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Author Topic: Couple of niggling fault codes on the Barge... C1022/C1022-0019  (Read 8048 times)

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Doctor Gollum

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As above,

ESP and Cruise not working, and ABS light on. Showing two 'malfunctions' : ESP and BAS not working, visit workshop...

Speedo and gearbox both working perfectly, so not an actual abs fault.

No other codes on the car, and Engine, EIS, Gearshift, Airmatic and ESP ecus all from the same car.
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henryd

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Just looking through Google it seems that is a Can fault between engine ecu and traction system
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Doctor Gollum

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Which suggests a wiring issue. Engine ecu is in the right hand engine SAM, ESP is in the left engine SAM.

I don't suppose that they would have a direct connection?

There was some insulation damage to a couple of wires on the CAN terminal under the dash next to the OBD2 port under the dash, but no evidence of shorts or breaks :-\

Time to dig out the meter I guess :-\ Am I looking for continuity or something more exciting?
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henryd

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Have you access to wiring diagrams ?
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Doctor Gollum

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I do, (I have WIS etc), but they're not the easiest to use on the laptop...

That said, I haven't had much chance to dig in... Impending asbestos garage ceiling removal/bathroom rebuild ::), so was hoping swapping out the ecu with the matched one from the engine ecu etc would have sorted it.

Will do some digging tomorrow hopefully...  ;)
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Andy B

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you know what the reply from a Merc forum would be .....

Take it to an  Indie & get the codes read   ;)  :y :y
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Doctor Gollum

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Which will be 1022, 1022-019 :D

If the CAN wiring shows continuity, then it will get a chat with STAR, as it seems that the fault needs clearing from the engine Ecu rather than the ESP one. Unfortunately on my iCarsoft, the fault is showing on the ESP, the engine ecu showing no faults  ;D
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Andy B

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Which will be 1022, 1022-019 :D
but you know what I mean  :y

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dave the builder

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it's common on canbus for faults to be stored in various modules and ALL modules need clearing of faults
you probably know this already  :) along with the possibility that a rubbed wire in a door shut loom, ABS sensor loom etc  grounding or becoming live or a break can cause problems
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Doctor Gollum

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Absolutely no other drivetrain faults. In fact the only other faults are for the passenger child seat recognition and soft closing (this car never had it fitted, but the 320 the ecus etc came from did, so it sees the components as 'missing'... that can be programmed out, but has no bearing on this issue.

The two codes are linked and specific.

I have identified the potential weak link, and just need to find it under the nearside floor :D
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Doctor Gollum

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Found the connections and all sound.

I think it's going to need a thorough talking to, as running the car with the ESP canbus connection unplugged, it had a reet proper fit ;D Took nearly ten minutes to clear all the codes from that :D

Point is, the issue would appear to be a software one rather than a hardware one.
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Marks DTM Calib

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If your only getting sub codes like this then its not CAN bus, if CAN goes down all comms are lost to that (and any other modules on that CAN network) plus a set of CAN interface fault codes.

Which ABS unit is it, not the dreaded Teves MK60 (I think they used Bosch but, its an era where they were a bit in random part mode)?
« Last Edit: 18 May 2020, 17:19:36 by Marks DTM Calib »
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Doctor Gollum

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Bosch without looking... Certainly the ESP module is a Bosch one. I shall double check though.

Apart from the ESP and BAS warning messages, the ABS light is on, cruise isn't working and the ESP switch does nothing... None of which is a surprise.
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Doctor Gollum

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Yup, ABS/BAS unit is Bosch  ;)

The only non Bosch ecu is the Airmatic one, which is Temic.
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LC0112G

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Any chance you could tell us un-initiated what the "BattleBus" is? I've searched for Battle Bus in previous posts and can't decide if its an Omega, Astra G or Zafira.

I got reams and reams of info when trying to track down the circuit diagrams for a facelift Omega. If you could tell me the car model, year, engine and gearbox then I might be able to locate some information. I've looked through all the likely Omega B stuff and cant find any reference to C1022.
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