On-Board Diagnostics - Fault Code Reading

Alexander · Nov 25th, 2008, 22:16

My 960 B230FT (1991) has two Diagnostic Units located in the engine compartment bolted back to back against the left suspension strut tower.

One is black and clearly marked "A". It contains a switch, a red LED, a flylead on the cover and has six numbered sockets out of which only three have cables in them.

A
7 3
6 2 (Number 2, 6, 7 have cables)
5 1

The second one is grey and clearly marked "B". It has six numbered sockets out of which only two have cables in them. No switch or LED.

B
7 3
6 2 (Number 2, 6, have cables)
5 1

I know that Diagnostic Unit A socket 2 and 6 are for the Fuel and Ignition system checks respectively but what is socket number 7 for?

Similarly, what are sockets 2 & 6 in Diagnostic Unit B for and how is it used?

Any help would be much appreciated.

Alexander.

CTCNetwork · Nov 25th, 2008, 22:54

Hi,

Have you checked out the FAQ on this:
FAQ Diagnostic Codes...

Des. . .

cumbrianmale · Nov 25th, 2008, 22:57

I don't know my self.

Have a read here.

cumbrianmale · Nov 25th, 2008, 23:00

Quote:

Originally Posted by CTCNetwork

Hi,

Have you checked out the FAQ on this:
FAQ Diagnostic Codes...

Des. . .

Snap....

Alexander · Nov 25th, 2008, 23:26

That is so helpful,

Many thanks to the Forum Support Team!

Alexander

cumbrianmale · Nov 26th, 2008, 00:05

De nada

Your welcome.

Nov 25th, 2008, 22:16	#1
Alexander Junior Member Last Online: Dec 14th, 2009 13:49 Join Date: Oct 2004 Location: Bristol	On-Board Diagnostics - Fault Code Reading My 960 B230FT (1991) has two Diagnostic Units located in the engine compartment bolted back to back against the left suspension strut tower. One is black and clearly marked "A". It contains a switch, a red LED, a flylead on the cover and has six numbered sockets out of which only three have cables in them. A 7 3 6 2 (Number 2, 6, 7 have cables) 5 1 The second one is grey and clearly marked "B". It has six numbered sockets out of which only two have cables in them. No switch or LED. B 7 3 6 2 (Number 2, 6, have cables) 5 1 I know that Diagnostic Unit A socket 2 and 6 are for the Fuel and Ignition system checks respectively but what is socket number 7 for? Similarly, what are sockets 2 & 6 in Diagnostic Unit B for and how is it used? Any help would be much appreciated. Alexander.

Nov 25th, 2008, 22:54	#2
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, Have you checked out the FAQ on this: FAQ Diagnostic Codes... Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Nov 25th, 2008, 22:57	#3
cumbrianmale Forum Support Team Last Online: Yesterday 22:12 Join Date: Mar 2006 Location: Deep in Makem territory	I don't know my self. Have a read here. __________________ Current 04 S80 D5 SE Auto 03 S80 D5 SE Man Previous Volvos 90 240 GL B230FB Auto 96 940 CD 13 V40 D2 R-design 89 745 GLE 98 V90 3.0 24v 98 945 Celebration Auto 96 965 SE Auto 86 744 GL 81 244 DL

Nov 25th, 2008, 23:26	#5
Alexander Junior Member Last Online: Dec 14th, 2009 13:49 Join Date: Oct 2004 Location: Bristol	On-Board Diagnostics - Fault Code Reading That is so helpful, Many thanks to the Forum Support Team! Alexander

Nov 26th, 2008, 00:05	#6
cumbrianmale Forum Support Team Last Online: Yesterday 22:12 Join Date: Mar 2006 Location: Deep in Makem territory	De nada Your welcome. __________________ Current 04 S80 D5 SE Auto 03 S80 D5 SE Man Previous Volvos 90 240 GL B230FB Auto 96 940 CD 13 V40 D2 R-design 89 745 GLE 98 V90 3.0 24v 98 945 Celebration Auto 96 965 SE Auto 86 744 GL 81 244 DL

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