Results 1 to 6 of 6
-
24 June 2020 #1
- Join Date
- 08 Oct 2018
- Location
- Bratislava
- Posts
- 4
- Saab(s)
- SAAB 9-5 Aero 2.8T XWD 2011, SAAB 9-3 2.8T Aero Convertible 2008, SAAB 9-3 TTiD Aero 2009
ESP problem 9-5 2.8T XWD Aero, 2011
Hi friends,
I have following problem with ESP on my 9-5 Aero 2.8T XWD, 2011.
After starting engine and driving approx. 2 minutes, ESP failure appears on display. Engine goes to “protecting mode” switching off turbo. This status takes approx. 1-2 minutes. Then ESP failure disappears from display and engine returns into a normal mode. This procedure repeats few times within first 20 minutes of driving. After that engine runs well without any problem. The issue activates when car stops for more than 3 hours. In other words, I am facing this problem every morning driving to my office and every afternoon driving to my home. It takes 5 months already.
I visited service which owns GM diagnostic device with new9-5 software. The diagnostic showed two errors: lambda (EGO) sensor and mass air flow sensor. They changed both but situation remains same. I am getting crazy of that, so if somebody can give me some idea, I will be happy. Thanks in advance.
-
24 June 2020 #2
- Join Date
- 10 Apr 2017
- Location
- Denham, England
- Posts
- 541
- Saab(s)
- 2011 2.0 9-5 Aero
You really need WIS to understand the ESP operation, and a Windows computer to run it. However, this is part of what it says.
There is a lot more but, as I suspected the components you have replaced have nothing to do with the warning message you have seen. I suspect that there is a sensor that is "out of range", possibly one, or more, wheel speed sensors.
For some reason the two pages are in reverse order.
-
25 June 2020 #3
- Join Date
- 08 Oct 2018
- Location
- Bratislava
- Posts
- 4
- Saab(s)
- SAAB 9-5 Aero 2.8T XWD 2011, SAAB 9-3 2.8T Aero Convertible 2008, SAAB 9-3 TTiD Aero 2009
Thank you very much for your advise. Sorry, I am not technician, what is WIS? I also wonder why diagnostic didn´t show error of wheel speed sensor. Should I order all 4 sensors and replace them? I already replaced EGO sensor, mass air flow sensor, now I should buy wheel speed sensors....but still no guarantee that the problem is solved. Is it possible to try wheel speed sensors from another 9-5NG just to test it ot the sensors are somehow paired with my ECU? Sorry for maybe stupid questions.
-
25 June 2020 #4
- Join Date
- 10 Apr 2017
- Location
- Denham, England
- Posts
- 541
- Saab(s)
- 2011 2.0 9-5 Aero
If a wheel speed sensor is not giving the correct output it can't be picked up by diagnostics if the car isn't moving. You could just buy one sensor and try it in each position but if two are at fault you might need to do it a second time.
Rather than repeat myself, you might read this http://saabworld.net/showthread.php?...9118#post79118
-
26 June 2020 #5
-
22 July 2020 #6
- Join Date
- 08 Oct 2018
- Location
- Bratislava
- Posts
- 4
- Saab(s)
- SAAB 9-5 Aero 2.8T XWD 2011, SAAB 9-3 2.8T Aero Convertible 2008, SAAB 9-3 TTiD Aero 2009
ESP issue
Hi GeoffR,
let me inform you about development of my ESP issue. The electician found that alternator gives only 80A instead of 150A. They re-built the alternator but nothing changed. Then he checked all wires and cleared throttle body and its contacts. Nothing. I bought a brand new tires to avoid differences between worn tires. Nothing. The suspicion on cambus between ECU and ABS control unit occured. But test didn´t prove it. The latest suggestion from technician is to by new ABS control unit. I really don´t know what to do now...
Similar Threads
-
Hot start problem 2006 9-5 petrol aero
By QBee in forum Saab 9-5 (1998-2009)Replies: 4Last Post: 08 February 2018, 13:30 -
SAAB 9-5 2011 2.0 TiD Problem, please help !
By vladdavis in forum Saab 9-5 (2010-2012)Replies: 0Last Post: 16 April 2015, 20:50 -
2011 9-5 Turbo 4 Premium: Stereo Problem?
By mattlach in forum Saab 9-5 (2010-2012)Replies: 6Last Post: 19 May 2013, 03:05 -
Mechanical sound problem 9-5 2003 Aero
By Johan Ivarsson in forum Saab 9-5 (1998-2009)Replies: 8Last Post: 18 December 2012, 12:40 -
2006 9.3 Aero, Headlight Problem
By Guythunder in forum Saab 9-3 (2003-2014)Replies: 10Last Post: 14 May 2012, 21:14