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A/T Communication Line DESCRIPTION The ECM and TCM provide mutual communication in relation to engine output control signal (ignition timing TCM TERMINALS AND REFERENCE VALUE Remarks: Specification data are reference values. Terminal No. Wire color Item Condition Judgement standard (Approx.) 47* R/L LAN — — *: This terminal is connected to the ECM. ON BOARD DIAGNOSIS LOGIC Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause) : A/T COMM LINE The ECM-A/T communication line is Harness or connector : 12th judgement flicker GI MA EM LC EC FE PD FA RA BR ST RS BT HA EL IDX TROUBLE DIAGNOSIS FOR A/T COMM LINE AT-157 |