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Fault diagnosis, ISAT communication faulty

Read the instructions below then start the fault diagnostic procedure.

Fault diagnosis, ISAT communication faulty


Fault symptom

No ISAT scan tool communication.

Condition




The electronic control module lacks +15-voltage supply (connector pin 15).

The electronic control module lacks a grounding connection (connector pin 19).

No continuity in the data link connector (H16- 1) circuit.