Highlander 4WD V6-33L (3MZ-FE) (2004) - ECM Removal and Installation
Engine Control Module: Service and Repair
Removal and Installation
REPLACEMENT
1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE RH
3. REMOVE COWL SIDE TRIM SUB-ASSY RH
4. REMOVE GLOVE COMPARTMENT DOOR ASSY
5. REMOVE INSTRUMENT PANEL FINISH PANEL LOWER NO.2
6. REMOVE ECM
a. Remove the 2 wire harness clamps.
b. Disconnect the 5 ECM connectors.
c. Remove the 2 nuts and ECM.
7. REMOVE ECM BRACKET NO.1
a. Remove the 2 screws and ECM bracket.
8. REMOVE ECM BRACKET NO.2
a. Remove the 2 screws and ECM bracket.
9. INSTALL ECM BRACKET NO.2
a. Install the ECM bracket with the 2 screws.