323 L4-1600 1597cc (1986)
Control Module: Technical Service Bulletins
A/T - Proper Control Unit Connection
Category
Applicable Model/s
ST
All Models
w/ EC-AT
Subject PROPER EC-AT CONNECTION
Bulletin No.
002/90
Issued
8/1/90
Revised
DESCRIPTION
When using the EC-AT Tester, it is critical that the 6-pin connector (with ground) that is located on the bottom left-hand corner of the EC-AT Tester
body is never connected at the same time an adapter harness is being used.
Symptom codes should be retrieved from the Control Unit* first using the 6-pin connector; after disconnecting the 6-pin connector, the adapter harness
can be used for further diagnosis.
*
"Control Unit" refers to EC-AT Control Unit, except for 1990 626/MX-6 non-Turbo. For these models, the EC-AT Control Unit is incorporated
into the Engine Control Unit.
REPAIR PROCEDURE
Please affix the attached label on the left side of the EC-AT Tester body, to the left of the adapter harness connector. On versions with the adapter, affix
the label on the top panel of the adapter.