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Communication With Scan-Tool Is Not Possible (Communication With Any System Is Not Possible)








Detecting Condition






Inspection Procedures
Check the Power Supply Circuit for the Diagnosis
1. Measure the voltage between terminal 9 of the data link connector and body ground.

Specification :approximately B+


2. Is voltage within specification?










Check the Ground Circuit for the Diagnosis
1. Check for continuity between terminal 5 of the data link connector and body ground.
2. Is there continuity?