Issue with the boot lock of a 2011 Auris

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n1mrod
Moderator
Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

The rear door catch unpredictably releases to the initial safety position, without fully opening the boot. This often occurs when the system is activated, resulting in a bothersome alert and audible warning. Initially, the issue was identified as a defective boot switch, however, replacing it did not resolve the problem. I have been informed that the issue may be due to a wiring defect. However, the expense of diagnosing the problem is excessively high and uncertain. Therefore, I am curious whether anybody has encountered a similar situation and knows the underlying cause.
sherlockHOME
Moderator
Posts: 105
Joined: Fri Mar 22, 2019 5:30 pm

Did you have any problems with the latch before it was determined that the switch was faulty? If you made a modification and they subsequently altered it, then the issue lies with the switch. Replacing the switch has not remedied the issue, indicating that there may be a wiring malfunction.

Prior to replacing the switch, it would have been prudent for them to inspect the wiring for any potential defects in order to verify the source of the issue. Was this establishment a Toyota dealership or a local mechanic?
Jul4ster
Senior
Posts: 94
Joined: Thu Jul 04, 2019 7:15 pm

It seems that there is an occasional short circuit between the wire transmitting the unlock switch signal and the ground, which is generating the unpredictable behaviour.

There may be a fracture in the rubber tube that connects to the hatch. Attempt to exert force on it in order to see whether it aids in removing the obstructed pathway to the earth.

Another potential issue may lie with the latch position detector switch. Under what circumstances would it be considered a latch swapout?

In any case, it should be quite straightforward for any automotive electrician to diagnose. I would steer clear of the prior garage.
n1mrod
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Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

Greetings and thank you for your interest. I am now researching rates for the detector switch and will proceed with testing the incoming wire as per your suggestion. The prior garage was the primary authorised retailer.
n1mrod
Moderator
Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

Thank you for providing this valuable information. Indeed, the issue had endured for a considerable period of time prior to the (false) identification of the switch. The principal dealer was responsible.
sherlockHOME
Moderator
Posts: 105
Joined: Fri Mar 22, 2019 5:30 pm

In my opinion I have identified the problem with your dealer. Has this work been completed recently?

Undoubtedly, you have made payment for the replacement switch, as well as the associated work costs, as shown on the invoice, along with any pertinent information on their first diagnostic.

Did the dealer notify you at the time of picking up the automobile whether or not they had remedied the problem?

I fail to see the reason for your search for pricing, considering that you have already paid the major dealer to do this task. Their diagnostic indicated a defective switch, and despite the substantial amount of money you have spent, you have been left to settle this matter independently. I would want a refund because you have already paid for the item to be repaired. Isn't it their responsibility to fix it?
n1mrod
Moderator
Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

Greetings. Thank you for providing this valuable information. Indeed, the issue had endured for a considerable period of time prior to the (wrong) diagnosis of the changeover. The principal dealer was responsible. Apologies for misplacing the response.
n1mrod
Moderator
Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

Due to the exorbitant price offered for the switch, I decided to purchase a new one and had it installed by a different garage. I was informed that it had not functioned properly, so I returned it to the authorised dealer who proposed diagnostic services at a steep cost, which I refused. I am searching for the latch position detector switch, specifically excluding the boot switch, since I am certain that it is functioning properly. The automobile is currently not covered by a warranty.
Jul4ster
Senior
Posts: 94
Joined: Thu Jul 04, 2019 7:15 pm

I am uncertain about the serviceability of the latch switch. If purchasing a new latch assembly is too costly, then obtaining a pre-owned one would likely be the most advantageous and straightforward alternative.
n1mrod
Moderator
Posts: 121
Joined: Thu Mar 12, 2020 5:10 pm

I have discovered a boot latch that is being sold at a favourable price, and I will get it installed next week. I will provide an update for those who are interested, while hoping for a positive outcome.
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