buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

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G CAR HARNESS/PARTS LAYOUT

WIRE DIAGNOSTIC PROCEDURES

1.

Check connectors for good physical connection

2.

Check Battery wire (red) for constant 12 volts

3.

Check Ignition wire (green) for switched 12 volts which is on when ignition key is turned on

4.

Check ground wire for good continuity to a solid ground source

5.

Check for trickle charge output (12 volts)

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