Toyota Avensis - Check parking brake

[StuVensis]

Hi, Just wondering if anyone knows the solution to this issue, My vehicle (1.6D Toyota Avensis Business Edition D-4D 112 Start/Stop) keeps flagging up “check parking brake” issue on the dash (see image attached),

One of my family members is a longstanding vehicle mechanic that works for one of the biggest breakdown companies in the UK and has plugged in his OBD scanner and the car has returned with MAF sensor and ECM faults but nothing directly showing a fault with the parking brake system, (see images of codes attached).

Does anyone happen to know any information that may point towards a fix or rectifier for this?

I can temporary remove the warning from the dash by turning the ignition on and off 3x, removing the key, and then reinserting the key and then starting the vehicle, but day after day it keeps coming back.

Regards,

Stu

 

[Bper]

Hi Stu, this one’s a bit tricky. even though the parking brake and MAF sensor don’t seem related, everything in modern cars is pretty interconnected. Sometimes, a problem in one area can cause warnings in another. I’d suggest sorting out the MAF sensor and ECM issues first since they’re showing up as faults. Hopefully, fixing those will take care of the parking brake warning too, but if not,it will eliminate those from the issue and we can just focus on the parking brake problem.😀

[Cyker]

Any idea how old the 12v Battery is?

It's notorious for causing weird seemingly unrelated electrical and sensor glitches when it becomes marginal.

[StuVensis]

38 minutes ago, Bper said:

Hi Stu, this one’s a bit tricky. even though the parking brake and MAF sensor don’t seem related, everything in modern cars is pretty interconnected. Sometimes, a problem in one area can cause warnings in another. I’d suggest sorting out the MAF sensor and ECM issues first since they’re showing up as faults. Hopefully, fixing those will take care of the parking brake warning too, but if not,it will eliminate those from the issue and we can just focus on the parking brake problem.😀

Thanks for the response, Sounds like a plan, this issue has been melting my head for the last couple of weeks!

[StuVensis]

36 minutes ago, Cyker said:

Any idea how old the 12v battery is?

It's notorious for causing weird seemingly unrelated electrical and sensor glitches when it becomes marginal.

I’m not too sure on that, I’ve only had the vehicle a fortnight at most, I’ll try seeing if it’s within the mass amounts of invoices and paperwotk that the car came with!

[Cessna]

On these cars the check parking brake warning acts more like master warning light indicating that there is a problem of some kind with the car, often not with the parking brake. The thing to do is read the stored error codes and fix those systems. You have read the codes, so now fix those systems (MAF and ECM) and the check parking brake warning should go away. Cyker's advice on the Battery is good too.

[Cyker]

On 8/16/2024 at 5:17 PM, StuVensis said:

I’m not too sure on that, I’ve only had the vehicle a fortnight at most, I’ll try seeing if it’s within the mass amounts of invoices and paperwotk that the car came with!

If it's got a nice layer of guck on it, and especially if there's a date on it and it's more than 5-10 years old, I'd recommend replacing it as a matter of course and see if that helps.

[Shaun Corbett]

I got same issues..

P00BD P042E on my Avensis really frustrating,reset,reset, reset, they just come back all the time.....

[Konrad C]

As Cessna stated, the 'Check Parking Brake' warning message comes up with a lot of other faults, even the though there is nothing wrong with the parking brake it self! Last year I had a misfire due to fake sparkplugs. Everything still worked including the parking brake and cruise control. Some other makes will have either warn or disable a system whenever there is a fault, even when not related!