2002 Saab 9-3 turbo, non runner

2002 Saab 9-3 turbo, non runner

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Discussion

stevieturbo

Original Poster:

17,288 posts

248 months

Tuesday 13th May 2008
quotequote all
Have a problem with a friends Saab 9-3 turbo. UK car, 2002.

Trionic OBD II

Initially the heater/climate control started malfunctioning, shortly after, the radio stopped working. Indicators also stopped working.
He arrived at work, parked up..and thought nothing of it.
On returning to the car, it wont start. Occasionally, it makes a brief attempt, but thats a rarity.

With Snap On Scanner, there is no communications. Saab themselves cannot communicate with the ecu either.
Saab cooms also says climate system not present, and entertainment not present. Trionic not present also.

There is no spark, and no injector pulses.

The ecu relay is triggering, and appears to be working on the key. Injectors and Coils do have +12v power. Just no trigger.

The RHS floor under the carpet was also flooded at a time, although all wiring, and earth points etc appear to be in good order.

He has not probed the actual engine ecu yet, as the terminals are difficult to get at, to verify if power is actually getting to it. Although the ecu power relay is working, so it should be.

Anyone any thoughts ??

Thanks, Stevie

Vixpy1

42,629 posts

265 months

Wednesday 14th May 2008
quotequote all
Got to be an earthing issue i reckon Stevie.

stevieturbo

Original Poster:

17,288 posts

248 months

Wednesday 14th May 2008
quotequote all
All earths have been checked, and appear sound, but you would think that is the problem, and was the initial thoughts too. We have the Saab workshop manual, and they are identified. All clean, no corrosion etc.

Half the car/dash has been trailed apart lol. Stupid GM POS smile