Communication With Scan Tool Is Not Possible (Communication With ABS Only Is Not Possible)

Detecting Condition






Inspection Procedures
Check for Continuity in the Diagnosis Line
1. Disconnect the connector from the ESC control module.
2. Check for continuity between terminals 13 of the ESC control module connector and 1 of the data link connector.
3. Is there continuity?






Check the Power Source of ESC Control Module
1. Disconnect the connector from the ESC control module.
2. Turn the ignition switch ON, measure the voltage between terminal 31 of the ESC control module harness side connector and body ground.

Specification :approximately B+


3. Is voltage within specification?










Check for Poor Ground
1. Check for continuity between terminal 5 of the data link connector and ground point.