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.
2012 Toyota Venza FWD V6-3.5L (2GR-FE)FACTORY OEM SERVICE PROCEDURE
Removal
POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL
1. REMOVE UPPER INSTRUMENT PANEL
HINT
Refer to the procedure up to Remove Upper Instrument Panel Sub-assembly Removal.
2. REMOVE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 4 connectors.
(b) Disengage the 2 claws and disconnect the connector [A] as shown in the illustration.
(c) Disconnect the 3 connectors.
(d) Disconnect the 3 connectors as shown in the illustration.
(e) Disconnect the connector [A] as shown in the illustration.
(f) Disconnect the connector.
(g) Disconnect the 2 connectors.
(h) Remove the 3 nuts.
(i) Disengage the 2 claws.
(j) Disconnect the connector [A] as shown in the illustration.
(k) Disconnect the 4 connectors and remove the main body ECU (driver side junction block assembly).
(l) Remove the 5 relays.
Factory Service Tools
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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.
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