This diagnostic trouble code, JDL 299620.31, is triggered when a short circuit or an interruption is detected at the GPS antenna or GPS cable. This indicates a physical issue with the GPS hardware components.

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This diagnostic trouble code, JDL 299619.31, is triggered when the Personal Identification Number (PIN) for the cellular service is not recognized, leading to the PIN being blocked. This indicates an issue with the SIM card security settings.

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This diagnostic trouble code, JDL 299618.31, is triggered when the internal SIM card is missing or defective. This fault indicates issues with the identification module required for cellular communication.

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This diagnostic trouble code, JDL 299616.31, is triggered when a call is disconnected unexpectedly. The code is automatically deleted as soon as a connection is reestablished. This indicates a temporary interruption in the call or data session.

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This diagnostic trouble code, JDL 299615.31, is triggered when the cellular bit error rate (BER) is too high, resulting in lost connections. This indicates poor signal quality or significant interference affecting the cellular communication.

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This diagnostic trouble code, JDL 299614.31, is triggered when the connection is lost during data transfer. The code is automatically deleted as soon as a connection is reestablished. This indicates a temporary interruption in data upload activities.

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This diagnostic trouble code, JDL 299613.31, is triggered when the connection is lost during data transfer. The code is automatically deleted as soon as a connection is reestablished. This indicates a temporary interruption in data download activities.

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This diagnostic trouble code, JDL 298887.31, is triggered when there is a conflict between the machine configuration of the JDL control unit and the configuration data received from the vehicle CAN BUS. This indicates that the control unit’s configuration settings do not match the expected values.

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This diagnostic trouble code, JDL 298886.31, is triggered when the power level of the JDL control unit is overloaded. This typically indicates that the battery is flat or there is an issue with the power supply.

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This diagnostic trouble code, JDL 298885.31, is triggered when the internal memory of the JDL control unit is full. This indicates a problem in the connection to the JDLink server, preventing data from being uploaded and cleared from the control unit.

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