Electronic Controlled Automatic Transmission System: Initialization

RESET MEMORY
NOTE:
- Perform the RESET MEMORY (A/T initialization) when replacing the automatic transmission assembly, engine assembly or ECM.
- The RESET MEMORY can be performed only with the Intelligent tester.
HINT:

The ECM memorizes the vehicle conditions when the ECT controls the automatic transmission assembly and engine assembly. Therefore, when the automatic transmission assembly, engine assembly, or ECM has been replaced, it is necessary to reset the memory so that the ECM can memorize the new information. Reset procedure is as follows.
1. Turn the engine switch off.
2. Connect the intelligent tester to the DLC3.
  
  Fig 1: Disconnecting Connector Of Transmission Wire
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3. Turn the engine switch on (IG) and push the intelligent tester main switch on.
4. Select the item "DIAGNOSIS / OBD/MOBD / ECT".
5. Perform the reset memory procedure from the ENGINE menu.
  CAUTION: After performing the RESET MEMORY, be sure to perform the ROAD TEST (see ROAD TEST ) described earlier.
  
  HINT:
  
  The ECM learns through the ROAD TEST.
  1. Tester menu flow:
Fig 2: Reset Memory Flow Diagram
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002