Pedestrian Hood Pop Up Replacement

Gery Diagnostician Florida Posted   Latest  
Resolved
Safety
2018 Lexus LS500 3.5L (V35A-FTS) 10-spd (AGA0E)

Hello fellow techs. The body shop replaced the four hood pyro pop-up for pedestrian protection but the shop is telling me the rear of the hood is still up.

I'm not gonna lie, I've never done one and am not sure if theres a special procedure to lower it or if any module requires replacement after deployment.. I've looked up and down alldata and cannot find any info.

I am trying to be proactive and be ready for tomorrow. Any advice would be greatly appreciated. Thanks

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Robby Technician
Alabama
Robby
 

Hi Gery, I've only worked on one of these systems after a hood deployment. Afterward, there was a Pedestrian Hood Pop Up warning light with no DTCs in any module. I finally found this note in the service information: The pedestrian detection ECU assembly should be replaced after any of the SRS parts has deployed, as it has been subjected to an impact. I replaced the pedestrian detection ECU…

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Helpful
Victor Technician
California
Victor
 

Silly questions to understand more of the work performed …. Did they replace the hinges as well? was the hood replaced/repaired?

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Alexander Diagnostician
New Jersey
Alexander
 

Fellow tech if the hood is physically up. There are two options The body and hood alignment is off or the new devices deployed again. Either because of a damaged or shorted sensor or module. I hope is the alignment. Good day. Warrior

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Gery Diagnostician
Florida
Gery Update
 

Thanks guys. You were all right. The hinges were not replaced and I am getting an error for pedestrian on the dash with no codes. I told the customer to replace the hinges and pedestrian module. Will update when completed. Thanks again

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Victor Technician
California
Victor
 

Sad to see the obvious in this as the shop should have caught this damage. This now concerns me since the next part that will more than likely need replacing will be the front sensor tube assembly located within the bumper. Just how airbags deploy with impact sensors, there is a specialty sensor located on the back side of the front bumper energy absorber. It is essentially a rubber tube with…

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Gery Diagnostician
Florida
Gery
 

Thanks victor. Gonna advise that as well

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Victor Technician
California
Victor
 

You're welcome Gery! Update us on the shops findings and if indeed they replaced that sensor which triggers the actuators to deploy.

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Gery Diagnostician
Florida
Gery Resolution
 

Thanks to all Who replied. They did change the module, hinges, and sensor. All is good.

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