Haval H6 (HEV) Driver Side Seat ventilation not working

[alitayyab]

TL;DR. The CAN Hi signal for driver side vent fan is too high (14V vs 4V) and requires a investigation.

I have already posted this in the H6 thread, making a separate thread as a PSA.

The driver side seat ventilation did not work a couple of days back (probably did not work from the get go, but since i got the car mid winter i did not test).

I took it in for today for this issue. After a couple of hours trying the driver side fan on the passenger side (it did work) and vice versa (did not work), it was discovered that CAN Hi signal was too high! (14V vs 4V) on the driver side vent fan connector. so they wanted to work all the way back to the control module which would've taken more time and I did not want to kill my Saturday looking at wire harnesses.

SInce this was being tested using a voltage tester and not a oscilloscope, it is not possible to test whether a CAN signal was being sent or not. at this voltage. I was shown the "correct" CAN hi signal on the passenger side as being about 4V on the volt meter (same pin on the connector as the one that showed 14V on the passenger side; there were two pins of the driver side with +14V as compared to one on passenger side).

The potential fix is obviously tracing where the CAN Hi l is shorting to Vcc as per the tech. I asked him to also consult the company and other showroom and check if they have had this issue before (I am sure i am not the only one; or very few actually use/ test seat ventilation).

If anyone has any other ideas about why this is happening please do let me know.

@Xulfiqar If you have any light to shed on this issue, it would be most helpful.

[pwuser167550015690]

If it really is a short somewhere (likely with a 12V rail) then it might just be a bad harness or connector, no? Might not actually be affecting other units of the H6.

BTW, slightly off-topic but does this mean H6 we get here doesn't have heated seats, and only Ventilated as you didn't test in Winter?

[alitayyab]

Yup, thats the idea that the tech gave me, but he said that many dont even turn it on or turn it on and not know its not working! I dont believe its a short, since a short would take out the fuse, which it did not. it is likely something that they didnt understand at the time and "made" up the short

Yup, only ventilated. But like all ventilated seats i have used, it is pretty week unless one is wearing shorts.
I dont think the back is ventilated, but i'll have to check. The base is definitely ventilated

The aussie version has heated and ventilated seats as well as heated steering. Pakistani variant doesnt have heated steering

Curisouly, PKDM jolion has heated seats, but not ventilated, where as in australia it has both.

I bough the H6 HEV based on australian use, it is kind of popular, (not as popular as MG, but MG was around longer). The car drives exactly like the aussie version with the exception that right now vent doesnt work

[saad0irfan]

Congratulations on your purchase sir!! How much have you driven it till now?

[pwuser167550015690]

Pretty sure we get the Thai spec variant here, so that's probably why we also only get FWD instead of AWD option as well in the hybrid. Thai PHEV doesn't have AWD drive either.

No heated seats is a bummer. We only get like 2 months of Winters in Lahore but during that time, my seat heating is permanently set to on and it's incredibly relaxing specially if you're feeling tired after a long day.

H6 HEV is still at the top of my list to buy, though I'm still waiting to see if the rumored PHEV version actually launches.

[darthvader]

There’re no rumors for a PHEV variant, and tbh it doesn’t make sense to launch it either. Sazgar is planning on launching a minor upgrade to BJ40 and Tank cars.

[darthvader]

As you mentioned, I’ve found the vents on my H6 2.0L pretty useless. Even at high, unless you’re wearing something like a shalwar kameez, you barely feel them. My overall feelings towards this car a bit mixed. I came from a Sorento 3.5. And while this has some amazing tech, there are quite a few bugs and shortcomings as well.

[Xulfiqar]

Open up the wiring, the can lines are shorting to battery power.

[alitayyab]

The reason the hybrid doesn't have AWD is due to the limitation of DHT. They dont have DHT in tank hybrid and offer AWD.
That is the reason from car expert australia
There are no AWD HEV h6 hybrids anywhere. the phev awd does not have dht.

[alitayyab]

Thank you for the reply,
Yes, the only other thing that i have noticed is that the usb port for the dash cam will loose power for a bit at times (completely random) turning the camera off. Since the camera chimes, i simply turn it back on.

Other than that, the car runs pretty well. It does better on fuel average that the 2008 (peugeot). But then again that car is like 60% of H6 HeVs price. I dont think i will ever get back the money in fuel savings.

But there are cool things to play with. The autopark feature i use at the airport and sometimes at busy mall parkings.
The 360 camera is better than most cars (esp german cars). The ADAS features do come in handy esp. when reversing into a busy street (i have had h6 auto break several times reversing on to a main street).

I dont they are interested in PHEV. They already have a tank 300 ready to go on display as soon as they have go ahead from sazgaar lahore (talking about isd dealership). I am sure you've already seen the good cat (ora 3). The australian good cat had voice commands, some form of face or self recognition system as well as reach adjustment for steering. I dont think the one here as any of these, though i did not specifically test for voice commands. The next possible car could be Jolion HEV, but that might eat into H6 market, so how knows.

[pwuser167550015690]

Jolion Hybrid was directly confirmed by Sazgar as in the pipeline for 2024, but for the PHEV all they said was that they're exploring the option so there is no confirmation either way.

The Ora Cat 03 is the mid spec variant so that's why it doesn't have the same features as the top of the line spec. Sazgar did the same thing for H6 CBUs as well and didn't import the top of the line variants because of higher import costs but if they ever launch the CKD variant here, they'd likely offer the top spec variant as well.

[darthvader]

How do you guys manage to drive a car without a spare wheel? This was a major reason why I went with the AWD variant (apart from wanting AWD to begin with). It’s like a ticking time bomb. I don’t know how Toyota managed to fit a full sized spare in the Corolla Cross while Haval couldn’t in a much bigger car.

[alitayyab]

Vezel doesnt have a spare, only a repair kit. The case AFAIK is the same with freed.
tubeless tires, most of the times, dont just loose all the air and slowly deflate. and filling it up or using the repair kit does help.
I have a repair kit and an inflator in addition to the inflator in the trunk

The H6 has its 12V batt in the boot, had it been in the engine bay there would've been enough room for a tire.

Also this:
https://www.thecarexpert.co.uk/wheres-my-spare-wheel/

[pwuser167550015690]

I haven't had a car with a spare wheel in quite a while. You tend to just forget about it very quickly and if it really comes down to it, all the cars had an Inflation and Repair kit available as standard.

Even when I used to have a spare wheel, I almost never used it and just inflated the tire with extra pressure if it got a puncture and drove it to a repair shop and got it fixed. Didn't like the hassle of bothering to change the wheel.

[saadaqib00]

it's the same for me; i always use the handy inflator (it was a repair kit at first but then i converted it into an inflator, lol)
Even though i also bought a spare later, I have never touched it. Its only there for when I have to travel away from the city.

[AkbarGr8]

Can you please share your honest feedback regarding it's bug / shortcomings? Would you prefer a corolla cross instead? Thanks

[dms664]

All friends talking about having an inflator and kit but what will be the modus operandi in case of tire burst or a bigger cut in the tire where the tire will not hold air and you are in the middle of nowhere?

[alitayyab]

God is great.
That being said, either call a friend or hope for a passer by to help.

But what if the spare is also a dud; no air and no inflator? This has actually happened to me. But was close enough to a gas station; so all's well that ends well

[darthvader]

I went to Skardu last year when I had a Sorento. Suffered 2 punctures, one of which was in the middle of nowhere with a massive nail in the tyre. After that I was like no way will I ever travel without a spare.

[darthvader]

Corolla Cross will not have bugs or shortcomings because it doesn’t have anything to offer to begin with, so I would never swap a Haval for it. It’s a simple car so it will be reliable like any other Toyota. Its issue is that its priced about 10 lac over what it should have.

• For Haval, I’ve had several cases where CarPlay would just stop working. It will get stuck and fall back to Haval’s own UI and the car will no longer detect the phone. The only way out is a hard reboot of the infotainment system.

• The car creaks and rattles a little, in particular from the doors. There’s something in the boot area that’s also making a noise that I haven’t been able to diagnose. If you’ve been in a Sorento or a Santa Fe, you’ll ‘feel’ that those cars are better put together. Haval feels delicate.

• The front suspension is just wrong in so many ways. It really needs a retune imo. If you go over a cat-eye for example, you will really hear the suspension and a very strong feedback in the car. You get used to this eventually, but for a car its size, it doesn’t do a good job handling bumps. Not a particularly stable car at high speeds because the suspension is way too soft.

• Any time the camera comes on, it lowers the music. And the camera comes on a lot, which I don’t mind. Its got a fantastic camera system. Just don’t lower the music?

• The rear seats should have had adjustable recline. Even a 2014 Corolla has that.

• The head up display can show navigation information, but only through Android Auto, not from CarPlay.

• Ventilated seats are useless

I recently went to Hunza from the Bisham route on this car and it was a wonderful experience. Haval is the least ‘Chinese’ car out of all the Chinese cars in the market. However to say it’s on the same fit and finish level as the Koreans and Japanese is wrong. The only car I would ever considering swapping this out with is the Santa Fe and the upcoming Sorento.