How to repair communication error on DGS?
Model: Hyundai Sonata(FL)
Year Model: 2009
Fuel: Gasoline
Displacement: 2400cc
Subject: GDS(Global Diagnostic System) Communication error.
1) Condition
- GDS can not communicate with ECM.
2) Cause
- Open circuit in DLC (Data Link Connector) K-Line wire.
3) Diagnosis
- Check the fuse related to ECM – Normal.
- Check the DLC connector pin – Normal.
- Check the K-Line, communication terminal using oscilloscope in GDS.
= No output signal detected (Spec. 5V in IG “ON” condition). - 5V output signal from K- Line terminal that is connected to multi-purpose check connector.
- Check for a circuit between DLC K-Line and MCC K-Line with multi meter = open circuit.
4) Guide to Repair
- Repair DLC wire.
- Communication OK.
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