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Old 12-07-2011   #1
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Can bus errors

Fiat Multijet 1.9 8v 120 BHP

While being driven intermittent ABS EBD errors occasionally "switch off Engine" once fuel gage dived to empty and I had a message telling me to refuel I had 1/4 of a tank left!

After about 20 min it slowly returned to normal.

Abs seems to be working fine even when I'm being told its not working.

Took it to a garage today and looked at the error codes we had the following:-
Central ECU Delphi Marinelli
Fault Memory 9006 Fuel level sensor Signal above maximum threshold
D0602 C-Can bus line error Signal not valid / intermittent
Anti-Lock braking system - Teves Mk20/70
Fault memory 31 ABS indicator lamp.

The lamp works (too well) any suggestions folks?
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Old 12-07-2011   #2
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Re: Can bus errors

battery low
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Old 12-07-2011   #3
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Re: Can bus errors

yup sounds like low battery, or possible poor earth with the gauge dropping to 0
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Old 12-07-2011   #4
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Re: Can bus errors

I'd be more inclined to check CAN wiring, the cluster gets fuel guage signal from body computer which is where I would look especially when combined with D602.
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Old 12-07-2011   #5
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Re: Can bus errors

worth getting battery checked cheapest first
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Old 15-07-2011   #6
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Re: Can bus errors

New battery fitted.

Cleared codes.

I now have an additional fault of the O/S/F ABS sensor intermittently dropping off line and back on line.. this is a different and separate fault to the 9006 / D0602 errors.

Cleaned connector to ABS controller unit with 1/2 tin contact cleaner.. made no difference.

I will pull the sensor off tomorrow and have a look at it. recently had new wheel bearing fitted by Arnold Clarke Stafford, before I got the car... Yes them again!

I think its gone again ( less than 4k miles since it was done) as I can hear a speed related rumble that sounds like a wheel bearing to me, coming from the O/S/F..

See my comments about the "servicing " Arnold Clarkes Stafford have done under "Garages good or bad" thread.
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Last edited by wad2502; 15-07-2011 at 02:49.
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Old 15-07-2011   #7
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Re: Can bus errors

Quote Originally Posted by T14086 View Post
I'd be more inclined to check CAN wiring, the cluster gets fuel gauge signal from body computer which is where I would look especially when combined with D602.
OK where do I find this?

Do I have to take the dash out to check the connectors?

I find the ELearn manuals particularly annoying.. I wanted to change the gearbox oil.. there is a picture of the gearbox filler plug in a different section but the description of changing the Gearbox oil has no pictures.. so I undid a "likely looking" Hex bolt and the oil came out.. however not sure it was the right one because it only took 1.5 litres to re-fill it.
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