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Communication With Any System Is Not Possible

Communication With Hi-Scan (pro) is Not Possible.
(Communication With Any System is Not Possible)

DETECTING CONDITION

DETECTING CONDITION:





INSPECTION PROCEDURES

CHECK THE POWER SUPPLY CIRCUIT FOR THE DIAGNOSIS
Measure the voltage between terminal 9 of the data link connector and body ground.

Specification: approximately B+
Is voltage within specification?
YES
^ Check the ground circuit for the diagnosis.

NO
^ Repair an open in the wire. Check and replace fuse (15A) from the engine compartment junction block.

Voltage Check:





CHECK THE GROUND CIRCUIT FOR THE DIAGNOSIS
Check for continuity between terminal 5 of the data link connector and body ground.

Is there continuity?
NO
^ Repair an open in the wire between terminal 5 of the data link connector and ground point.

Resistance Check:




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