ABS, ESP and stop lights on

[Clart]

ESP button no longer works either - Would a faulty switch cause the lights on the dash or is it more likely to be an ABS sensor or something?

 

[Feirny]

Probably the brake pedal switch mate, take it out and push it in, then pull it all the way back out so it clicks.

 

[Clart]

Tried that, still on.

 

[loz_m]

Mines doing the same. I've recently had the wheels off so I'm thinking mines abs related

 

[aucky]

Mine was a rear abs sensor.

Replaced with a second hand one from Renparts, reset the alarm code, sorted.

 

[loz_m]

I'm pretty sure mines the front right as that was the side where I took the suspension damper off.

 

[Clart]

Mine was a rear abs sensor.

Replaced with a second hand one from Renparts, reset the alarm code, sorted.

Did u have a serv light on too?

 

[Feirny]

SERV light goes on to indicate a fault, should go off once the others go off.

 

[aucky]

Apologies, yes it did.

If the brake sensor didn't sort it I think the other one is *gasp* steering angle sensor.

 

[Clart]

Ive got no serv light on though? Surely that means there is no fault with a sensor?

 

[Clart]

Anyone?

 

[Spinksy]

maybe the bulb has gone on your serv light? :L

on a serious note... is there anytime the lights go off (even if breifly)

 

[scotty2hotty81]

Get it plugged in at Fred's, the reset of the brake light switch won't fix a fubard switch.

 

[Clart]

This is a weird one. Might be one for mr diamond motors.

When i bought the car there were no lights on. They came on a few weeks ago after i'd cleaned the car and went for a raz.

Had it plugged into CLIP at Bmh.01s a couple of weeks ago. He said that it looks like the airbag ECU was replaced at some point (even though its the original part number) as clip couldn't communicate properly with it. So basically it looks like i have no ABS (could this be caused by a faulty ecu or abs pump?) or airbags. To add more confusion into the mix, i have no airbag or serv light come on even when the ignition is turned on - so it looks like the have been cut out or taped up.

help!

 

[MicKPM]

Deffo sounds like someone has tried to hide something in the vehicles history. Daveski had a similar issue with one of his 172's and that had the SMD LED's removed from the PCB of the clockset (so no warning/fault lights)... Soon got it sorted out though for him.

If there's a comms issue with the ABS then that's one issue that needs fixing and possibly why the ESP isn't working/causing the warning lights.

What did Ben suggest may be the cause of the comms issue?

I'd start by giving the car a proper look over for signs of pikey fixes, bodges and things that just don't seem right, then maybe run some CAN network tests.

If you want me to book it in then give me a nudge as these kind of faults are my bread and butter.

Mick

 

[Clart]

Had it at ben's again today, we manages to locate the airbag faults, first was the drivers pretensioner which I'll replace, second was the driver airbag - it's got a 197 wheel on and the voltages were too low. Not too worried about that, but the main issue now is the abs. It came up with an abs computer fault at pin 26 brake pressure sensor. I'm going to try to check the connector to the pump ASAP. How easy is it to change the pump? Looks like a pig of a job.

 

[Clart]

There was tape over the dash lights btw and after changing the airbag Ecu it let us change the values today.