ASD fault check

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ASD fault check; can someone pin it please
Topic Started: Sun Nov 30, 2008 8:28 pm (533 Views)
cossie connoisseur	Sun Nov 30, 2008 8:28 pm Post #1
there can be only one ;-) Posts: 10,081 Group: Members Member #110 Joined: December 18, 2005	Check procedure (from pentoman) Open bonnet Check ASD computer is installed (in front of the battery possibly under a plastic cover) Find rectangular diagnosis socket near the battery Find pin 5, it has a big number 5 on it Start engine Connect wire from pin 5 to ground (this is for reading the fault) Hold it there for 2-3 seconds Release The ASD light goes out, then flashes on a number of times Count the number of times (there's a list of how many flashes mean what somewhere) Connect wire from pin 5 to ground, this time for 10 seconds This will clear the fault from the memory Drive the car around. The light will almost certainly come back on, indicating the fault is still there Note that the clearing fault step must be done after first reading the fault flashes mean; 1 no error 2 ASD computer broken 3 break light switch broken or wire interrupted 4 no revolution signal from front left wheel 5 no revolution signal from front right wheel 6 no revolution signal from rear axle 7 no revolution signal at all 8 magnetic switch or break light switch broken simple



Ukmerctechie	Sun Nov 30, 2008 9:53 pm Post #2
No Longer active on forum Posts: 2,815 Group: Members Member #454 Joined: August 12, 2006	Missed a code off Nick. Heres the code table.... And the unstored faults..... Edited by Ukmerctechie, Sun Nov 30, 2008 10:00 pm.



cossie connoisseur	Sun Nov 30, 2008 9:58 pm Post #3
there can be only one ;-) Posts: 10,081 Group: Members Member #110 Joined: December 18, 2005	thanks mate,



pentoman	Mon Dec 1, 2008 2:50 pm Post #4
Resident OVP Expert Posts: 2,789 Group: Members Member #11 Joined: November 6, 2005	We used to have a pinned topic I thought? Maybe not. Good thought!! It's clear from the circuit diagram that 8 flashes could also be... der-di-der.... the OVP! And probably is the OVP especially if your cold running is crap or idle is way high (1300-1400rpm)!! I've replaced OVP to fix 2 ASDs so far on a W201 and W124 so I'm pretty confident. So let's add that too. And yeah remember after fixing the problem you have to read the code again then clear it immediately afterwards or the light will stay on and you'll be thinking you never fixed it.... d'oh.



merc190uk	Mon Dec 1, 2008 7:59 pm Post #5
Steve Posts: 8,779 Group: Admin Member #1 Joined: November 1, 2005 Colour / Year / Engine 702/87/2.3-16	excellent pinned



stwat	Mon Mar 9, 2009 6:28 pm Post #6
Wibble Posts: 16,603 Group: Admin Member #28 Joined: November 11, 2005 Colour / Year / Engine Smoke Silver / 1988 / 2.3-16	Quote: Find rectangular diagnosis socket near the battery I don't suppose anyone has a pic of this socket do they??



Matt	Mon Mar 9, 2009 6:32 pm Post #7
Administrator - Hawk Eye Posts: 14,326 Group: Admin Member #20 Joined: November 8, 2005	You can't miss it Stu, its right behind the passenger front shock turret.



cossie connoisseur	Mon Mar 9, 2009 6:40 pm Post #8
there can be only one ;-) Posts: 10,081 Group: Members Member #110 Joined: December 18, 2005	has a cap on it and about a dozen holes in it, its what makes taking the battery out a little dificult



pentoman	Mon Mar 9, 2009 8:13 pm Post #9
Resident OVP Expert Posts: 2,789 Group: Members Member #11 Joined: November 6, 2005	Indeed you would need to be a mole to miss it.



stwat	Mon Mar 9, 2009 8:16 pm Post #10
Wibble Posts: 16,603 Group: Admin Member #28 Joined: November 11, 2005 Colour / Year / Engine Smoke Silver / 1988 / 2.3-16	Ahh that thing. Cheers.



stwat	Tue Sep 1, 2009 8:11 pm Post #11
Wibble Posts: 16,603 Group: Admin Member #28 Joined: November 11, 2005 Colour / Year / Engine Smoke Silver / 1988 / 2.3-16	I have code 8. So what exactly is the solonoid valve?



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