Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2008AVALON V6-3.5L (2GR-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRINSTALLATION
2008 Toyota Avalon V6-3.5L (2GR-FE)
Installation
2008 Toyota Avalon V6-3.5L (2GR-FE)SECTION Installation
2GR-FE ENGINE CONTROL SYSTEM: ECM: INSTALLATION
INSTALLATION
1. INSTALL ECM
(a) Install the 2 ECM brackets with the 4 screws.
Torque: 3.0 Nm (31 kgf-cm, 27 in-lbf)
(b) Connect the 2 ECM connectors.
NOTICE: When connecting the connectors, make sure that dirt, water or other foreign matter is not stuck between the connectors and other parts.
(1) Connect the 2 ECM connectors and lower the 2 levers.
NOTICE: Make sure that the 2 levers are securely lowered.
(c) Install the ECM to the body.
(d) Install the ECM with the 3 nuts.
Torque: 8.0 Nm (82 kgf-cm, 71 in-lbf)
2. INSTALL COWL TOP PANEL OUTER
3. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
4. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
5. INSTALL WINDSHIELD WIPER ARM AND BLADE ASSEMBLY RH
6. INSTALL WINDSHIELD WIPER ARM AND BLADE ASSEMBLY LH
7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTICE: If the cable is disconnected, some systems need to be initialized after the cable is reconnected
Repair Instruction - Initialization.
8. REGISTER IMMOBILISER COMMUNICATION ID
NOTICE: If the ECM is replaced, register the ECM communication ID for the immobiliser system (refer to the Service Bulletin for registration).
9. PERFORM INITIALIZATION
NOTICE: After replacing the ECM on vehicles with a dynamic laser cruise control system, it is necessary to initialize the ECM so that the ECM can recognize the dynamic laser cruise control system.
(a) Be sure to perform the following procedure after replacing the ECM.
(1) Turn the ignition switch on (IG).
(2) Turn the cruise control 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.
NOTICE: 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.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.