Jetta Sedan L5-2.5L (BGP) (2005)
Brake Light Switch: Testing and Inspection
Brake Light Switch F / Brake Pedal Switch F47, Checking Signal
Special tools, testers and auxiliary items required
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Hand multimeter V.A.G 1526 or Multimeter V.A.G 1715
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Connector test set V.A.G 1594
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Wiring diagram
Test conditions
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The respective fuse (SC 14) of Brake Light Switch F must be OK.
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The respective fuse (SB 7) of Brake Pedal Switch F47 must be OK
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Battery voltage must be at least 11.5 Volts.
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All electrical consumers such as, lights and rear window defroster must be switched off.
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The parking brake must be applied, otherwise daytime running lights are switched on.
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If vehicle is equipped with an A/C system, it must be switched off.
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The ground (GND) connections between engine and body must be OK.
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Ignition switched off.
Function test
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Connect Vehicle Diagnostic and Service Information System VAS 5052. See: Powertrain Management/Computers and Control Systems/Testing
and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Vehicle Diagnostic and Service Information System VAS
5052, Connecting
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Press the button "Self-Diagnosis" on tester display.