Parking sensor constant beep

Non-Technical Nissan QashQai chat. Mk2, Mk3
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sj58uk
Posts: 10
Joined: Mon Apr 09, 2018 12:45 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by sj58uk »

Hi

2017 J11 N-Connecta

When I select reserse the parking sensors are a constant beep ( sustained tone) even with nothing behind me. It sounds ok so I am guessing it's not the buzzer which seems a common fault. Also, I do not have 'system error' on the drivers screen, and the rear camera seems fine.

Please could anyone give me an idea what/where the fault might be ?

cheers
Steve

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MikeGC
Posts: 1852
Joined: Tue Feb 07, 2017 11:50 am
Location: Stockport
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by MikeGC »

Steve - in my experience this can be triggered simply by the sensors being dirty.
From a thread a few months ago we learnt that it can also be triggered by a tow bar.
March '22 - J12 1.3DIG-T 160 CVT Tekna+ with all wheel drive - Pearl Black
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Qashowner
Posts: 564
Joined: Wed Apr 17, 2019 10:07 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by Qashowner »

I usually get this on the front sensors on mine, always caused by dirt. A quick clean and they work ok.
Past cars Mercedes B Class, S Class, E Class Estate, E Class Coupe, G Wagen, 260E interspersed with Peugeot 406 and Audi Coupe.
sj58uk
Posts: 10
Joined: Mon Apr 09, 2018 12:45 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by sj58uk »

Hi.. Thanks, gave them a good clean., no change unfortunately. I did notice the rear camera is red when nothing is behind me, so the system seems to be wrongly thinking it's getting a a return from an obstacle.

cheers
Steve
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calnorth
Posts: 2719
Joined: Mon Feb 11, 2019 2:01 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by calnorth »

sj58uk wrote: Sun Sep 12, 2021 3:42 pm Hi.. Thanks, gave them a good clean., no change unfortunately. I did notice the rear camera is red when nothing is behind me, so the system seems to be wrongly thinking it's getting a a return from an obstacle.

cheers
Steve
....

Nissan diagnostics for this (Sonar) system includes a number of error codes (DTCs) for each sensor. So Nissan would scan for those and change as required along with wiring harness checks. The system uses a Sonar Control Module which can also raise a DTC.

No easy DIY job other than hit and miss swapping sonar sensors.
Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta
sj58uk
Posts: 10
Joined: Mon Apr 09, 2018 12:45 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by sj58uk »

Just to update, these issues just went away, they have returned once or twice and seem to sort them self out, it's a though the system re-sets itself...

Steve
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