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 MANUALSLEXUS2012RX 450H AWD V6-3.5L (2GR-FXE) HYBRIDREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULESERVICE AND REPAIRREMOVAL
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) Hybrid
Removal
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) HybridSECTION Removal
POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL
1. REMOVE INSTRUMENT PANEL SAFETY PAD ASSEMBLY
HINT
Refer to the procedure up to Remove Instrument Panel Safety Pad Assembly Removal.
2. DISCONNECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
(a) Disconnect the 3 connectors.
(b) Disengage the 2 claws and disconnect the 2 connectors (1) as shown in the illustration.
(c) Disconnect the connector (2).
(d) Remove the bolt and nut, and disconnect the driver side junction block assembly.
(e) Disengage the claw and disconnect the connector as shown in the illustration.
(f) Disengage the 2 claws and release the connector lock as shown in the illustration.
(g) Disengage the claw and disconnect the connector as shown in the illustration.
(h) Remove the driver side junction block assembly.
3. REMOVE MULTIPLEX NETWORK BODY ECU
(a) Press the claw of the junction block as shown in the illustration to release the lock.
Text in Illustration
(b) With the junction block lock released, insert a screwdriver with its tip taped horizontally between the multiplex network body ECU and junction block.
NOTICE:
Use a screwdriver with a radius of between 5.0 and 6.3 mm and a length of approximately 90 mm.
(c) Using the screwdriver, carefully raise the multiplex network body ECU up to the position where the connector becomes disengaged.
NOTICE:
Do not twist the screwdriver to raise the multiplex network body ECU.
(d) Raise the multiplex network body ECU as shown by arrow (1), and then pull it out as shown by arrow (2) in the illustration.
NOTICE:
Do not touch the ECU connector.
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.