Jetta Sedan L5-2.5L (BGP) (2005)
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Replace Brake Light Switch F / Brake Pedal Switch F47.
Checking wiring
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Connect test box to Motronic Engine Control Module (ECM) J220 wiring harness. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Test Box, Connecting For Wiring Test
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Contact
Test box socket
3
55
4
56
Wiring resistance: max. 1.5 Ohms
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Check wires for short circuit to each other, to B+ and Ground (GND).
Specification: Infinite Ohms
If no malfunction is detected in wiring:
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Replace Motronic Engine Control Module (ECM) J220.