Engine Control System (Service Information): ECM: Removal: Removal

REMOVE COWL TOP VENTILATOR LOUVER RH . Refer to REMOVAL - Step 1
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
WARNING: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
REMOVE AIR CLEANER INLET COVER SUB-ASSEMBLY See step 4
REMOVE ENGINE ROOM SIDE COVER LH . Refer to REMOVAL - Step 8
REMOVE ENGINE ROOM ECU COVER

Fig 1: Identifying Engine Room ECU Cover Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:
- Wipe off any water on or around the engine room ECU cover.
- Perform these procedures in a dry place away from rain, etc.
- Do not allow water to enter the ECM through its connectors areas, screw areas, etc.
1. Remove the 3 bolts and engine room ECU cover.
REMOVE TCM
1. Disconnect the 4 TCM connectors.
  
  Fig 2: Identifying TCM Connectors And Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 2 nuts and TCM.
DISCONNECT NO. 2 CONNECTOR HOLDER
1. Disconnect the 2 engine wire connectors.
  
  Fig 3: Identifying No. 2 Connector Holder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2 claws with the connector holder.
REMOVE ECM
1. Disconnect the 6 ECM connectors.
  
  Fig 4: Identifying ECM Connectors And Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 2 nuts and ECM.