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Date: Thu, 18 Jun 1998 09:31:20 -0500
From: "Erich Moraine" <>
Subject: Re: Fault codes

Thanks for your response, I will track down the Bentley book. It is clear that the Haynes book won't do for this issue. Ronald M Friesen wrote in message <6m73ik$412o$>... >Here's the message i thought I had lost. > >I found the following in my Robert Bentley Saab manual: >After a discussion of "On-board Diagnostics" for LH 2.4 & LH 2.4.2 fuel >injection systems: The fault code display is triggered by grounding a pin >at the LH control unit test connector. '87 900 16valve eng don't have an LH >fault code readout - only an EZK ignition readout. On '88s there is a 3 pin >test connector in the engine compartment near the fresh air intake. On '89 >& later sedan models there is a *10-pin connector under the rear seat*. >They caution that the tests must be carried out exactly as shown as an extra >few seconds at the wrong time can clear the fault memory. > >If the Haynes book doesn't show this try to get hold of a Bentley book which >is sub-titled "official service manual" and sold in Saab parts dept. > >Hope this sheds light. >Erich Moraine wrote in message <6m63jb$>... >>I have an '89 900 and the check engine light occasionally lights up. >>According to the Haynes manual '88 and later US 900's use this as a fault >>diag. by shorting to ground the #3 pin on the test socket located on the >>passenger side wheel well wiring harness and reading the blinking light >>codes produced. I can't find any unused three pin connector there. There is >>however an unused 4 pin connector a foot away from the fuse box on the left >>wheel well. The factory manual for '88, which is the only factory manual >>I've got, makes no mention at all of fault code diag. via the check engine >>light. >> >>I'd like to know how to get at the fault codes and find out what's going >on. >>Thanks in advance.Any intelligent replies are gratefully received. >> >> >> > >

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