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OBDII Connector. Which wire is ground?

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Old May 12, 2006 | 07:23 PM
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Default OBDII Connector. Which wire is ground?

2005 GTO, though for OBDII the connectors hould all be the same. Which pin on the connector is ground?
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Old May 12, 2006 | 09:27 PM
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Pins 4 and 5 on the DLC go to ground.
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