LEMON Manuals
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GMC
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2003
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Jimmy 4D Utility, 4WD, Part Time
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Repair and Diagnosis (Single Page)
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Accessories & Equipment
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Communication Devices
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Data Link Communications System
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Diagnostic Information and Procedures
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DTC U1300, U1301, or U1305: No Valid Messages Are Detected On The Class 2 Serial Data Circuit.
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Conditions for Running the DTCs
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Conditions for Running the DTCs
Voltage supplied to the module is in the normal operating voltage range.
The vehicle power mode requires serial data communication to occur.