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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Computer/Integrating Systems >> Diagnostic Information and Procedures >> DTC U2099 >> Typical Scan Tool Data
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Typical Scan Tool Data

HS Comm. Cmd.

Circuit Normal Range Short to Ground Open Short to Voltage
Operating Conditions:  Ignition Switch in ACC, ON or START
High Speed Communication Enable On Off On On
Operating Conditions:  Ignition Switch in OFF
High Speed Communication Enable Off Off Off On
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