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[Johnrobbo99]

HI

My traction control light comes on and then the engine light (car with a spanner in it) comes on.
The gearbox then goes into a get you home mode - like winter mode.

Does anyone have any pointers for this one?

First post so thanks in advance

John

2002 Omega 2.6 CDX saloon. (facelift)

[tunnie]

Do a pedal test & post up codes 

http://www.omegaowners.com/forum/index.php?topic=90581.0

[Johnrobbo99]

Tunnie

Thanks
Fault code reader on order but from what I have been reading I suspect the wheel sensors

Will post when I have more info

John

[TheBoy]

Sounds like the ABS is unhappy, asking the engine to limp. Could be the other way around, so pedal trick is the easy first test.

Beyond that, it needs ABS read - are you anywhere near Serek?

[tunnie]

Tunnie

Thanks
Fault code reader on order but from what I have been reading I suspect the wheel sensors

Will post when I have more info

John

Pedal test is free and you only need a foot 

[dbug]

Tunnie

Thanks
Fault code reader on order but from what I have been reading I suspect the wheel sensors

Will post when I have more info

John

Pedal test is free and you only need a foot 

Agreed but you can't reset codes, or read live data, with your foot 

[biggriffin]

The op is about 25mins from huntingdon, contact via
www.sos-automotive.com.

[car5car]

Probably ABS module is bad.
I had ABS light, check engine light on and speedometer didn't work.
I found out, that ECM reads speed through ABS module. TCM knows speed from ECM. So, if TCM "doesn't know" speed, gears don't switch properly.
I paid $72 for module from junk yard.
Bosch 5.3 module, I think.

[TheBoy]

Probably ABS module is bad.
I had ABS light, check engine light on and speedometer didn't work.
I found out, that ECM reads speed through ABS module. TCM knows speed from ECM. So, if TCM "doesn't know" speed, gears don't switch properly.
I paid $72 for module from junk yard.
Bosch 5.3 module, I think.

The ECM, TCM and ABS all chat to each other on a CAN-based system bus, so they can all be classed as interlinked to each other's destiny

In this case, I don't think its the usual ABS ECU failure that affects post 1998 cars, as the symptoms don't quite match, hence wanting to get some diags on the car

Euro spec Omegas have various Bosch ABS ECUs, depending on age and engine. Not sure what options you have in the US, though suspect pre 1998 would be Bosch 5.1 and post 1998 would be Bosch 5.3. Those with TC would be the TC variants.

[Johnrobbo99]

Everyone

Thanks for the posts.
Pedal test shows 1 - 7
Looking into that now.
Also speedo works but the indicator lights on the gear selector is also intermittent and seems to coincide with the fault occurring.

Many thanks

John

[Johnrobbo99]

Ok schoolboy error.
Will do the test again and get 4 numbers.

[Entwood]

The intermittent lights on the gear selector may be indicative of  the problem ??  I'd suggest a good clean of the selector as per the guide before doing anything else.

If the ECU's don't know which gear its in they are going to throw wobbly's all over the place .... 

[Johnrobbo99]

It still changes gear smoothly when in fault condition.
When going into the fault condition it snatches the gear.

[manolo]

do you have the same tire size?

[Johnrobbo99]

Ok
Fault cide from pedal test is 1700.
I do have same tyres theboption 225/55/16

Many thanks

John