Highlander 4WD V6-3.5L (2GR-FE) (2008)
REMOVAL
NOTE: Before removing the tire pressure warning ECU, read the registered transmitter IDs of all wheels and write them down to use for
re-registration of transmitter IDs.
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.
NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected See: Testing and
Inspection/Programming and Relearning/Repair Instruction - Initialization.
2. REMOVE FRONT DOOR SCUFF PLATE RH
HINT: Use the same procedure for the RH side and the LH side.
3. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH
HINT: Use the same procedure for the RH side and the LH side.
4. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
5. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY
6. REMOVE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)
7. REMOVE TIRE PRESSURE WARNING ECU
8. REMOVE ECM
(a) Separate the harness connector.
(b) Disconnect the 5 ECM connectors.
(c) Remove the wire harness clamp.
(d) Remove the 2 nuts, bolt and ECM.
9. REMOVE NO. 1 ECM BRACKET
(a) Remove the 2 screws and No. 1 ECM bracket.
10. REMOVE NO. 2 ECM BRACKET
(a) Remove the 2 screws and No. 2 ECM bracket.
Installation
2GR-FE ENGINE CONTROL SYSTEM: ECM: INSTALLATION
INSTALLATION