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Switch printer on with -Print- button (indicator lamp in button lights up).
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -2- to select "Check DTC memory" function 02.
Indicated on display
Rapid data transfer
Q
02 - Check DTC memory
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Press -Q- button to confirm input.
The number of stored DTCs appears in the display.
X DTC recognized!
The number of stored DTCs or "No DTC s recognized" appears in the display and are printed out one after another.
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When the last DTC has been displayed and printed out, rectify malfunctions as described in DTC table. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/VAG Code Charts/Immobilizer System
If "No DTC recognized" is displayed the program will return to starting point after pressing -> button.
No DTC recognized
->
Indicated on display
Rapid data transfer
HELP
Select function XX
If display reads otherwise:
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Press buttons -0- and -6- to select "End Output" function 06. See: Scan Tool Testing and Procedures/Scan Tool Testing/End Output (Function 06)
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Switch ignition off and disconnect Data Link Connector (DLC).
Without Manufacturer Scan Tool
The manufacturer does not provide a procedure for reading diagnostic trouble codes without a scan tool.
Clearing Trouble Codes
Diagnostic Trouble Code (DTC) Memory, Erasing (function 05)
NOTE: After erasing DTC memory its contents will automatically be indicated. If DTC memory cannot be erased, check DTC memory again and repair
malfunctions.
Requirements
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DTC memory has been checked. See: Displaying and Reading Trouble Codes/With Manufacturer Scan Tool
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All malfunctions repaired.