1990 gsi abs issue

[beermonsterblack]

hi guys I have a 1990 gsi 2000 2wd I get the abs coming on and off intermitantly ignition on light on then goes as it should drive off stays off then appears at no determand length of time but I cannot read the codes as I do not have the wire in the diagnostic port would op-com work as a friend of mine has it

[Robsey]

Opcom does not really support 10 pin ALDL diagnostic port vehicles.
Also - if there is no wire in the diagnostic port for the ABS, I cannot see how it could.

Opcom (with a 16 to 10 pin adapter), only uses the standard ECU k-line wire on pin 7.
There was rumour that it also uses the ECU wake up line on pin 15, but I have not seen evidence of this.
From memory pins 13 and 15 are not populated on a standard Opcom pcb.
It will reproduce the same 2 digit codes that you would get by doing a paperclip test.
When I had a C18NZ in my Cav, it even gave me turbo fault codes...
Turbo on a 1.8SPi ? - I wish !!

If yours is an early ABS-2E equipped vehicle, I am guessing that your module is under a hump in the carpet between the sill and the front passenger seat.
The fact that you fault is intermittent and not constant infers that it could be due to a loose / dirty or significantly weakened wire or it's connector pin.
Being down by the sill means that the module could have got wet and possibly corroded some of the pins - especially if it has ever had a perished window seal, leaking matrix, long term lay-up or rotted sill

Also -check for cracks or crud on you toothed abs rotor rings on the wheel hubs.

Regards,
Rob.

[beermonsterblack]

ok thank you let the fault finding begin time to dig out the multi meter and yeah it is under a hump by the passenger seat altho I just noticed the handbrake on light isn't working could this be related I wonder

[iangsi]

Try reading my thread may be of help, sorted my problem.

viewtopic.php?f=7&t=13600

[btcctroy]

I think if you look at one of the front wheel sensors the fault will become quite apparent as one of the mounts has bent causing the Sensors magnetic face to wear away

[beermonsterblack]

I think if you look at one of the front wheel sensors the fault will become quite apparent as one of the mounts has bent causing the Sensors magnetic face to wear away

ok thanks i'll have a look I think you know my cav as the bloke I got it from mentioned you

[beermonsterblack]

Try reading my thread may be of help, sorted my problem.

viewtopic.php?f=7&t=13600

thanks gunna read through it now

[beermonsterblack]

ok guys this is really p***ing me off ive replaced the brackets to the plastic type and just had 2 new cv's with the correct toothed rings and the light still comes on are all the sensor interchangeable as the front has one metal sensor and on plastic type and the ends are different too

[beermonsterblack]

can anyone help

[colin1]

You could try the good old bad old disconnect-the-battery-for-30-minutes ruse, see if that works

[beermonsterblack]

tried that m8 still comes on im just gunna burn it hahaha