Removal and Installation
Hybrid Vehicle Control ECU:
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE RH
3. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH
4. REMOVE INSTRUMENT PANEL UNDER COVER SUBASSEMBLY NO.2
5. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY
6. REMOVE HYBRID VEHICLE CONTROL ECU
a. Disconnect the 3 wire harness clamps.
b. Disconnect the 6 connectors from the hybrid vehicle control ECU.
c. Remove the 2 nuts and hybrid vehicle control ECU.
7. REMOVE ECM BRACKET NO.1
a. Remove the 2 screws and ECM bracket No.1.
8. REMOVE ECM BRACKET NO.2
a. Remove the 2 screws and ECM bracket No.2.
9. REMOVE WIRE HARNESS CLAMP BRACKET
a. Remove the 2 screws and wire harness clamp bracket.
INSTALLATION
1. INSTALL WIRE HARNESS CLAMP BRACKET
a. Install the wire harness clamp bracket with the 2 screws.
2. INSTALL ECM BRACKET NO.2
a. Install the ECM bracket No.2 with the 2 screws.
3. INSTALL ECM BRACKET NO.1
a. Install the ECM bracket No.1 with the 2 screws.
4. INSTALL HYBRID VEHICLE CONTROL ECU
a. Install the hybrid vehicle control ECU with the 2 nuts.
Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)
b. Connect the 6 connectors to the hybrid vehicle control ECU.
c. Connect the 3 wire harness clamps.
5. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY
6. INSTALL INSTRUMENT PANEL UNDER COVER SUBASSEMBLY NO.2
7. INSTALL COWL SIDE TRIM SUB-ASSEMBLY LH
8. INSTALL FRONT DOOR SCUFF PLATE LH
9. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
10. INITIALIZE HYBRID VEHICLE CONTROL ECU
NOTE: After replacing the hybrid vehicle control ECU on vehicles with a dynamic laser cruise control system, it is necessary to initialize the hybrid vehicle control ECU so that the ECU can recognize the dynamic laser cruise control system.
a. Be sure to perform the following procedures after replacing the ECU.
1. Turn the ignition switch to the on position.
2. Turn the cruise main switch on.
3. With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3 seconds. Check that the buzzer sounds at this time.
NOTE: Do not turn the headlight dimmer switch on at this time because the optical axis automatic adjustment mode has already started, which may lead to an incorrect optical axis setting. If the headlight dimmer switch is turned on by mistake, readjust the optical axis.
11. PERFORM INITIALIZATION
Some systems need initialization when disconnecting the cable from the negative battery terminal.