ABS warning light
Thread Starter
Three Wheelin'
Joined: Nov 2001
Posts: 1,363
Likes: 0
From: Norfolk
ABS warning light
I use car every day. ABS warning light came on once last week once and again this morning. But when I turned car off and then started it again it did not come on again? I'll speak to specialist but wondered if anyone had any thoughts on this? Car is 1990 C2.
Thanks in advance.
Thanks in advance.
Last edited by Roygarth; Apr 1, 2008 at 07:00 AM. Reason: spelling!
Three Wheelin'
Joined: Dec 2003
Posts: 1,632
Likes: 2
From: Milton Keynes, UK
Two immediate thoughts.
1 - Brake fluid level low
2 - Low battery voltage
There are several other possibilities but these two are pretty easy to check before you start looking for something more complicated.
Regards
Dave
1 - Brake fluid level low
2 - Low battery voltage
There are several other possibilities but these two are pretty easy to check before you start looking for something more complicated.
Regards
Dave
Three Wheelin'
Joined: Dec 2003
Posts: 1,632
Likes: 2
From: Milton Keynes, UK
Yes, it should be on the driver's side - right in case of RHD, vice versa for LHD.
Most things are the same between 964 and 993 - except those funny headlights (!!) and a few things on the heating and rear suspension. I'll run for cover now!!!
Regards
Dave
Most things are the same between 964 and 993 - except those funny headlights (!!) and a few things on the heating and rear suspension. I'll run for cover now!!!
Regards
Dave
Nordschleife Master
Joined: Feb 2007
Posts: 5,095
Likes: 3
From: Cheshire, UK
Mine would come on when I started the car and then go off by itself just after I drove off. The problem disappeared around the time I fitted a new battery. This supports Dave's theory of the low voltage possibility.
However, I can't be 100% certain this cured the problem by itself as shortly after that I removed and cleaned all the wheel speed sensors to resolve an issue of the ABS only working intermittently.
However, I can't be 100% certain this cured the problem by itself as shortly after that I removed and cleaned all the wheel speed sensors to resolve an issue of the ABS only working intermittently.
Thread Starter
Three Wheelin'
Joined: Nov 2001
Posts: 1,363
Likes: 0
From: Norfolk
Brake fluid level is OK. Don't have battery tester but it seems OK.
Ref. 993 V 964 aesthetics: 964 has prettier front, 993 has prettier rear, 964 has prettier side. So 964 wins 2 - 1!
But my 993 is an RS so there!
Ref. 993 V 964 aesthetics: 964 has prettier front, 993 has prettier rear, 964 has prettier side. So 964 wins 2 - 1!
But my 993 is an RS so there!
Instructor
Joined: Dec 2005
Posts: 120
Likes: 0
From: Wiltshire, UK or Norwalk, CT
You could try cleaning all the earth contacts under the bonnet around the front of the car.
Also remove the abs ecu plug and check for signs of water ingress and corrosion. Get a piece of emery cloth and wipe the contacts over once or twice before refitting.
This is either going to be an easy fix or an expensive one.....guess which one I have!!
Also remove the abs ecu plug and check for signs of water ingress and corrosion. Get a piece of emery cloth and wipe the contacts over once or twice before refitting.
This is either going to be an easy fix or an expensive one.....guess which one I have!!
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Burning Brakes
Joined: Feb 2003
Posts: 985
Likes: 1
Roygarth
The next time the problem presents itself try reving the engine in neutral and see if the light turns off when the engine hits something close to 3500 RPM give or take a few hundred RPM. If it does, this is an indication of a cold solder joint on the connector at the back of the clock or an issue with the charging system (i.e alternator or voltage regulatator).
Hope this helps
Bill
90C2
The next time the problem presents itself try reving the engine in neutral and see if the light turns off when the engine hits something close to 3500 RPM give or take a few hundred RPM. If it does, this is an indication of a cold solder joint on the connector at the back of the clock or an issue with the charging system (i.e alternator or voltage regulatator).
Hope this helps
Bill
90C2
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