Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
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 19, "Gateway".
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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 on printer with the 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's recognized!
Stored DTCs are displayed and printed out one after another.
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Check print-out against DTC table and repair all malfunctions as necessary. See: Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/VAG Code Charts/CAN Bus
If "No DTC recognized" is displayed the program will return to the initial position after pressing -> button.
No DTC recognized!
Indicated on display:
Rapid data transfer
HELP
Select function XX
If something else is displayed:
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See: Scan Tool Testing and Procedures/End Output (Function 06)
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Switch ignition off
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Disconnect VAG 1551 from Data Link Connector (DLC).
Without Manufacturer Scan Tool
The manufacturer does not provide a procedure for reading diagnostic trouble codes without a scan tool.
With Manufacturer Scan Tool
Diagnostic Trouble Code (DTC) Memory, Erasing (function 05)
NOTE: After DTC memory is erased, its contents are automatically output. If DTC memory cannot be erased, check DTC memory again and repair
malfunction.
Prerequisites
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DTC memory checked. See: Reading and Clearing Diagnostic Trouble Codes/Diagnostic Trouble Code (DTC) Memory, Checking (Function
02)/With Manufacturer Scan Tool
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All malfunctions repaired.
After successful DTC memory check:
Indicated on display: