Re: 2003 Saab 9-3 Radio problem - Saab 9-3SS Bulletin Board - Saabnet.com
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Re: 2003 Saab 9-3 Radio problem
Posted by saabdoc@msn.com [Email] (more from saabdoc@msn.com) on Wed, 6 Jan 2010 08:00:24
In Reply to: 2003 Saab 9-3 Radio problem, Jessica, Tue, 5 Jan 2010 21:04:47
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We had a car this week with that problem. The car had no fault codes stored and no break in the O-bus (optical bus). Ended up being a faulty EHU (Electronic Head Unit) this is the part of the radio you don't see. Its located behind the CD player. Most people think the part on the dash with the radio buttons is the radio, but its not. That's the ICM (Infotainment Control Module) its just a gateway for all the control modules on the O-bus.
Since any faulty control unit on the O-bus can cause symptoms like you have, it takes a little time to diagnose. The most common way to diagnose faulty control units on the O-bus if there is no break in the O-bus and no fault codes, is to swap each control units with a know good control unit until the radio starts working again.
posted by 74.7.12...
Posts in this Thread:
- 2003 Saab 9-3 Radio problem, Jessica, Tue, 5 Jan 2010 21:04:47
- Re: 2001 saab95 radio code, Ilyas Inibi, Sun, 19 Jan 2014 16:50:49
- Re: 2003 Saab 9-3 Radio problem, saabdoc@msn.com, Wed, 6 Jan 2010 08:00:24 <-- Viewing This Message
- Re: 2003 Saab 9-3 Radio problem, SWEDECAR , Tue, 5 Jan 2010 22:01:06
- Re: 2003 Saab 9-3 Radio problem, stan, Tue, 5 Jan 2010 21:59:25
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