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 MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSIGNITION SWITCH CIRCUIT
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Ignition Switch Circuit
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Ignition Switch Circuit
Ignition Switch Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, battery positive voltage is applied to terminal IG of the multiplex network body ECU.
INSPECTION PROCEDURE
DESCRIPTION
When the ignition switch is turned to the ON position, battery positive voltage is applied to terminal IG of the multiplex network body ECU.
Witing Diagram:
Step 1:
Step 1(continued)-4:
Step 4(continued)-5:
Step 6-7:
Step 7(Continued):
INSPECTION PROCEDURE
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.