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Troubleshooting
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Communication With GDS Is Not Possible (Communication With ABS Only Is Not Possible)
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Detecting Condition
Detecting Condition
Trouble Symptoms
Possible Cause
If communication with GDS is not possible, the cause is probably an open in the HECU power circuit or an open in the diagnostic output circuit.
An open in the wire
Faulty HECU
Faulty power source circuit