Technical Can bus errors

[wad2502]

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?

 

[fronteratech]

battery low

 

[cainy1989]

yup sounds like low battery, or possible poor earth with the gauge dropping to 0

 

[T14086]

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.

 

[fronteratech]

worth getting battery checked cheapest first

 

[wad2502]

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.

 

[wad2502]

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.