Jetta V6-2.8L (BDF) (2002)
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The main fuses must be OK.
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The battery voltage must be at least 11.5 V.
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All electrical accessories, e.g. lights and rear window heating must be switched off.
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If the vehicle is equipped with air conditioning, it must be turned off.
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Selector lever must be in position "P" or "N" on vehicles with an automatic transmission.
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Fuel Pump (FP) -J17- must be OK, checking:
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Motronic Engine Control Module (ECM) Power Supply Relay -J271- must be OK., checking:
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Alternator OK., checking:
Test sequence
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Connect VAG 1551 Scan tool (or VAG 1552) and select engine electronics control module with the "Address word" 01. When doing this the
engine must be running at idle speed: ((VAG 1551 and Motronic Engine Control Module (ECM) -J220-, connecting and selecting).
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool
Connecting/With Manufacturer's Scan Tool/Connecting VAG 1551 Scan Tool
Indicated on display:
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- for function "Read measured value (data) block" and confirm entry with -Q- button.
Indicated on display:
Read measured value block
Input display group number XXX
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Press buttons -0-, -0- and -4- for "Display group number 4" and confirm entry with -Q- button.
Indicated on display: (1 to 4 = display zones)
Read measured value block 4
->
1
2
3
4
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Read figure displayed in display zone 2.
Specification: at least 11.500 V
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Press the -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with the -Q- button.
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Switch off ignition.
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Evaluating display group 4, display zone 2.
If the specification is not obtained:
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Remove wiper arms and cowl panel: