Lexus Vibration, Tapping or Misfire After Cold Soak

2022-10-26 11:37:22 By : Mr. Wayne Wang

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Underhood Service targets repair shops that derive 50 percent or more of their revenue from the service and repair of under-the-hood systems. The expanding amount of knowledge and capital needed to keep up with technological advances has led these shop owners to concentrate on underhood systems, while also offering preventive maintenance services on most major vehicle systems. By subscribing, you’ll receive the ShopOwner digital edition magazine (12 times/year) featuring articles from Underhood Service and the Underhood Service eNewsletter (twice weekly). Access to digital editions, contests, news, and more are ready for you today!

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Here are the steps to follow if experiencing vibration, tapping or misfire after a cold soak in your customers Lexus.

2013-’16 CT200HAdvertisementSymptom:  Some CT200H vehicles may exhibit a vibration due to a rough idle or tapping noise from the hybrid transaxle after a cold soak. The check engine light may be on with codes P0300, P0301, P0302 or P0304 stored in the ECM.  Correction:  Lexus has released new software for the ECM to resolve the condition. If the vehicle has already been serviced for this condition, there will be a sticker affixed under the hood. After the vehicle is reflashed, allow the vehicle to cold soak to confirm that the problem is no longer present.

Some CT200H vehicles may exhibit a vibration due to a rough idle or tapping noise from the hybrid transaxle after a cold soak. The check engine light may be on with codes P0300, P0301, P0302 or P0304 stored in the ECM. 

Lexus has released new software for the ECM to resolve the condition. If the vehicle has already been serviced for this condition, there will be a sticker affixed under the hood. After the vehicle is reflashed, allow the vehicle to cold soak to confirm that the problem is no longer present.

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