SAE J1939 Data Readers
GAC’s JDR Series of SEA J1939 data readers are low-cost universal devices that allow users to read Diagnostic Trouble Codes (DTC’s). More advanced models allow users to monitor standard SEA J1939 engine parameters, and/or monitor and control Tier-IV diesel particulate regeneration function. The JDR devices are designed for Electronic Engines (ECMs) and devices equipped with SEA J1939-compatible Electronic Control Units (ECU).

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