Engine Control System (1GR-FE) - System Testing, On-Vehicle Inspection, Removal, Inspection & Installation: ECM: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTE:
- Some systems need to be initialized after the cable is reconnected (see INITIALIZATION ).
- After the ignition switch is turned OFF, the navigation system requires approximately 90 seconds to record various types of memory and settings. As a result, after turning the ignition switch OFF, wait 90 seconds or more before disconnecting the cable from the negative (-) battery terminal.
DISCONNECT CONNECTOR HOLDER BLOCK
1. Remove the 3 bolts and move the connector holder block so that the ECM can be removed in the next step.
  
  Fig 1: Locating Connector Holder Block Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE ECM
1. Raise the 2 levers while pushing the locks on the 2 levers.
  
  Fig 2: Removing ECM
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Make sure that the lock lever is raised 90° as shown in the illustration before disconnecting the ECM connectors. Failure to do this may cause the ECM connectors to break.
2. Disconnect the 2 connectors.
  
  Fig 3: Locating Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 4 bolts and ECM.
  
  Fig 4: Locating ECM Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE ECM GASKET
1. Peel off the sponge part of the gasket.
  
  Fig 5: Peeling Off Sponge Part Of Gasket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Spray gasket remover or equivalent on the remaining tape of the gasket.
  NOTE: When using gasket remover or equivalent, cover the ECM connector with a cloth.
  
  Fig 6: Spraying Gasket Remover
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Use a cutter knife to remove the tape of the gasket.
  NOTE: Do not damage the ECM seal's surface with the knife.
  
  Fig 7: Removing Tape Of Gasket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002