Communication With Any System Is Not Possible

Communication with Hi-scan (pro) is not possible.
(Communication with any system is not possible)

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.





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.