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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 SYSTEMSMAIN RELAY (COMPUTER/FUEL SYSTEM)SERVICE AND REPAIRINSTALLATION
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) Hybrid

Installation

2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) HybridSECTION Installation





Integration Relay

1. INSTALL ENGINE ROOM JUNCTION BLOCK ASSEMBLY

(a) Connect the 3 connectors.





(b) Engage the 2 claws to install the engine room junction block assembly as shown in the illustration.





2. INSTALL NO. 1 RELAY BLOCK COVER

(a) Engage the 4 claws to install the lower No. 1 relay block cover.





(b) Engage the 3 claws to install the upper No. 1 relay block cover.





3. CONNECT RELAY BLOCK

(a) Engage the claw and connect the relay block as shown in the illustration.





4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

5. INSTALL REAR DECK FLOOR BOX Installation
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.