Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk3 2015 - 2020 => Topic started by: Yas on January 28, 2023, 07:45:22 PM
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Hello all, new member and owner of a 2016, 1.3 SE.
My parking sensors were working but now they are not.
The parking sensor switch is flashing green but not staying green.
When I switch on the engine there is a tone, the info display on the dash shows a picture of the car in amber, with all of the sensors showing.
There is also an amber 'i', and when I click the info button on the steering wheel it provides zero information, just the aforementioned picture.
The car dealer is no use and I can find no answers in the manual, on Google or YouTube, it's so frustrating.
Can someone please help, or is anyone else experiencing the same issues?
Cheers guys
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At the risk of stating the blindingly obvious, have you inadvertently switched them off? There is a switch down by your right knee which could be accidentally nudged when entering or exiting the car.
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I have a 2019 Jazz,and i've also accidently switched the sensors off as mentioned above. ;)
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For some reason mine seem to be randomly turned off usually after rain.
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Parking sensors switch off by itself if there is water, snow or dirt on the sensor. The systen cannot be switched on either, until the obscuring stuff is away.
However, I have never seen the "i" or described picture on the infodisplay.
My advice is to first wipe the sensors clean if the system is behaving stragely.
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At the risk of stating the blindingly obvious, have you inadvertently switched them off? There is a switch down by your right knee which could be accidentally nudged when entering or exiting the car.
Thank you for your response, the switch is on, but instead of the led staying green, it's flashing green.
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Parking sensors switch off by itself if there is water, snow or dirt on the sensor. The systen cannot be switched on either, until the obscuring stuff is away.
However, I have never seen the "i" or described picture on the infodisplay.
My advice is to first wipe the sensors clean if the system is behaving stragely.
Hello,
I have given them a wipe, but nothing has changed.
Seems as though this isn't a common fault
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I've never seen the 'i' on the display as you describe, nor the flashing green on the button.
I've not tried it on the Jazz, but on other cars you can normally feel the sensors pulsing once the system is engaged. You would normally have to work around the various safety interlocks to get this to work though and indeed do a 'walk test' for each sensor - front and rear.
It reads to me as though you have either a sensor failure or a fault on the parking sensor module.
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There is a procedure for turning the rear sensors off and on, P461 of the online manual (may be slightly different page in different editions or in hard copy); you're looking for a page titled "Turning off all rear sensors". This seems to mention some of the things you describe, eg the blinking light on the switch. Might be worth trying that procedure to see if it brings the system back.
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There is a procedure for turning the rear sensors off and on, P461 of the online manual (may be slightly different page in different editions or in hard copy); you're looking for a page titled "Turning off all rear sensors". This seems to mention some of the things you describe, eg the blinking light on the switch. Might be worth trying that procedure to see if it brings the system back.
Thank you, it's worth a go.
I have tried resetting it twice, but it made no difference.
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Does the i indicate there is information stored in the information menu, which might contain more detailed information on the error.
Think on my Jazz mk4, when the i indicator is displayed, I’ve accessed the information menu and found a message relating to issue in there. Unsure if this is same on other versions.
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Does the i indicate there is information stored in the information menu, which might contain more detailed information on the error.
Think on my Jazz mk4, when the i indicator is displayed, I’ve accessed the information menu and found a message relating to issue in there. Unsure if this is same on other versions.
This is the most frustrating part of the issue.
It tells me there's something wrong with all of the sensors, but only by showing a diagram, there is no written information.
I am going to clean all of them with wd-40 in a bit, and provide an update
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Update:
I have cleaned all of them with WD-40 - it hasn't worked.
I have carried out the procedure to switch off the rear sensors, as suggested earlier, that is in the manual - again, it hasn't worked.
There doesn't seem to be a quick fix, and will probably require fault finding on the electronics unless someone can tell me different?
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I have a similar fault on the Fabia and my research shows that 99% of the time it is a faulty sensor. I was advised to buy a sensor and swap them out one at a time to see which one is faulty.
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That is the logical next step.
Did you your car indicate that all of the sensors were faulty, like mine is?
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It just tells me there is a fault. I have not had a scan done but the VAG system scan tells you exactly what sensor(s) is/are faulty.
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I have a similar fault on the Fabia and my research shows that 99% of the time it is a faulty sensor. I was advised to buy a sensor and swap them out one at a time to see which one is faulty.
Update: a car expert YouTuber has confirmed this advice. He stated that if one of them doesn't work, the system is disabled. I must say that I am pretty disappointed. I'm a new Honda owner of 2 weeks, and having this issue has quite frankly p**sed me off . I've seen videos where you can tell if a sensor is working by touching each one while the system is supposed to be working, it kind of clicks/vibrates, so I'll be trying to figure out which one has stopped working tomorrow.
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I did suggest you may be able to test each sensor in post #7.
If you've only had the car for two weeks though, I would suggest the car dealer should be sorting it out.
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I did suggest you may be able to test each sensor in post #7.
If you've only had the car for two weeks though, I would suggest the car dealer should be sorting it out.
Thank you mate. The car dealer is a couple hours drive away, and they would probably need the car at least a few days, which makes life too difficult. They did offer to take a look.
I just hope I'll be able to tell which sensor is dud.
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although I agree the car dealer should be sorting it out I can understand this is not always convenient.
Can you not identify the problem sensor somewhere quiet by physically driving/reversing into actual obstructions such as traffic cones. It should be easy enough to identify if one sensor activates for a cone and another does not . If there is no obvious difference it may indicate more than one sensor is faulty or the system as a whole has a problem, or not switched on .
If you can identify one faulty sensor then at least you know where you stand for getting it repaired under warranty. If you can positively identify a particular fault to the dealer its on record that its within the warranty period and he might agree to you getting it fixed at his expense by a specialist more local to you.
I dont know how easy the sensors are to change. If you are a keen diy mechanic with no warranty you could even consider swopping sensors between left and right to see if the fault migrates with the sensor. You will then know with more certainty a new sensor is required. But if they are reasonably cheap buy one anyway as Jocko suggests.
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A diagnostic check on the vehicle will identify which sensor is at fault. Each sensor creates a different trouble code, as well as other trouble codes relating to the interconnection of the sensors and units.
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Try blowing air into each sensor or use vacuum cleaner on each .Final check a smart smack against each one.
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It could be something as simple as an over enthusiastic pre sale preparation clogging it with polish.
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although I agree the car dealer should be sorting it out I can understand this is not always convenient.
Can you not identify the problem sensor somewhere quiet by physically driving/reversing into actual obstructions such as traffic cones. It should be easy enough to identify if one sensor activates for a cone and another does not . If there is no obvious difference it may indicate more than one sensor is faulty or the system as a whole has a problem, or not switched on .
If you can identify one faulty sensor then at least you know where you stand for getting it repaired under warranty. If you can positively identify a particular fault to the dealer its on record that its within the warranty period and he might agree to you getting it fixed at his expense by a specialist more local to you.
I dont know how easy the sensors are to change. If you are a keen diy mechanic with no warranty you could even consider swopping sensors between left and right to see if the fault migrates with the sensor. You will then know with more certainty a new sensor is required. But if they are reasonably cheap buy one anyway as Jocko suggests.
The whole system is disabled, which is something that happens even if it's just the one sensor that's not working.
I am having a bit of trouble finding a sensor that is compatible with a 2016 Jazz, they aren't really available so I might have to source one through Honda.
I tried the rubbing your finger over each one AND recording them with a camera to hear a click, and none of them are working which could mean any number of things.
I am considering buying a diagnostic tool but I need to do slot of research before getting one.
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I tried the rubbing your finger over each one AND recording them with a camera to hear a click, and none of them are working which could mean any number of things.
I can neither hear nor feel any of mine clicking. One guy on the Skoda forum bought one of those engineers' stethoscopes and said even with that he couldn't hear a working set clicking. I think for the majority of cars, being able to hear them is a fallacy. The way to check it is with a suitable diagnostic set-up (too expensive for an average owner) that pinpoints the defective sensor.
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A diagnostic check on the vehicle will identify which sensor is at fault. Each sensor creates a different trouble code, as well as other trouble codes relating to the interconnection of the sensors and units.
I have been considering getting my own diagnostic tool or getting it done professionally, but I'm tight with money and am having trouble justifying possibly spending over £50 on a parking sensor when I could manage without, and after spending so much buying the damn thing... I really was hoping it was a quick fix
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Try blowing air into each sensor or use vacuum cleaner on each .Final check a smart smack against each one.
As the WD-40 trick didn't work, I'll definitely give this a go too
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when I could manage without
I am of the same opinion. I have never had parking sensors so the fact mine don't work is neither here nor there. I use my bumpers as parking sensors!
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If the sensors are just covered with something, the system doesn't show any warnings. It just switches off. With an orange "i" on the display and a blinking green light on the switch it seems obvious, that there is something deeper.
I agree that an auto electrician with a suitable diagnostics tool is the quickiest, cheapest and best solution. But if that is not possible, then I would start by checking all sensor wiring connectors as well as the switch connector.
I doubt that any generic diagnostic tool is able to reveal anything about these sensors. You need Honda specific one, which are priced for professionals.
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If the sensors are just covered with something, the system doesn't show any warnings. It just switches off. With an orange "i" on the display and a blinking green light on the switch it seems obvious, that there is something deeper.
I agree that an auto electrician with a suitable diagnostics tool is the quickiest, cheapest and best solution. But if that is not possible, then I would start by checking all sensor wiring connectors as well as the switch connector.
I doubt that any generic diagnostic tool is able to reveal anything about these sensors. You need Honda specific one, which are priced for professionals.
I think you may be right, but I know it won't be cheap.
I think I will have to phone a few places to gauge how much diagnosis will cost.
It's such a shame and very disappointing that the system gives no indication about what it could be that's causing the problem.
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The deflation warning system doesn't tell you which tyre is an issue either.
A much more important warning so this one is minor by comparison.
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The deflation warning system doesn't tell you which tyre is an issue either.
A much more important warning so this one is minor by comparison.
I honestly thought that buying a Honda would mean trouble free driving for the foreseeable, but this one issue has really annoyed me, and now that you've told me this - I'm wondering why Honda are choosing to do things this way.
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The deflation warning system doesn't tell you which tyre is an issue either.
A much more important warning so this one is minor by comparison.
Personally I see the indirect system used by Honda as a distinct advantage over individual tyre monitor valves. I had heard so many tales of sensor batteries running out,in 2 or 3 years or less , and the whole sensor needing to be replaced by a tyre fitter .
No need to buy expensive electronic monitor valves for each wheel, or periodically get them replaced or serviced. (saved me well over £100 on a second set of wheels)
It uses normal tyre valves and just monitors the rotation speed of each wheel. If rotation speed of one or more wheels becomes outside expected parameter due to loss of air pressure the system activates. Simples . Even with a tpm system you should be regularly checking tyre pressures anyway, not just rely on the system alerting you. If I got an activation I would certainly want to use the opportunity anyway to check the pressures of all 4 tyres at the same time . No great hardship.
Sometimes the Honda system will give a 'false alarm especially if new tyres have just been fitted and not yet bedded in . But its no big deal . Just programme it to relearn what is normal.
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Update:
Giving them all a smack doesn't work unfortunately.
Have Honda Bristol a call: cost of diagnosis £105, the cost of 1 sensor without fitting £165.
Independent auto electrician quoted £70 for diagnosis and a repair if able to within that hour.
I need to get access to each one and check that they're connected before forking out bundles of cash. Has anyone done this before and is about to offer any advice?
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Update:
Took it to a local garage who plugged it in to their diagnostic tool.
At first no faults were found when the parking sensor switch is off, but when switched on, the tool showed that all 4 rear sensors were not working. (Maybe this could be significant?)
They told me that the most likely cause is wiring, and as they do not have wiring diagrams they said that I should take it to an auto electrician. (Which will cost me £70 at the very least!!)
I cannot find the location of the parking sensor fuse anywhere in the manual or online?
Does anyone have any idea of the fuse location?
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I'd guess it's more likely to be a connector issue, there must be a multi-pin connector somewhere behind the rear bumper plastic I'd have thought. Just a guess .......
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I would like to have a look at the connectors and the unit, but not entirely sure how to access it.
I have tried to buy a Haynes manual but they aren't available to buy in book form and I don't understand what you are getting when you buy the 'online' manual.
There are some videos that relate to the MK2, does anyone know if they are relevant to the MK3 aswell?
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Yas,
We have a sept 15 Mk3 SE bought in 2018, so should be about the same as yours. Ours was fine for a year or so and then had more or less the same faults as yours. Does yours sleep outside? Ours is worse in the winter (in Orkney!) and sleeps outside. Never gives trouble in Summer. A couple of days ago it did it again - as soon as I turned on the ignition all 5 images in orange came on - even though there is no centre sensor at the rear! I turned the flashing green off, sprayed each sensor with WD and drove away with it still turned off. A few miles down the road, I pushed the button and it was solid green and no amber warnings or bleeps. Result - I thought! A few days later when slowing down through 20mph for a T junction there was a beep and the centre rear logo was lit. Switched off the green light and went on my way. Switched it on again whilst driving and all is well till next time!!
I've started to leave them off (in the cold damp weather) until I start a manoeuvre where I might benefit from them and they work. Not an ideal solution but less irritating!
I have an iCarsoft unit but haven't been arsed plugging it in to check but might just see one day.
Ian
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Hi,
New here and not from UK so please be gentle.
Just bougth a Jazz MK3 from -16 and everything but the parking sensors are working (does also have backup cam).
Have tried to clean them but no success. It's bugging me that the panel just says "check system" without saying which sensor(s) is bad; that you must have a diag tool to sort this out.
Anyhow, has anyone tried this:
https://pandgmotors.com/diagnostics/honda-civic-how-to-reset-initialise-park-assist-sensors-on-honda-vehicles-step-by-step/
Will test it myself later on (the car is out right now).
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Hi,
I did try this, it didn't work for me, I hope it does for you.
In the manual it states the procedure to disable the rear sensors, which I did, so I now have the front sensors working instead of none of them.
As I said earlier, the garage I took it to have told me all 4 of my rear sensors are showing a fault which suggests a wiring issue and at least £80 to fix.
I haven't booked it in to the auto electrician yet and I'm not sure if I will given what I'll get for the cost.
I would like to access the rear sensors control unit to have a fiddle but I can't find any information about how to do this.
If anyone has the know how please let me know 🙂
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See also this:
https://clubjazz.org/forum/index.php?topic=15600.msg131174#msg131174