Data Link Connector VAG 1551 Wiring, Checking: Notes

NOTE:

DLCs and the wiring connections -K- and -L- for all vehicle systems with On Board Diagnostic (On Board Diagnostic) are located in auxiliary relay panel I (in plenum chamber, left), Refer to he appropriate Wiring Diagram

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For wiring colors and details of other vehicle systems connected to the white DLC, Refer to he appropriate Wiring Diagram

For testing, use digital multimeter Fluke 83 (1119) or equivalent, VW 1594 connector test kit, and VAG 1598 test box with VAG 1598/03 adapter harness.

-- Switch off ignition before testing wiring connections.

Black DLC, Power Supply

• Terminal 1: Ground
• Terminal 2: B+ (terminal 30) via fuse 19 (-S19-)

White DLC, Data Transfer

• Terminal 1: not required for brake electronics

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• Terminal 2: data line for "Rapid data transfer"

DLC wiring is routed via wiring connection -K- to the ABS Control Module (w/EDL) -J104- (terminal 31).

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-- Use digital multimeter Fluke 83 (US 1119) or equivalent to check for open circuits, short circuits to positive (+) or short circuits to Ground.