Golf IV / Jetta IV :: VW 2008 - OBD Communication Failure
Feb 9, 2015
Took the emission test at two different facilities last week, both test failed with an error saying "OBD Communication Failure".
This is a 7 years old car, with 63K km, nothing has been changed on this car, it still has the original wiper blades .
I went to a VW dealership today (Toronto) and this is what they did:
- Performed ODIS diagnostics, results were ok, no DTC,s in the system
- Performed a drive clean, aborted due to communication error
- Performed technical diagnostics cap discharge system, ok.
- Tested ECM ok
- Performed basic wiring test, ok.
- Next step was to remove the cluster and perform 1598 pin out diagnostic - This is where I quit.
I assume at this point I need to go through drive cycle procedure since all codes have been cleared at VW, if it's possible that there is an issue only when generic scan tools (Clean Drive OBD test systems) are used, issues with Drive Clean system software, or there is something else?
View 1 Replies
Advertisement
I have a Mk4 GTI with the 24v vr6. Car wont start, just cranking for days. This all happened a week ago. I was at work, went on lunch at 12 and drove home to eat, come back at 1 and park it. 4 o clock I get off, try to start my car and nothing. Just cranking no turn over. Ive had no prior problems with this car, other than some misfires from 2 different coils, which I've replays 2 of them.
Car has absolutely no spark. Here's the parts I've regretted throwing at it because of this
-Coolant temp sensor
-Spark plugs
-Crankshaft sensor
-Fuel pump relay
I thought for sure it would of been the crankshaft sensor but I put it in and got nothing. I've checked all my fuses and they are all good. Finally got my code read with a vagcom last night and got these 2 codes
01177 no communication to ecu
01314 no communication to ecu
I also get no CEL when turning the key on "ON" which tells me ecu.
So I've kind of narrowed it down to 3 things, but it wouldn't surprise me if it was something else though. I think it's either the ECU, relay 428 for ecu, or wiring on the ecu. I swapped in a working BDF ecu and got nothing. I figured it would at least start and then cut off because of the immobiliser, but maybe im wrong. I know when my key imobiliser died it started and then cut off, maybe with a different ecu that's not married to the car is different and wont start, I am not sure. how this works.
So after the ecu swap didnt work I started reading wires. Going off the diagram here [URL] .....
I have found the following
a) pins 1/2 for ecu ground are OKAY read 12v
b) pin 21 read 12v
c) pin 3 would go to about .12 while cranking. idk what it is supposed to be
d) pin 23, which is ground to the relay 428, read .01, which is the same reading i got off the ground for the relay spot
e) pin 62 gave me nothing with the car off
So right now my concern is kind of on the relay 428. I don't know what it is supposed to read but that seems kind of off for .12v power while cranking and .01 ground. What should these readings be? should i be reading them while cranking?
View 2 Replies
I have a friend who Just picked up a 2001 GTI 1.8T (auto) and it has a Check Engine Light, but will not communicate with the scan tool. It does have an aftermarket radio, and I did unplug it for giggles, but still no comunication. the K line has 8V on it now.
Is there something IM missing here thats a common problem?
View 2 Replies
I've done as much research as possible, why my Jetta won't start. Here's what happened. I've had the car for 11 months now, put in a new clutch, timing belt, water pump, cool packs, valve cover gaskets, 3" stainless downpipe, and rear springs when I got the car. My rear 02 sensor wire was hanging down below the car, after the downpipe installation. I didn't think much of it until the car died going down my driveway on a rainy day (Had a CEL for a vacuum leak) but right when it died I threw a scanner at it and I got a "no communication with ECM" message.
Cranks but doesn't start and CEL doesn't come back. I did some research and found out that my o2 sensors are in the same circuit or system. Well I found that 2 wires from the rear o2 sensor had shorted out and caused my car to die. I checked the 100 and 428 relays under the hood and they click like normal and seem to be working fine, pulled apart ecm and all looks well and so I reassembled it. The 409 fuse under the dash had just a tiny bit of soot or something covering a few of the prongs so I took the black plastic cap off of it and everything looks ok. Reassembled and reinstalled. Put a new crankshaft position sensor in it. Still nothing. None of the fuses in the side panel are blown either. I'm scratching my head on this one.
View 2 Replies
Having issues with the instrument cluster and lost communication trouble codes. My truck has been having issues and it loses comm with all the modules. All the warming lights the truck has come up on the LED screen in the dash and if I turn it off it will not start. Most recently my traction control light stays on and my tranny is locked into 5th gear. I have park, reverse & 5th gear. Most recent DTC's are lost come with TCM & ABS control module. It seems to be getting more consistent but was very intermittent. Spent a week at ford with no progress. Truck wont start for a full day and then will start the next morning? When its bugging out it wont even prime the fuel system of turn over. Cab was off last fall to install SPE diesel STG 2 short block, Industrial compound turbo kit & water/meth kit. truck has been amazing and insane power until recent electrical/computer issues. When truck is bugging out tuner will not communicate with the truck and cannot read codes or remove programmer.
View 14 Replies
I think I blew a power steering hose. I lost all my fluid and lost power steering. I'm at work. Is it safe to drive 3 miles home with no fluid?
View 4 Replies
What would make the OBD II not read the code that is set on my truck. It says "Communication Error..." Fuse 41 grants power to the Diagnostics port and the cigarette lighter. The cigarette lighter is working. Any other reasons I can look at?
View 3 Replies
2003 Jetta GLI 2.8L 24v VR6 .... Last night I went to a friends house, everything was normal on the way there, probably 35-40 degrees out. When I got to his house and shut off the car and pulled the key out the power died (clock/trip meter reset) and the alarm started going off. It has done this before once or twice but I could never figure out what it was and it was never really an issue except for the clock resetting.
Jets won, went to leave and the car wouldn't start. It was raining gently at the time but the car has weathered worse. I replaced the battery ~2-4 months ago so it should definitely still be good. Jumped with my friend's car, started on the first try. I let it sit for a bit then we were on our way.
1/4 mile away in the middle of an intersection the car died, power steering, everything, and I had to drift to the other side of the road. The person across the street from me was a cop and it was 12:30 in the morning but he was gone before my car died. I have been driving 5/6 speeds all my life and I know I didn't cause the stall out. The dash lights flickered and dimmed. I shut everything off and then gave it a try and the car started right up. Revved the engine a few times, reverse and drove away. It was fine the rest of the way home.
The battery connections are tight. The car has started every single time up until now with the new battery. My old battery did leak some acid on the copper connectors and into the main positive power cable but I neutralized all of it and cleaned it off and it looked fine except for some pitting on the outside of the terminal clamp. The car is mostly stock except for the exhaust but that was years ago.
Current Battery Voltage: 12.37 ... I just started the car for the first time this morning and it started perfectly. started @ ~1200 and then settled down to ~800rpm after a bit, it usually does this when its cold out. No codes have been thrown.
View 1 Replies
Battery kept dying. Had the battery tested. Bench tested as OK but kept dying. Replaced the battery with a new OEM. In a week, that battery was dying too. Alternator was putting out 13V but would dip down to 11V. Also did a parasitic current draw test. Car is only drawing 20mA at rest. Replaced the alternator with brand new. New alternator putting out 14.4V. Battery keeps dying. Still no parasitic current draw.
I did two things right around the same time I started having the issue. I put in a new head unit. I already had an aftermarket head unit and I simply upgraded. I know this isn't the issue because I ripped the thing out completely, including wiring harness, and I still kept having a problem. The other change I made was going from a MFSW to a 3-spoke. I removed the MFSW relay and switched the pins in the column so that the horn and airbag work properly. I tried the cruise control and it doesn't work. When I try to turn on the cruise control, it blows the horn fuse. Replaced the horn fuse and I just don't use the cruise.
What I'm wondering is if I messed up the CCM when I did the steering wheel swap. I've read that bad CCMs can kill batteries. I'm not having the typical faulty CCM issues. The only issues, besides the battery dying, are that the unlock on the keyfob will stop working at random, and the "door ajar" light on my dash flickers at random.
View 24 Replies
So I swapped an R motor into my 20th anniversary GTi. It idles fine as soon as I rev it and the idle comes back down it starts breaking up and I get a code for exhaust flap no communication. Of course, there is no communication since I don't have one. Is there a way to code this out or to trick the ECU to make it think its there? As soon as i clear the code the car runs fine, even if I just turn the car off and back on, it runs fine.
View 24 Replies
I am having a no start issue with my 2008 golf city( it is a mk4 with a facelift) i have already replaced the ignition switch but the car still will not crank. it starts up easy if i get it rolling and pop the clutch but i cannot get it to crank. when the problem first happened the car cranked what seemed like halfway then stopped and now will not crank at all.
View 2 Replies
Blower motor has stopped working on my 2008 jetta 2.0. Motor works fine and I have traced the issue back to the fan switch connector which is not getting power. Seems like it should be a fuse issue, but they all seem to check out fine. Not sure where else to look. Is there a relay upstream that could be bad? I have owned since new and it has never been apart.
View 3 Replies
Any VCDS instructions to reset?
View 2 Replies
Mk4 Golf City*, 2008, gas, manual, sunroof. Canadian budget-model.
Mysterious noise like WOMMMMM, WOMMMM itinerantly: Noise is only when air conditioning is on and the engine is warm. I can feel vibrations in the brake pedal. *You can't hear the noise under the hood*. It is quite loud in the cab, though, definitely coming from under the dashboard.
I have stuck my nose in. I removed the glove box and listened to the blower motor, it seemed to be coming from further toward the driver's side. It will be like wmmmmOMMMMM WOMMMMM pause WOMMMM like something is vibrating too close to something else and the friction causes it to go back to where it was.
I hit a speed bump going a bit fast. I broke the small cooling fan somehow so it was just loose hanging on its hub. I had that repaired but the noise hasn't gone away. It seems to be getting more frequent but so far there isn't any indication of the car suffering. This is the second summer it has made the noise.It haunts my sleep.
View 2 Replies
Outside door mirrors that fail to retract? Seem the one on the driver's door does okay but not the passenger door mirror. I guess the motor is bad or possibly the activation switch on the driver door.
View 3 Replies
I am the (once) proud owner of a 2008 Chevrolet Impala. I have owned the car for one year, putting only 12,000 miles on it (was 109,000 when I bought it.) The car has run quite well—I have not had any problems out of it (unlike the 1999-2005 generation Impalas). But, as many of you may have heard, GM had some massive recalls as of late. Many of the cars have had fatal ignition switch failures. Basically every single Impala in the last (my) generation has been recalled.
Take any other keys/paraphernalia off of the chain—basically, just insert the key into the ignition, unattached to anything. This is the fix for the time being, apparently—until they can get ignition switches for however many hundred thousand Impalas they have to fix.
I am about to make a 3 hour drive. Now, that wouldn't be the longest drive that I have made in this car (and I cringe at the idea that, driving 17 hours with a bunch of crap hanging off of my chain, that my car easily could have been one of the unfortunate ones.)
Now that I know that I cannot be sure of the safety of my vehicle, I need to know what to do in the case of an emergency. I want to know what exactly the situation of an ignition switch failure entails...basically, what happens to my car and my ability to control the car. Lastly, I need to know what to do if this happens.
View 14 Replies
So I was at a track event and pushing 150 mph and heard this terrible sound. I look in rear view mirror and saw something black flying through the air. I thought it was my carbon fiber diffuser but turned out to be this.
View 12 Replies
Electric power steering failing when starting the car and driving right away without warming it up?
My 2009 ISF has recently started doing this occasionally. It was when I started the car for the first time of the day, and pulled away within 10 seconds or so. When I let it "warm up" for a minute I have not had it happen.
But the thing is, I've had the car for a few months and have never had this happen until now. My mechanic plugged it in to the computer and there are no codes up, or in the history.
View 14 Replies
I've been using my HEX+CAN and VCDS a lot lately, and find that a lot of the time I get many communication errors. This makes some things, like looking into the measured blocks on the engine controller nearly impossible. Very close to impossible. Could barely find out that my second MAF sensor was bad (replaced, now.) Is this standard for Phaetons, or is this just me?
I am using Mac OS X 10.8.4, with Parallels Desktop 7 running Windows XP SP3 x86. It occurs with both the latest stable and beta versions of VCDS.
View 4 Replies
We recently purchased a 2008 RX350 with 61,000 miles. We had a potentially dangerous brake failure when the brake booster unit failed. It was an expensive repair ($1400.) and Lexus has refused to stand behind the product.
View 3 Replies
Ok so I've had this problem since I bought the truck and has never really caused any damage anywhere except in the rain and snow it makes it brake loose much easier. i bought the truck at 90,000 and im at 217000 now. I just recently added a programmer and bored it out and now I am concerned the extra power will cause catastrophic failure, i found this which accurately describes it as to what the problem is? my 92 f-250 felt this way when the driveshaft was getting loose but no such problem on this one.
View 3 Replies
