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.

2021 Lexus RC 350 Base, AWDFACTORY OEM SERVICE PROCEDURE

Components [11/2017 - ]

Fig 1: ECM Replacement Components With Torque Specifications

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout	Description	Callout	Description
*1	ECM	*2	ENGINE ROOM ECU COVER
*3	NO. 1 ECM BRACKET	*4	NO. 2 ECM BRACKET
	N.m (kgf/cm, ft.lbf): Specified torque	-	-

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.