mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

Communication With Scan Tool Is Not Possible (All Systems)|Page 2146 > < Communication With Scan Tool Is Not Possible (All Systems)|Page 2144
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Data Link Connector: Testing and Inspection
Scan Tool Communication With PCM/ECM Is Not Possible

Data Link Connector Circuit

CIRCUIT OPERATION

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A diagnostic output is made from the ECM (terminal 85) <M/T> or PCM (terminal 85) <A/T> to the diagnostic output terminal (terminal 7) of the
data link connector.

-

When diagnostic test mode control terminal (terminal 1) of the data link connector is grounded, the ECM (terminal 84) <M/T> or PCM (terminal
84) <A/T> changes to the diagnostic test mode.

COMMENT

One of the following causes may be suspected:

-

No power supply to ECM or PCM.

Communication With Scan Tool Is Not Possible (All Systems)|Page 2146 > < Communication With Scan Tool Is Not Possible (All Systems)|Page 2144