passat abs pump replacment

   #22  

joe67

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Thanks, ill give it a try
 
   #23  

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sound right?

find those two wires on harness, check each wire at each side and test for continuity?
 
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Yes and if they have continuity to each other or ground.....& only when modules are isolated as being unplugged.

If they tone to each other, ground or any other track in the plugs when isolated ......you have a short.

If you get nothing from one end to the other you have an open..........
 
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tempted to try another module, the above sounds easy...

theres a couple fuses and relays in the box beside ecu in engine bay, ive tried searching, anyone know what they are for?

edit: this code returns all the time once engine has been started

18057 - Powertrain Data Bus: Missing Message from ABS Controller
P1649 - 35-10 - - - Intermittent
 
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joe67

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when you mentioned try group 125, i wasnt sure if you ment in the abs module... why i typed each steep..

i seen another post where it was mentioned do it in the can module, so here it is..

is this what you were looking for?
13942470_10153653853231987_1004940679_n.jpg
 
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Jack@European_Parts

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Yup........... see the module that is NA in field 4.............?

Do this in all modules cross checking the CAN communications.
 
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some have no communication with controler.. are you confident that its a wiring problem and not the module?

and these:

14002345_10153655688061987_621676294_o.jpg


this one is from the abs module
13978337_10153655688021987_290734877_o.jpg


i just unpluged the harness and replaced the parts and plugeng in harness again, all pins are ok,

to be honest am not sure where to check the continuity at the other side of plug

also i did hit the recode button inbetween module changes
 
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   #29  

joe67

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picture of plug, only thing that differs in those is the two middle big connection sit alittle bit in compared to rest. all pins on other side are ok

14002605_10153656505221987_1063649288_o.jpg



three fuses and two relays inbeside ecu
13987159_10153656505701987_631586939_o.jpg
 
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   #30  

joe67

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would it be easy enough to recode another module via vcds lite..?
 
   #31  

Jack@European_Parts

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Recoding a module doesn't establish CAN network communications...........unless it's the module that is actually bad.
 
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joe67

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Recoding a module doesn't establish CAN network communications...........unless it's the module that is actually bad.


the module was working before, it did sit outside for 24 hours before it was refitted.. considering trying another module

someone mentioned touching both battery terminals together and leaving for 30 mins, that would only do the same job as vcds clearing codes right, nothing different
 
   #33  

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I think testing & running a two wire twisted pair is warranted before changing a module.
This only takes a few minutes and time verse this cost.
Personally I dont think you needed a module in the first place & this is most likely a wiring problem or cluster gateway issue.
 
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   #34  

joe67

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i can get to the plug side, where on the other side should i test?
 
   #35  

Jack@European_Parts

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The cluster/gateway.......... and isolate using the WD or run bypass to test.

It's only two wires sir......

Do you have the WD?
 
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the one you sent before? i know where the two wires are on the plug side lol, its trying to find them at the other side thats the problem... where is the cluster gateway?
 
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i dont think i have.... there is one you posted before i was trying to read...

thanks
 
   #39  

Jack@European_Parts

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Time to get one and RTFB..........This would be the first important step in trying to fix the car.

No excuses now......




J104_to_J285.png
 
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   #40  

joe67

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these two wires need to be tested on the diagnostics plug?

edit: ill have to admit defeat mate, no matter how much i look at that, i cant fully understand it

thanks
 
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