Re: "Shuddering" - Saab 9000 Bulletin Board - Saabnet.com
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Re: "Shuddering"
Posted by Senor Don (more from Senor Don) on Tue, 23 Feb 2010 14:04:43
In Reply to: RE: Don's comments on AIR, dbreid
[Profile/Gallery]
, Mon, 22 Feb 2010 18:41:02
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dbreid,
In your earlier post, (Did that, dbreid , Tue, 9 Feb 2010 14:15:32), you mentioned a similar LHM (Limp-Home Mode) concern.
The codes listed suggest you might have an intermittent 377 Main Relay, which powers the ETS. When operating as designed, there will be no Diagnostic Trouble Codes. However, when the relay fails to energize, the ETS goes into LHM, or what you might refer to as "Shuddering".
377 Main Relay is in position "J", third relay from the left, in the second row of the underdash fusebox. The Main Relay receives power from fuse 21 through fusebox pins 1 & 4. Try swapping a known good 4-pole relay, then see if your "Shuddering" concern still exists. (Alternatively, for testing purposes only, temporarily jump relay poles 30 and 87 in order to verify power at ETS ECU pin 22.)
Happy Trails!
posted by 67.34.14...
Posts in this Thread:
- "Shuddering" issue at times, need help, dbreid
, Fri, 19 Feb 2010 15:59:35- FIXED!! "Shuddering" issue at times, need help FIXED!!!, dbreid
, Thu, 25 Feb 2010 16:20:24 - TRIED MORE THINGS, dbreid
, Tue, 23 Feb 2010 13:37:00 - Re: "Shuddering", Senor Don, Sun, 21 Feb 2010 19:34:45
- Re: "Shuddering" issue at times, need help, T. Christopher, Sun, 21 Feb 2010 09:12:15
- Tried a Couple more things..., dbreid
, Sat, 20 Feb 2010 23:53:41 - Re: "Shuddering" issue at times, need help, BMN, Sat, 20 Feb 2010 02:54:40
- Re: "Shuddering" issue at times, need help, Chris9k
, Fri, 19 Feb 2010 21:51:56
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