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Engine Control System: ECM: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  2. REMOVE ECM BOX COVER 
    1. Remove the 3 bolts and ECM box cover.
    NOTE:
    • Make sure there is no water and / or foreign matter around the ECM box cover.
    • Perform the inspection indoors to avoid rain.
    • Prevent water from contacting the ECM's connectors and screw areas.
    Fig 1: Locating Bolts And ECM Box Cover
    G05291621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE ECM 
    1. Disconnect the 5 ECM connectors.
    2. Remove the 2 nuts and ECM from the ECM box.
    Fig 2: Locating Nuts And ECM
    G05291622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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