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Jeep
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2021
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Grand Cherokee L Altitude, AWD
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Repair and Diagnosis
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General Information
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OEM General Information
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(Security Gateway Module (SGW) Electrical Diagnostics)
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DTC Troubleshooting
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U102B-00-High Speed FD-Can1 Communication Bus Performance-
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When Monitored
When Monitored
This diagnostic runs continuously when the following conditions are met:
With the ignition in the Run position.
Battery voltage is between 10.0 and 16.0 volts.