A4 Quattro Cabriolet V6-3.0L (BGN) (2005)
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LED should illuminate.
If the LED does not illuminate:
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Check wiring for open circuit and service if necessary.
If the LED illuminates:
Check actuation
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Connect test box VAG1598/31 to wiring harness for engine control module; do not connect engine control module. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan
Tool/Wiring and Component Check With Test Box VAG 1598/31
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Check for open circuit and short to positive or Ground in following wiring connection:
Connector
Test box VAG1598/31
terminal
Socket
2
39
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Repair any open/short circuit as necessary.