A/T Communication Line

Description
The ECM and TCM provide mutual communication in relation to engine output control signal (ignition timing retard signal) during rapid standing starts/acceleration. With this consistent real-time control, the shifting feel is substantially improved.

TCM TERMINALS AND REFERENCE VALUE





Remarks: Specification data are reference values.





ON BOARD DIAGNOSIS LOGIC


DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE





After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Wait at least 6 seconds or start engine and wait for at least 6 seconds.

No Tools








1. Turn ignition switch "ON".
2. Wait at least 6 seconds or start engine and wait for at least 6 seconds.
3. Perform self-diagnosis.





Wiring Diagram-AT-LAN

Diagnostic Procedure





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