2015 Toyota Avensis check parking brake system, warning light, engine light ,parking break and auto parking break light all lappear at the same time .

Why did the Toyota dealership scan it 4 times and charge you 4 times unless it was different times and faults . If you had got the Toyota garage to fit the parts they said was the cause instead of an independent , you could have had a possible comeback on cost and parts

I know i should have let toyota fit the parts and i regret i did not. Having said that I appear what they said was the fault is not the actual the fault is somewhere else.
4 diagnosis at 4 different times for the same fault. First time toyota resetted the fault , next day went back the did the same. But did not solve the problem. So returned there again he did the same thing but this time he suggested I went to different toyota dealer . He said that i needed a toyota master engineer which he was not. So I did . the master engineer fault was the inlet manifold and turbos pressure sensor that needed changing. This is where we are now.

In between toyota appoinents I had had 3 diagnosis independent garages all kept resetting the faults. So when toyota suggested the parts as mentioned above i was not conviced that inlet manifold and the pressure were the faults and money being tight now i gambled bought the parts from toyota . I hope I answered your question. And thank you for your reply.

You seem to have different , unrelated faults . The inlet manifold and turbos pressure sensor should not cause the parking brake system , parking brake and auto parking warning lights to come on . Clearing the lights wont work and will just return till whatever faults triggering the lights are fixed

You are 100% and I agree with you. Thanks for your reply.

Simple low cost/free checks you could make are: check brake fluid level is correct, check/clean MAF sensor, check hoses and rubbers are not loose. Those can trigger the 'Check Parking Break System' warning lights in the Avensis 2015 onwards. EGR clogging could also cause it but a garage could check that too...

You think none of all the garages and dealership would not have checked the brake fluid level !!!! If the MAF was faulty it would have shown a fault code in any of the many scans carried out , Could you tell me how your suggestions of " , check/clean MAF sensor, check hoses and rubbers are not loose can trigger the 'Check Parking Break System' warning lights and EGR clogging " can affect an electronic hand brake and the other braking problems . Never known that on any car and would be very keen on finding out the theory on this

The truth is Toyota technician have clue what is causing this because their original diagnosis of manifold and Egr valve carbon build up did not solve the problem. All they made me do is spend money on parts that have nothing to do with parking break system. The simple checks suggested above i.e break fluid and Air mass flow were checked and MAF changed but this did not solve the problem. The only thing I have not done is PDF cleaning.

I had same problem same car.
Pls let me know if you find the problem.
I regret why I bought toyota. Its not reliable at all

Hi. Has anyone got to the bottom of this issue? I’ve just this last week had the same issue come up. No handbrake (can be put on with the button) check brake system etc. my local garage has plugged it in and said it was a ‘communication issue to the onboard computer’ I did ask if that meant a new ECU and they said possibly. They turned the lights out and said to see how it goes but as said above it can be on for a whie, disappear and then back again! Mine is the Avensis D4D 1.6 registered November 2015

Never been any updates so far on solutions

Definitely EGR valve needing cleaned or most garages prefer to replace! Our last Avensis done the same 3 times in its 250k life!

^ Would be very keen on knowing how the EGR valve can cause the braking problems and h/brake to be inop !!!!!!!!!!!

Hi, I have same problem with toyota avensis. Garage checked battery and it is near gone. says this is the cause. I will replace and let you know if it works.

The check parking brake and check speed limiter warning messages on this car seem to come up for totally unrelated issues.

I have 2017 Avensis 1.6 diesel and same issue , the garage computer listed over 6 faults , so he’s now at the stage where he’s going to get the auto electrician in to do a full diagnostics test on all individual sensors to try and narrow it down ??‍♂️??‍♂️

Did the new battery solve the issue ? My garage also said it could be the cause in my Avensis

Did anyone get to the bottom of this problem? Its been happening to me a avensis d4d 2litre..had a full service a senor replaced, egr valve replaced. 2000 euro spent. And again lights came on today...all work done in a toyota garage...?‍♀️?‍♀️

Never been back with any updates or solutions since posting

Same problem with my car

Never been back with any updates or solutions since posting

Have the same problem with my 2016 avensis replaced the battery and it hasn’t fixed the issue anybody have any other ideas?

Scan it for fault codes

Have 2016 model, same thing. Auto parking brake doesn't engage or release, stop/start system doesn't work and cruise control doesn't work ? WTF.....

LOAD test your battery , charge or replace as needed

Same issue here, before that happen I had message DPF full coming out, clear itself after longer drive on 3gear 2.5revs, soon after fault with that hand brake comes on, engine light lights up as well, I'm testing sensors with oscilloscope, already tested MAF, Oxygen sensors both good, I've checked harness from rear brake unit to the ECU everything fine, checked rear ABS sensors on resistance looks good...got a feeling it can be DPF or ECU, will update as soon I'll know more.

Above post .

Scan it for fault codes with appropriate equipment that will cover ALL systems and modules Details of your vehicle would also help , year , mileage etc .

Hey, thanks for the answer, no errors on OBD, ive got some tip, you guys can check on your site, when I remove cover under steering wheel and shaking cables error is going off after 2-3 engine restarts !!! Maybe there is a problem with steering wheel slip ring?? Or some doggy connections, require further check, I didn't noticed any damaged cables! But as soon I put cover back errors coming back very quick. Thx

No idea what the steering wheel slip ring is or recommend members to do what you suggest . Wont add to this especially as details of your vehicle year , mileage etc . and any work / repairs carried out are unknown Time this post was closed as over 8 months since OP and fed up going back reading the old replies

I asked the question back in Oct 2, 2022! The problem still there. I tried everything and I gave up. I am used to it. The car drives fine no issues at all except those annoying amber lights . I personally think this is a manufacturer problem that Toyota is not prepare to accept to avoid recall. Only time will tell.

Hey guys i found the problem, issue is within brake caliper, small piston and your brake pads!!!! Brake pads got 2small locking pins this pins should engage into the piston, on mine piston damaged one of the locking pins and brake pad couldn't cooperate with brake piston, I've change brake pad for good one and error gone,the piston got ware and tear so it will have to be replaced as well soon....hope that will help. Good luck!

Hi,
Thanks for the update, i have the same issue (Check Parking Brake System) in my Avensis 2016, 1.6 D4d.
how is going your solution, it has been a month now, is this fine now.? or the issue come up again.

Same problem with my Avenis. Did anyone get it sorted?

6 months since last reply