AT2–78 A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING 2 Check harness and connector between battery and No.4 solenoid valve, No.4 solenoid valve and ECM (See page IN–30). OK NG Repair or replace harness or connector. Proceed to next circuit inspection shown on matrix chart (See page AT2–64). However, when diagnos- tic trouble code 46 is displayed, check and replace ECM.