Aircon fault code B24A9 - sunlight sensor

ICE, Equipment, Options
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trembler2003
Posts: 2
Joined: Mon Jul 15, 2019 9:14 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by trembler2003 »

Hi,

First post but a bit desparate :-)

Going on hols next Weds and our air con has become intermittent - 64 plate Tekna.

Went into local garage today who have come back with a B24A9 fault code - fault location "AC sunlight sensor - circuit malfunction". They list the probable causes as wiring, sunlight sensor or AC control module. They say they can't fix it and it's got to go to main dealer - it's booked in there on Friday but I'm concerned we're running out of time to get it fixed / get parts in.

I've heard/read about a lot of problems on the AC on QQs - anyone seen this particular fault code?

Thanks

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gloucester
Posts: 5189
Joined: Sun Apr 03, 2016 7:04 am
Location: Gloucestershire, England
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by gloucester »

Welcome to this forum.

I've never heard anyone mention that one before.

The usual cause of AC failure on a Qashqai is condensor leakage
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07 ~ (2024 Volvo EX30 ordered)
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gloucester
Posts: 5189
Joined: Sun Apr 03, 2016 7:04 am
Location: Gloucestershire, England
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by gloucester »

Here's a manual page for that fault code:

https://zinref.ru/avtomobili/Nissan/004 ... H/1114.htm
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07 ~ (2024 Volvo EX30 ordered)
trembler2003
Posts: 2
Joined: Mon Jul 15, 2019 9:14 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by trembler2003 »

Thanks - found that page yep - so I'll just have to see what dealer says. They're now hoping to do diagnostics on Thursday.
desachristopher
Posts: 1
Joined: Fri Jun 30, 2023 6:46 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by desachristopher »

ANY UPDATE ON THIS POST, CAUSE i AM FACING THE SAME PROBLEM
andy2019
Posts: 1866
Joined: Sat Oct 26, 2019 8:47 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by andy2019 »

desachristopher wrote: Fri Jun 30, 2023 6:48 pm ANY UPDATE ON THIS POST, CAUSE i AM FACING THE SAME PROBLEM
4yr old post now so doubt it :shock:
lewisbryant
Posts: 336
Joined: Sat Feb 23, 2019 7:27 am
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by lewisbryant »

This fault code is set when the sunlight sensor puts out a signal for a lack in sunlight.
Usually in a workshop there is not sunlight so when we read the dtc's it the workshop it will be there if you drive it out in to the daylight and then re read the code will go past

Basically this fault is in all of them but it isn't actually a fault in my own experience

If this fault is still set in sunlight then I'd take a closer look at the sensor but if it clears in sunlight then it's normal for it to be set in the workshop environment

If you have Aircon issues it's most likely a leak on qashqais or some other factor
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