Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Introduction

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How To Troubleshoot Ecu Controlled Systems

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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Light Assembly: Inspection
INSPECTION PROCEDURE 1. INSPECT REAR LIGHT ASSEMBLY LH (a) Apply battery voltage to the rear light assembly LH and check that the lights come on. OK: Condition Specified Condition Battery positive (+) → Terminal 2 (B) Battery negative (-) → Terminal 1 (E) Taillight comes on Ba ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Airbag System: Short in D Squib Circuit (B1800-B1803)
DESCRIPTION The driver squib circuit consists of the airbag sensor assembly, spiral cable sub-assembly and horn button assembly. The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a malfunction is detected in the driver sq ...