ABS + VDC & Handbrake light on.

Brotrain · 10-08-2011, 07:33 AM

Hey guys, I had my stock wheels refitted today after powdercoating. After a few minutes of driving my VDC, ABS, & handbrake lights came on and remained illuminated whilst ignition was on.

When the car is restarted the lights are off, but will come back on after a few minutes of driving. I'm no rocket scientist, but I have a sneaking suspicion that there is a fault with my VDC...

I'm going to jack the car up tomorrow and have a good look around to see if there is any obvious damage, check all fluid levels, and then get a wheel alignment.

Has anyone else had this issue, or can think of any other fixes? If anything is damaged I will be heading back to the tyre fitters and demanding they pay for any replacement parts required.

clamphibian · 10-08-2011, 02:59 PM

If I accelerate hard my brake light will come on real quick and go off. Sometimes though it will go on for a few seconds then that will go off but the other two lights you mention come on and stay on until I turn the car off. I know I need to do my brakes so I just figured it had something to do with that.

Spec Jay · 10-09-2011, 01:16 PM

as your pads wear more brake fluid stays in the calipers causing the reservior level to drop. acceleration causes the fluid to move around and make the sensor read that the fluid is low, def a good time to change your brakes.

Brotrain · 11-12-2011, 08:03 PM

I'll change the pads ASAP.

Whenever I down shift to 2nd or 3rd whilst VDC is still on, there's a slight grinding sound... Once all the lights come on, the sound goes away.

I don't see how the two issues could be related, any ideas?

Spec Jay · 11-12-2011, 08:06 PM

check the brake fluid reservior first. dont want to waste money changing out perfectly good pads.

also you should still be under warranty id start there.

CrunchyCajun · 12-10-2011, 08:39 AM

Same issue here. Glad to see that it is at least not a unique issue and that there may be a simple solution. I have new pads all around that go on either tomorrow or next week, I will report back if this clears things up.

ChrisSlicks · 12-10-2011, 09:45 AM

Brake fluid is low due to pad wear. This seems to get triggered with around 50% pad life still left. Pull a wheel off and check how much meat is left but you should be good to just top up the fluid for now (just remember to take some out again when you do change the pads).

CrunchyCajun · 12-13-2011, 01:35 PM

Adding fluid got rid of the warning lights coming on under acceleration. My brake fluid level was between the min and max lines, probably about 60% of the way towards max. Touchy sensor.

ChrisSlicks · 12-13-2011, 02:05 PM

Quote:

Originally Posted by CrunchyCajun

Adding fluid got rid of the warning lights coming on under acceleration. My brake fluid level was between the min and max lines, probably about 60% of the way towards max. Touchy sensor.

Yes, it is very touchy. The brake fluid only has to uncover the sensor for an instant and it will trigger the code to disable all systems.

10-08-2011, 07:33 AM	#1 (permalink)
Brotrain Base Member Join Date: Mar 2011 Location: Sydney, Australia Posts: 3 Drives: '09 370Z, '08 D675 Rep Power: 14	ABS + VDC & Handbrake light on. Hey guys, I had my stock wheels refitted today after powdercoating. After a few minutes of driving my VDC, ABS, & handbrake lights came on and remained illuminated whilst ignition was on. When the car is restarted the lights are off, but will come back on after a few minutes of driving. I'm no rocket scientist, but I have a sneaking suspicion that there is a fault with my VDC... I'm going to jack the car up tomorrow and have a good look around to see if there is any obvious damage, check all fluid levels, and then get a wheel alignment. Has anyone else had this issue, or can think of any other fixes? If anything is damaged I will be heading back to the tyre fitters and demanding they pay for any replacement parts required.

10-09-2011, 01:16 PM	#3 (permalink)
Spec Jay A True Z Fanatic Join Date: Apr 2009 Location: Bummerton Posts: 1,510 Drives: MtB 09 370z Rep Power: 19	as your pads wear more brake fluid stays in the calipers causing the reservior level to drop. acceleration causes the fluid to move around and make the sensor read that the fluid is low, def a good time to change your brakes. __________________ 09 Monterey Blue Global Time Attack Street Class Build Build Thread:Saber! Instagram:@SpecJay

11-12-2011, 08:06 PM	#5 (permalink)
Spec Jay A True Z Fanatic Join Date: Apr 2009 Location: Bummerton Posts: 1,510 Drives: MtB 09 370z Rep Power: 19	check the brake fluid reservior first. dont want to waste money changing out perfectly good pads. also you should still be under warranty id start there. __________________ 09 Monterey Blue Global Time Attack Street Class Build Build Thread:Saber! Instagram:@SpecJay

12-10-2011, 09:45 AM	#7 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	Brake fluid is low due to pad wear. This seems to get triggered with around 50% pad life still left. Pull a wheel off and check how much meat is left but you should be good to just top up the fluid for now (just remember to take some out again when you do change the pads). __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

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10-08-2011, 02:59 PM	#2 (permalink)
clamphibian Base Member Join Date: Feb 2009 Location: Milford, MA Posts: 24 Drives: 85 Citation x-11 Rep Power: 16	If I accelerate hard my brake light will come on real quick and go off. Sometimes though it will go on for a few seconds then that will go off but the other two lights you mention come on and stay on until I turn the car off. I know I need to do my brakes so I just figured it had something to do with that.

11-12-2011, 08:03 PM	#4 (permalink)
Brotrain Base Member Join Date: Mar 2011 Location: Sydney, Australia Posts: 3 Drives: '09 370Z, '08 D675 Rep Power: 14	I'll change the pads ASAP. Whenever I down shift to 2nd or 3rd whilst VDC is still on, there's a slight grinding sound... Once all the lights come on, the sound goes away. I don't see how the two issues could be related, any ideas?

12-10-2011, 08:39 AM	#6 (permalink)
CrunchyCajun Base Member Join Date: Aug 2010 Location: MD Posts: 73 Drives: 09 tour/sprt wht 7A Rep Power: 400	Same issue here. Glad to see that it is at least not a unique issue and that there may be a simple solution. I have new pads all around that go on either tomorrow or next week, I will report back if this clears things up.

12-13-2011, 01:35 PM	#8 (permalink)
CrunchyCajun Base Member Join Date: Aug 2010 Location: MD Posts: 73 Drives: 09 tour/sprt wht 7A Rep Power: 400	Adding fluid got rid of the warning lights coming on under acceleration. My brake fluid level was between the min and max lines, probably about 60% of the way towards max. Touchy sensor.