Abs and esp on at the same time? Is it the maf?

[cupra r. ash]

Hi guys as sed. Over the last couple of days my abs and esp light has come on at the same time but then sometimes go off. Is it the maf on its way out? Cheers

 

[Ronin225]

Get it on vagcom, but does sound like MAF

 

[hyphon12]

ABS + ESP = MAF? lol I would of thought it would be a ABS sensor? Or is this just a unique way SEAT display a MAF fault?

 

[Ronin225]

Disconnect MAF and turn car on = ABS/ESP light on

 

[seatcupramad23]

abs and esp= one of the abs sensors are nkackered oor fraction wires , esp only=MAF from my experience

 

[Ronin225]

abs and esp= one of the abs sensors are nkackered oor fraction wires , esp only=MAF from my experience

They illuminate the same light, it doesnt state if its ABS or ESP

 

[seatcupramad23]

well all i'm saying , when my maf was goosed then tcs light kept coming on by it self , and when my abs sensored died both abs and tcs light came on . just sharing my experience

 

[hyphon12]

I can understand why with the TSC/ESP light could come on with a MAF fault as that's an engine related function but the ABS isn't though.

Also the ABS and ESP do have seperate lamps.

 

[Andrewcupra TDI]

mines on all time tcs and abs , vag com says wheel speed sensor gone

 

[seatcupramad23]

mines on all time tcs and abs , vag com says wheel speed sensor gone

same experience check the wires going to sensor is damaged first

 

[Muttley]

@Ronin225: See below: ABS light is 18, TCS/ESP is 26: They are two separate lights.

ABS+ESP means an ABS fault. TCS/ESP lights as well to show that both systems are affected.

@hypon12: Most likely fault is the failure of a wheel sensor, but get it on a diagnostics machine or VCDS to verify the fault.

TCS/ESP (26) light plus EML (22) is usually a solid indication of failed MAF. Apparently the MAF signal is used in the TCS calculations.

 

[cupra r. ash]

Wher is the abs sensor? And how do i check tonsee if its goosed?

 

[Ronin225]

Yes, hold my hand up, i was thinking of TCS not ABS
ABS sensors are on the hub of each wheel, mounted just of what looks like a gear
They count each pulse to determine rotation speed of each wheel.
Vagcom will tell you which one to check

 

[Brettyboy]

Are the abs sensors behind the brake discs ? My abs & tcs light come on & off,had it on vag.com has come up as both rear abs sensors

 

[mk4 cupra]

To test your maff there's two ways with out vagcom

1 sit at tick over with engine at running temp and rev hard down In neutral if you red line ok if you don't manage to red line and stops short mag faulty

2 unplug maf sensor take for run if u have more power then maf faulty if not then could be something else

There the ways if cheak my maf. To behonest of I sore ESP light and abs light I would never think it would be a maf faulty due to there nothing to do with a maf sensor

 

[Muttley]

The sensors are attached to the stub axle carrier from behind, scanning a toothed wheel attached to the hub.

 

[Brettyboy]

The sensors are attached to the stub axle carrier from behind, scanning a toothed wheel attached to the hub.

Thanks Muttley

So it the discs are taken off then it will be in view ?

Also i need to replace back plates as there rotten,do they unbolt or does the hub need to come off to get it off ?

 

[Muttley]

Googling for Golf ABS sensor got me a good selection of pics

Front sensor, with the hub removed

From this VW Vortex thread which also shows the toothed wheel.

Here's the rear wheel hub and sensor - the toothed section is below the sensor here

Rear stub axle with the hub removed showing the sensor.